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2020
R. Chen, F. Wang, L. M. Tolbert, D. J. Costinett, B. B. Choi,
"Current Jump Mechanism and Suppression in Paralleled Three-Level Inverters with Space Vector Modulation,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 3074-3080.
R. Chen, F. Wang, L. M. Tolbert, D. J. Costinett, B. B. Choi,
"Modeling and Analysis of Zero Common-mode Voltage Modulation with Dead-Time for Three-Level,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 2905-2911.
L. Kong, S. Wang, N. Praisuwanna, F. Wang, L. M. Tolbert,
"Stability Analysis and Controller Design of MMC Considering Control Delay,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 1884-1890.
H. Gui, J. Jones, L. M. Tolbert,
"Charge Pump Gate Drive to Improve Turn-on Switching Speed of SiC MOSFETs,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 1829-1836.
S. Wang, H. Li, J. Wang, Y. Ma, F. Wang, L. M. Tolbert,
"A Power Converter Based Real-time Air-conditioner Motor Emulator,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 70-76.
D. Li, S. Ji, X. Huang, J. Palmer, F. Wang, L. M. Tolbert,
"Controller Development of an Asynchronous Microgrid Power Conditioning System (PCS) Converter Considering Grid Requirements,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 616-621.
X. Huang, S. Ji, J. Palmer, L. Zhang, D. Li, F. Wang, L. M. Tolbert, W. Geiwont,
"A Robust 10 kV SiC MOSFET Gate Driver with Fast Overcurrent Protection Demonstrated in a MMC Submodule,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 1813-1820.
J. Palmer, S. Ji, X. Huang, L. Zhang, W. Geiwont, F. Wang, L. M. Tolbert,
"Improving Voltage Sensor Noise Immunity in a High Voltage and High dv/dt Environment,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 107-113.
S. Ji, J. Palmer, X. Huang, D. Li, B. Giewont, L. M. Tolbert, F. Wang,
"Impact of Submodule Voltage Sensor Noise in 10 kV SiC MOSFET Modular Multilevel Converters (MMCs) Under High dv/dt Environment,"
IEEE Applied Power Electronics Conference and Exposition, New Orleans, Louisiana, March 15-19, 2020, pp. 1089-1093.
J. Dong, Lin Zhu, P. Kritprajun, Y, Liu, L. M Tolbert, J. C. Hambrick, K. Schneider, S. Laval,
"Quantitative Evaluation of Reliability Improvement: Case Study on a Self-healing Distribution System,"
IEEE Innovative Smart Grid Technologies, NA, Washington, DC, Feb. 17-20, 2020.
2019
N. Strain, J. Sun, X. Huang, L. M. Tolbert, D. Costinett,
"ZVS Analysis of a GaN-Based Series-Parallel Dual Transformer LLC Resonant Converter,"
IEEE Workshop on Wide Bandgap Power Devices and Applications,
Raleigh, North Carolina, Oct. 29-31, 2019, pp. 398-404.
I. Ray, L. M. Tolbert,
"The Case Against Phase-Locked Loops in Weak AC Grids,"
IEEE Canada Electrical Power and Energy Conference, Montreal, Canada, Oct. 16-18, 2019.
J. Sun, N. Strain, D. Costinett, L. M. Tolbert,
"Analysis of a GaN-Based CRM Totem-Pole PFC Converter Considering Current Sensing Delay,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 4421-4428.
M. Smith, M. Starke, L. M. Tolbert, M. Chinthavali,
"Architecture for Utility-Scale Multi-Chemistry Battery Energy Storage,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 5386-5392.
D. Li, Y. Ma, C. Zhang, H. Yin, I. Ray, Y. Su, L. Zhu, F. Wang, L. M. Tolbert,
"Development of a Converter Based Microgrid Test Platform,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 6294-6300.
Y. Ma, L. Zhu, F. Wang, L. M. Tolbert,
"Enhancing Power System Transient Stability by Virtual Synchronous Generator Control Using Wide-Area Measurements,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 2546-2551.
L. Kong, S. Wang, N. Praisuwanna, S. Zhang, L. Qiao, F. Wang, L. M. Tolbert,
"DC Impedance Model of MMC Considering Capacitor Voltage and Circulating Current Dynamics,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 646-653.
J. Palmer, S. Ji, X. Huang, L. Zhang, W. Giewont, F. Wang, L. M. Tolbert,
"Testing and Validation of 10 kV SiC MOSFET Based 35 kVA MMC Phase-leg for Medium Voltage (13.8 kV) Grid,"
IEEE Energy Conversion Congress and Expo., Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 2001-2006.
X. Huang, J. Palmer, S. Ji, L. Zhang, F. Wang, L. M. Tolbert, W. Giewont,
"Design and Testing of a Modular Multilevel Converter Submodule Based on 10 kV SiC MOSFETs,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 1926-1933.
L. Zhang, S. Ji, X. Huang, J. E. Palmer, W. Giewont, F. Wang, L. M. Tolbert,
"Multiple-Step Commutation Scheme for Avoiding High dv/dt in Modular Multilevel Converter with 10 kV SiC MOSFETs,"
IEEE Energy Conversion Congress and Exposition,
Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 1968-1973.
S. Ji, X. Huang, J. E. Palmer, L. Zhang, F. Wang, L. M. Tolbert, W. Giewont,
"Medium Voltage (13.8 kV) Transformer-less Grid-Connected DC/AC Converter Design and Demonstration Using 10 kV SiC MOSFET with High Frequency,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 1953-1959.
R. Chen, J. Niu, H. Gui, Z. Zhang, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock, B. B. Choi,
"Harmonic Analysis of Common-mode Reduction Modulation for Three-level Inverter,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 2286-2293.
H. Gui, R. Chen, J. Niu, Z. Zhang, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock, B. B. Choi,
"Design of Low Inductance Busbar for 500 kVA Three-Level ANPC Converter,"
IEEE Energy Conversion Congress and Exposition, Baltimore, Maryland, Sept. 29 - Oct. 3, 2019, pp. 7130-7137.
F. Wang, R. Chen, H. Gui, J. Niu, L. Tolbert, D. Costinett, B. Blalock, S. Liu, J. Hull, J. Williams, T. Messer, E. Solodovnik, D. Paschedag, V. Khozikov, C. Severns, B. Choi,
"MW-Class Cryogenically-Cooled Inverter for Electric-Aircraft Applications,"
AIAA/IEEE Electric Aircraft Technologies Symposium, Indianapolis, Indiana, Aug. 19-22, 2019.
H. Gui, R. Chen, J. Niu, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock, B. B. Choi,
"Modeling of Multi-Loops Related Device Turn-On Overvoltage in 3L-ANPC Converters,"
IEEE Workshop on Control and Modeling for Power Electronics, Toronto, Canada, June 17-20, 2019, 6 pages.
S. Zhen, Y. Ma, F. Wang, L. M. Tolbert,
"Operation of a Flexible Dynamic Boundary Microgrid with Multiple Islands,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 548-554.
J. Sun, N. Strain, X. Huang, D. Costinett, L. M. Tolbert,
"Inductor Design and ZVS Control for a GaN-Based High Efficiency CRM Totem-Pole PFC Converter,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 727-733.
H. Gui, Z. Zhang, R. Chen, J. Niu, L. M. Tolbert, F. Wang, B. J. Blalock, D. J. Costinett, B. B. Choi,
"Current Source Gate Drive to Reduce Switching Loss for SiC MOSFETs,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 972-978.
H. Gui, Z. Zhang, R. Chen, R. Ren, J. Niu, B. Liu, H. Li, Z. Dong, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. B. Choi,
"A Simple Control to Reduce Device Over-Voltage Caused by Non-Active Switch Loop in Three-Level ANPC Converter,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 1337-1343.
L. Zhang, S. Ji, S. Gu, X. Huang, J. Palmer, W. Giewont, F. Wang, L. M. Tolbert,
"Design Considerations of High-Voltage-Insulated Gate Drive Power Supply for 10 kV SiC MOSFET in Medium-Voltage Application,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 425-430.
R. Chen, J. Niu, H. Gui, Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. B. Choi,
"Investigation of Fourth-leg for Common-mode Noise Reduction in Three-level Neutral Point Clamped Inverter Fed Motor Drive,"
IEEE Applied Power Electronics Conference and Expo.,
Anaheim, California, March 17-21, 2019, pp. 2582-2588.
R. Chen, J. Niu, H. Gui, Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. B. Choi,
"Coupled Inductor Design for Interleaved Three-level Active Neutral Point Clamped Inverters Considering EMI Noise Reduction,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 257-264.
R. Chen, J. Niu, H. Gui, Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. B. Choi,
"Analytical Analysis of Ac and Dc Side Harmonics of Three-level Active Neutral Point Clamped Inverter with Space Vector Modulation,"
IEEE Applied Power Electronics Conf. and Expo., Anaheim, California, March 17-21, 2019, pp. 112-119.
J. Niu, R. Chen, Z. Zhang, H. Gui, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. B. Choi,
"Analysis of Circulating Harmonic Currents in Paralleled Three Level ANPC Inverters using SVM,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 2481-2487.
J. Niu, R. Chen, Z. Zhang, H. Gui, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. B. Choi,
"Design of a Single Controller for Multiple Paralleled Inverters,"
IEEE Applied Power Electronics Conference and Exposition, Anaheim, California, March 17-21, 2019, pp. 2524-2530.
M. Starke, R. Zheng, M. Smith, S. Zheng, M. Chinthavali, Z. Wang, B. Dean, L. Tolbert,
"A Multi-Agent System Concept for Rapid Energy Storage Development,"
IEEE PES Innovative Smart Grid Technologies Conference N.A., Washington, DC, Feb. 17-20, 2019.
2018
J. Dong, L. Zhu, Y. Liu, D. T. Rizy, F. Wang, L. M. Tolbert, J. Glass,
"Two-stage state estimation algorithm for distribution network analysis,"
Australasian Universities Power Engineering Conference (AUPEC), 27-30 November 2018.
J. Sangid, B. Blalock, D. Costinett, L. M. Tolbert,
"Comparison of 60V GaN and Si Devices for Class D Audio Applications,"
IEEE Workshop on Wide Bandgap Devices and Applications, Atlanta, Georgia, Oct. 31 - Nov. 2, 2018, pp. 73-76.
X. Huang, S. Ji, J. Palmer, L. M. Tolbert, F. Wang, "Parasitic Capacitors' Impact on Switching Performance in a 10 kV SiC MOSFET Based Converter,"
IEEE Workshop on Wide Bandgap Devices and Applications, Atlanta, Georgia, Oct. 31 - Nov. 2, 2018, pp. 311-318.
S. Zhang, S. Wang, N. Praisuwanna, L. Kong, Y. Li, R. Martin, F. Wang, L. M. Tolbert,
"Development of a Flexible Modular Multilevel Converter Test-Bed,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 5250-5257.
S. Zhang, J. Wang, F. Wang, L. M. Tolbert,
"Integrated Series Compensation Devices Implementation in a Power Converter Based Transmission Line Emulator,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 1091-1095.
S. Wang, S. Zhang, Y. Ma, F. Wang, L. M. Tolbert,
"Analysis of MTDC Inertia Emulation Impact on Connected AC Systems,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 3705-3712.
Y. Ma, X. Hu, H. Yin, L. Zhu, Y. Su, F. Wang, L. M. Tolbert, Y. Liu,
"Real-time Control and Operation for a Flexible Microgrid with Dynamic Boundary,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 5158-5163.
X. Huang, S. Ji, S. Zheng, J. Sun, L. M. Tolbert, F. Wang, M. Laitinen, W. Giewont,
"Impact of Body Diode and Anti-parallel JBS Diode on Switching Performance of 3rd Generation 10 kV SiC MOSFET,"
IEEE Energy Conv. Cong. and Expo., Portland, OR, Sept. 23-27, 2018, pp. 1887-1894.
R. Ren, Z. Zhang, B. Liu, H. Gui, R. Chen, J. Niu, F. Wang, L. M. Tolbert, D. Costinett, B. J. Blalock, B. Choi,
"Multi-Commutation Loop Induced Over-voltage Issue on Non-active Switches in Fast Switching Speed Three-Level Active Neutral Point Clamped Phase Leg,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 1328-1333.
R. Ren, H. Gui, Z. Zhang, R. Chen, J. Niu, F. Wang, L. M. Tolbert, D. Costinett, B. J. Blalock, B. Choi,
"Characterization of 650 V Enhancement-mode GaN HEMT at Cryogenic Temperatures,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 891-897.
W. Zhang, Z. Zhang, F. Wang, D. J. Costinett, L. M. Tolbert, B. J. Blalock,
"Characterization and Modeling of a SiC MOSFET's Turn-on Overvoltage,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 7003-7009.
H. Gui, R. Ren, Z. Zhang, R. Chen, J. Niu, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. Choi,
"Characterization of 1.2 kV SiC Power MOSFETs at Cryogenic Temperatures,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 7010-7015.
H. Gui, R. Ren, Z. Zhang, R. Chen, J. Niu, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. Choi,
"SiC MOSFET versus Si Super Junction MOSFET - Switching Loss Comparison in Different Switching Cell Configurations,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 6146-6151.
R. Chen, J. Niu, Z. Zhang, H. Gui, R. Ren, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. Choi,
"Zero Sequence Circulating Current Analysis and Reduction in Paralleled Three-level Active Neutral Point Clamped Inverters,"
IEEE Energy Conversion Congress and Exposition, Portland, Oregon, Sept. 23-27, 2018, pp. 3024-3030.
R. Chen, Z. Dong, Z. Zhang, H. Gui, J. Niu, R. Ren, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, B. Choi,
"Core Characterization and Inductor Design Investigation at Low Temperature,"
IEEE Energy Conversion Congress and Expo., Portland, Oregon, Sept. 23-27, 2018, pp. 4218-4225.
J. Sun, X. Huang, N. N. Strain, D. Costinett, L. M. Tolbert,
"Design of a GaN-Based Single-Phase Two-Stage Rectifier for Data Centers,"
Semiconductor Research Corporation TECHCON, Austin, Texas, Sept. 16-18, 2018.
Zheyu Zhang, Handong Gui, Ren Ren, Fred Wang, Leon M. Tolbert, Daniel J. Costinett, Benjamin J. Blalock,
"Characterization of Wide Bandgap Semiconductor Devices for Cryogenically-Cooled Power Electronics in Aircraft Applications,"
AIAA/IEEE Electric Aircraft Technologies Symposium (EATS), Cincinnati, Ohio, July 12-14, 2018.
M. Smith, M. R. Starke, L. M. Tolbert,
"Autonomous Battery Identification and Health Parameterization,"
ISA Power Industry Division Symposium, Knoxville, TN, June 25-28, 2018.
J. Baxter, D. Merced, B. Ozpineci, D. Costinett, L. M. Tolbert,
"Review of Electrical Architectures and Power Requirements for Automated Vehicles,"
IEEE Transportation Electrification Conference and Exposition, Long Beach, CA, June 13-15, 2018, pp. 944-949.
J. Boles, Y. Ma, L. M. Tolbert, F. Wang,
"Frequency Support Comparison for Vanadium and Lithium-ion BESSs Using a Converter-based Grid Emulator,"
IEEE Applied Power Electronics Conference and Exposition, San Antonio, Texas, March 4-8, 2018, pp. 623-630.
Y. Cui, L. M. Tolbert, D. J. Costinett, F. Wang, B. Blalock,
"Direct 400 VDC to 1 VDC Power Conversion with Input Series Output Parallel Connection for Data Center Power Supplies,"
IEEE Applied Power Electronics Conf. and Expo., San Antonio, Texas, March 4-8, 2018, pp. 1554-1560.
J. Dyer, Z. Zhang, F. Wang, D. Costinett, L. M. Tolbert, B. J. Blalock,
"Online Condition Monitoring Based Dead-time Compensation for High Frequency SiC Voltage Source Inverter,"
IEEE Applied Power Electronics Conference and Exposition, San Antonio, Texas, March 4-8, 2018, pp. 1854-1860.
Z. Zhang, H. Gui, J. Niu, R. Chen, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock,
"High Precision Gate Signal Timing Control Based Active Voltage Balancing Scheme for Series-Connected Fast Switching Field-Effect Transistors,"
IEEE Applied Power Electronics Conference and Exposition, San Antonio, Texas, March 4-8, 2018, pp. 925-930.
R. Chen, Z. Zhang, R. Ren, J. Niu, H. Gui, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock,
"Common-mode Inductor Saturation Analysis and Design Optimization Based on Spectrum Concept,"
IEEE Applied Power Electron. Conf. and Expo., San Antonio, Texas, March 4-8, 2018, pp. 2583-2588.
R. Chen, Z. Zhang, R. Ren, J. Niu, H. Gui, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock,
"Common-mode Noise Reduction with Impedance Balancing in DC-fed Motor Drives,"
IEEE Applied Power Electronics Conference and Exposition, San Antonio, Texas, March 4-8, 2018, pp. 2515-2520.
S. Ji, M. Laitinen, X. Huang, J. Sun, B. Giewont, L. M. Tolbert, F. Wang,
"Short Circuit Characterization of 3rd Generation 10 kV SiC MOSFET,"
IEEE Applied Power Electronics Conference and Exposition, San Antonio, Texas, March 4-8, 2018, pp. 2775-2779.
2017
J. Dyer, Z. Zhang, F. Wang, D. Costinett, L. Tolbert, B. Blalock,
"Dead-Time Optimization for SiC Based Voltage Source Converters Using Online Condition Monitoring,"
IEEE Workshop on Wide Bandgap Power Devices and Applications, Albuquerque, New Mexico, Nov. 1-3, 2017, pp. 15-19.
S. Zhang, B. Liu, S. Zheng, Y. Ma, F. Wang, L. M. Tolbert,
"Three-Phase Short-Circuit Fault Implementation in Converter Based Transmission Line Emulator,"
IEEE Energy Conversion Congress and Exposition,
Cincinnati, Ohio, Oct. 1-5, 2017, pp. 2914-2920.
W. Zhang, Z. Zhang, F. Wang, D. Costinett, L. M. Tolbert, "Common Source Inductance Introduced
Self-Turn- On in MOSFET Turn-Off Transient," IEEE Applied Power Electronics Conference and
Exposition, Tampa, Florida, Mar. 26-30, 2017, pp. 837-842.
S. Ji, S. Zheng, Z. Zhang, F. Wang, L. M. Tolbert, "Protection and Temperature-Dependent Switching
Characterization of Latest Generation 10 kV SiC MOSFETs," IEEE Applied Power Electronics
Conference and Exposition, Tampa, Florida, Mar. 26-30, 2017, pp. 783-788.
Z. Zhang, C. Timms, J. Tang, R. Chen, J. Sangid, F. Wang, L. M. Tolbert, B. J. Blalock, D. Costinett,
"Characterization of High-Voltage High-Speed Switching Power Semiconductors for High Frequency
Cryogenically-Cooled Application," IEEE Applied Power Electronics Conference and Exposition,
Tampa, Florida, Mar. 26-30, 2017, pp. 1964-1969.
S. Zhang, Y. Li, B. Liu, X. Shi, L. M. Tolbert, F. Wang, "HVDC Converter Transformer Saturation in
Hybrid AC/DC System Caused by Coupled Transmission Lines," IEEE Applied Power Electronics
Conference and Exposition, Tampa, Florida, Mar. 26-30, 2017, pp. 411-415.
J. Boles, Y. Ma, W. Cao, L. M. Tolbert, F. Wang, "Battery Energy Storage Emulation in a Converter-
Based Power System Emulator," IEEE Applied Power Electronics Conference and Exposition, Tampa,
Florida, Mar. 26-30, 2017, pp. 2355-2362.
2016
J. Dyer, Z. Zhang, F. Wang, D. J. Costinett, L. M. Tolbert, B. J. Blalock, "Online Condition
Monitoring of SiC Devices Using Intelligent Gate Drive for Converter Performance Improvement,"
IEEE Workshop on Wide Bandgap Power Devices and Applications, Fayetteville, Arkansas, Nov. 7-9,
2016, pp. 182-187.
Zheyu Zhang, Xuanlyu Wu, Fred Wang, D. Costinett, L. M. Tolbert, B. Blalock, "Online Junction
Temperature Monitoring Using Turn-Off Delay Time for Silicon Carbide Power Devices," IEEE
Energy Conversion Congress and Exposition, Milwaukee, Wisconsin, Sept. 18-12, 2016, 7 pages.
Zhiyuan Shen, Handong Gui, L. M. Tolbert, "A Battery Cell Balancing Control Scheme with
Minimum Charge Transfer," IEEE Energy Conversion Congress and Exposition, Milwaukee,
Wisconsin, Sept. 18-12, 2016, 8 pages.
Yalong Li, Jin Liu, Xiaojie Shi, Fred Wang and L. M. Tolbert, "DC Fault Protection of Multi-
Terminal VSC-HVDC System with Hybrid Dc Circuit Breaker," IEEE Energy Conversion Congress
and Exposition, Milwaukee, Wisconsin, Sept. 18-12, 2016, 8 pages.
Shiqi Ji, Zhengming Zhao, Ting Lu, Fred Wang, L. Tolbert, Hualong Yu, "Active Voltage Balancing
Control for Multi HV-IGBTs in Series Connection," IEEE Energy Conversion Congress and
Exposition, Milwaukee, Wisconsin, Sept. 18-12, 2016, 6 pages.
F. Hu, L. Yang, J. Wang, Y. Ma, K. Sun, L. M. Tolbert, F. Wang, "Measurement-based Voltage
Stability Assessment and Control on CURENT Hardware Test Bed System," IEEE Power Engineering
Society General Meeting, Boston, Massachusetts, July 17-21, 2016, 5 pages.
J. Boles, B. Ozpineci, L. M. Tolbert, T. Burress, C. Ayers, J. Baxter, "Inductive Power Harvesting for
a Touchless Transmission Line Inspection System," IEEE Power Engineering Society General
Meeting, Boston, Massachusetts, July 17-21, 2016, 5 pages.
X. Shi, Y. Li, L. M. Tolbert, F. Wang, "Cascaded Droop Control for DC Overvoltage Suppression in
a Multi-terminal HVDC System under Onshore Side AC Faults," IEEE Intl. Power Electronics and
Motion Control Conference - ECCE Asia, Hefei, China, May 22-25, 2016, pp. 3627 - 3634.
M. S. Chinthavali, O. C. Onar, S. L. Campbell, L. M. Tolbert, "All-SiC Inductively Coupled Charger
with Integrated Plug-in and Boost Functionalities for PEV Applications," IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 20-24, 2016, pp. 1307-1314.
B. Liu, S. Zhang, S. Zheng, Y. Ma, F. Wang, L. M. Tolbert, "Design Considerations of Converter
Based Transmission Line Emulator," IEEE Applied Power Electronics Conference and Exposition,
Long Beach, California, March 20-24, 2016, pp. 966-973.
Z. Zhang, F. Wang, L. M. Tolbert, D. J. Costinett, B. J. Blalock, "Decoupling of Interaction between
WBG Converter and Motor Load for Switching Performance Improvement," IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 20-24, 2016, pp. 1569-1576.
Y. Ma, L. Yang, F. Wang, L. M. Tolbert, "Voltage Closed-Loop Virtual Synchronous Generator
Control of Full Converter Wind Turbine for Grid-Connected and Stand-Alone Operation," IEEE
Applied Power Electronics Conference and Exposition, Long Beach, California, March 20-24, 2016,
pp. 1261-1266.
S. Zhang, Y. Ma, L. Yang, F. Wang, L. M. Tolbert, "Development of a Hybrid Emulation Platform
Based on RTDS and Reconfigurable Power Converter-based Test-bed," IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 20-24, 2016, pp. 3121-3127.
Y. Cui, W. Zhang, L. M. Tolbert, D. J. Costinett, F. Wang, B. J. Blalock, "Soft Switching for Half
Bridge Current Doubler for High Voltage Point of Load Converter in Data Center Power Supplies,"
IEEE Applied Power Electronics Conference and Exposition, Long Beach, California, March 20-24,
2016, pp. 893-898.
X. Shi, Z. Wang, Y Li, B. Liu, L. M. Tolbert, F. Wang, "Steady State Analysis of Modular Multilvel
Converter (MMC) with Unbalanced Grid Conditions," IEEE Applied Power Electronics Conference
and Exposition, Long Beach, California, March 20-24, 2016.
2015
Z. Zhang, F. Wang, L. M. Tolbert, B. Blalock, D. Costinett, "Realization of High Speed Switching of
SiC Power Devices in Voltage Source Converters," IEEE Workshop on Wide Bandgap Power Devices
and Applications, Blacksburg, Virginia, Nov. 2-4, 2015.
S. Zheng, J. Wang, F. Yang, F. Wang, L. Tolbert, D. Costinett, "A DC Controller for Continuous
Variable Series Reactors (CVSRs)," IEEE Energy Conversion Congress and Exposition, Montreal,
Canada, Sept. 20-24, 2015, pp. 5786-5793.
M. S. Chinthavali, S. Campbell, O. C. Onar, L. M. Tolbert, "Isolated Wired and Wireless Battery Charger
with Integrated Boost Converter for PHEV and EV Applications," IEEE Energy Conversion Congress
and Exposition, Montreal, Canada, Sept. 20-24, 2015, pp. 607-614.
Y. Li, X. Shi, B. Liu, W. Lei, F. Wang, L. M. Tolbert, "Hardware Implementation of a 4-terminal HVDC
Test-bed," IEEE Energy Conversion Congress and Exposition, Montreal, Canada, Sept. 20-24, 2015,
pp. 5363-5370.
Y. Ma, L. Yang, F. Wang, L. M. Tolbert, "Short-Circuit Fault Emulation by Shunt Connected Voltage
Source Converter," IEEE Energy Conversion Congress and Exposition, Montreal, Canada, Sept. 20-
24, 2015, pp. 2622-2628.
C. Riley, L. M. Tolbert, "An Online Autonomous I-V Tracer for PV Monitoring Applications," IEEE
Power and Energy Society General Meeting, Denver, Colorado, July 26 âÃÂà31, 2015, 5 pages.
M. Chinthavali, O. Onar, S. Campbell, L. M. Tolbert, "Integrated Charger with Wireless Charging
and Boost Functions for PHEV and EV Applications," IEEE Transportation Electrification
Conference, Dearborn, Michigan, June 14-17, 2015, 8 pages.
Z. Wang, X. Shi, L. M. Tolbert, F. Wang, Z. Liang, D. J. Costinett, B. J. Blalock, "Development of a
Board-level Integrated Silicon Carbide MOSFET Power Module for High Temperature Application,"
IEEE Intl. Workshop on Integrated Power Packaging, Chicago, Illinois, May 3-6, 2015, pp. 123-126.
Z. Zhang, Z. Wang, F. Wang, L. M. Tolbert, and B. J. Blalock, "Reliability-Oriented Design of Gate
Driver for SiC Devices in Voltage Source Converter," IEEE International Workshop on Integrated
Power Packaging, Chicago, Illinois, May 3-6, 2015, pp. 20-23.
Y. Long, W. Zhang, B. Blalock, L. M. Tolbert, F. Wang, "A 10-MHz resonant gate driver design for
LLC resonant DC-DC converters using GaN devices," IEEE Applied Power Electronics Conference,
Charlotte, North Carolina, Mar. 15-19, 2015, pp. 2093-2097.
Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, "Active Gate Driver for Fast
Switching and Cross-Talk Suppression of SiC Devices in a Phase-leg Configuration," IEEE Applied
Power Electronics Conference, Charlotte, North Carolina, Mar. 15-19, 2015, pp. 774-781.
Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. J. Costinett, H. Lu, "Dead-Time Optimization of
SiC Devices for Voltage Source Converter," IEEE Applied Power Electronics Conference and
Exhibition, Charlotte, North Carolina, Mar. 15-19, 2015, pp. 1145-1152.
B. Liu, S. Zheng, Y. Ma, F. Wang, L. M. Tolbert, "Control and Implementation of Converter Based
AC Transmission Line Emulation," IEEE Applied Power Electronics Conference and Exhibition,
Charlotte, North Carolina, Mar. 15-19, 2015, pp. 1807-1814.
X. Shi, B. Liu, Z. Wang, Y. Li, L. M. Tolbert, F. Wang, "Startup Schemes for Modular Multilevel
Converters under Different Load Conditions," IEEE Applied Power Electronics Conference and
Exhibition, Charlotte, North Carolina, Mar. 15-19, 2015, pp. 2174-2180.
W. Zhang, Y. Cui, D. J. Costinett, F. Wang, L. M. Tolbert, B. J. Blalock, "Investigation of Gallium
Nitride Devices Benefits on LLC Resonant DC-DC Converter," IEEE Applied Power Electronics
Conference and Exhibition, Charlotte, North Carolina, Mar. 15-19, 2015, pp. 146-153.
Y. Cui, W. Zhang, L. M. Tolbert, D. J. Costinett, F. Wang, B. J. Blalock, "Efficiency Impact of
MOSFET Output Junction Capacitance on a High Step Down Ratio Phase Shift Full Bridge DC/DC
Converter," IEEE Applied Power Electronics Conference and Exhibition, Charlotte, North Carolina,
Mar. 15-19, 2015, pp. 2083-2089.
Y. Cui, W. Zhang, L. M. Tolbert, D. J. Costinett, F. Wang, B. J. Blalock, "Two Phase Interleaved
ISOP Connected High Step Down Ratio Phase Shift Full Bridge DC/DC Converter with GaN FETs,"
IEEE Applied Power Electronics Conference and Exhibition, Charlotte, North Carolina, Mar. 15-19,
2015, pp. 1414-1419.
B. J. Johnson, M. R. Starke, O. A. Abdelaziz, R. K. Jackson, L. M. Tolbert, "A Dynamic Simulation
Tool for Estimating Demand Response Potential from Residential Loads," IEEE Innovative Smart
Grid Technologies Conference, Feb. 17-20, 2015, Washington, DC, 5 pages.
2014
W. Zhang, B. Guo, F. Xu, Y. Cui, Y. Long, F. Wang, L. M. Tolbert, B. J. Blalock, "Wide Bandgap
Power Devices Based High Efficiency Power Converters for Data Center Application," IEEE
Workshop on Wide Bandgap Power Devices and Applications, Knoxville, Tennessee, Oct. 13-15,
2014, pp. 121-126.
Z. Liang, F. Wang, L. Tolbert, "Development of Packaging Technologies for Advanced SiC Power
Modules," IEEE Workshop on Wide Bandgap Power Devices and Applications, Knoxville, Tennessee,
Oct. 13-15, 2014, pp. 42-47.
Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. Costinett, "Understanding the Limitations and
Impact Factors of Wide Bandgap Devices' High Switching-Speed Capability in a Voltage Source
Converter," IEEE Workshop on Wide Bandgap Power Devices and Applications, Knoxville,
Tennessee, Oct. 13-15, 2014, pp. 7-12.
W. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. Costinett, "Investigation of Soft-switching
Behavior of 600 V Cascode GaN HEMT," IEEE Energy Conversion Congress and Exposition,
Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 2865-2872.
B. Trento, L. M. Tolbert, D. Costinett, "Grid Synchronization Using Fixed Filtering with Magnitude
and Phase Compensation," IEEE Energy Conversion Congress and Exposition, Pittsburgh,
Pennsylvania, Sept. 14-18, 2014, pp. 2641-2647.
Y. Xue, J. Lu, Z. Wang, L. M. Tolbert, B. J. Blalock, F. Wang, "A Compact Planar Rogowski Coil
Current Sensor for Active Current Balancing of Parallel-Connected Silicon Carbide MOSFETs," IEEE
Energy Conversion Congress and Expo., Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 4685-4690.
Z. Wang, X. Shi, L. M. Tolbert, F. Wang, Z. Liang, D. Costinett, B. Blalock, "A High Temperature
Silicon Carbide MOSFET Power Module with Integrated Silicon-on- Insulator Based Gate Drive,"
IEEE Energy Conversion Congress and Expo., Pittsburgh, PA, Sept. 14-18, 2014, pp. 4373-4380.
Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, D. Costinett, "Evaluation of Switching Performance
of SiC Devices in PWM Inverter Fed Induction Motor Drives," IEEE Energy Conversion Congress
and Exposition, Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 1597-1604.
J. Wang, L. Yang, Y. Ma, L. M. Tolbert, F. Wang, K. Tomsovic, "Static and Dynamic Power System
Load Emulation in Converter-based Reconfigurable Power Grid Emulator," IEEE Energy Conversion
Congress and Exposition, Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 4008-4015.
L. Yang, Y. Ma, J. Wang, J. Wang, X. Zhang, L. M. Tolbert, F. Wang, K. Tomsovic, "Development
of Converter Based Reconfigurable Power Grid Emulator," IEEE Energy Conversion Congress and
Exposition, Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 3990-3997.
B. Xiao, L. M. Tolbert, "Efficiency Improved and Current Balanced Three-Phase Modular Cascaded
H-Bridge Multilevel PV Inverter for Grid-Connected Applications," IEEE Energy Conversion
Congress and Exposition, Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 4661-4669.
X. Shi, Z. Wang, B. Liu, Y. Li, L. M. Tolbert, and F. Wang, "DC Impedance Modelling of a MMC-
HVDC System for DC Voltage Ripple Prediction under a Single-Line- to-Ground Fault," IEEE Energy
Conversion Congress and Exposition, Pittsburgh, Pennsylvania, Sept. 14-18, 2014, pp. 5339-5346.
B. Trento, B. Wang, K. Sun, L. M. Tolbert, "Integration of Phase-Locked Loop Based Real-Time
Oscillation Tracking in Grid Synchronized Systems," IEEE Power and Energy Society General
Meeting, Washington, DC, July 27-31, 2014.
B. J. Johnson, M. R. Starke, O. A. Abdelaziz, R. K. Jackson, L. M. Tolbert, "A MATLAB Based
Occupant Driven Dynamic Model for Predicting Residential Power Demand," IEEE Transmission and
Distribution Conference and Exposition, Chicago, Illinois, April 14-17, 2014, 5 pages.
L. GopiReddy, L. M. Tolbert, B. Ozpineci, "Operating Parameter Based Wirebond Model for a Power
Module," IEEE Applied Power Electron. Conf., Ft. Worth, Texas, March 16-20, 2014, pp. 3502-3506.
B. Guo, F. Xu, F. Wang, L. M. Tolbert, B. J. Blalock, "Overvoltage Protection Scheme for Three-
Phase Current Source Converter Built with SiC MOSFETs," IEEE Applied Power Electronics
Conference and Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 3469-3476.
Y. Cui, W. Zhang, L. M. Tolbert, F. Wang, B. J. Blalock, "Direct 400 V to 1 V Converter for Data
Center Power Supplies Using GaN FETs," IEEE Applied Power Electronics Conference and
Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 3460-3464.
Y. Cui, F. Xu, W. Zhang, B. Guo, L. M. Tolbert, F. Wang, B. J. Blalock, L. Jenkins, C. Wilson, J.
Aggas, B. Rhea, J. Moses, R. Dean, "High Efficiency Data Center Power Supply Using Wide Band
Gap Power Devices," IEEE Applied Power Electronics Conference and Exposition, Ft. Worth, Texas,
March 16-20, 2014, pp. 3437-3442.
Y. Ma, L. Yang, J. Wang, F. Wang, L. M. Tolbert, "Emulating Full-Converter Wind Turbine by a
Single Converter in a Multiple Converter Based Emulation System," IEEE Applied Power Electronics
Conference and Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 3042-3047.
Z. Zhang, B. Guo, F. Wang, L. M. Tolbert, B. J. Blalock, Z. Liang, P. Ning, "Impact of Ringing on
Switching Losses of Wide Band-Gap Devices in a Phase-Leg Configuration," IEEE Applied Power
Electronics Conference and Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 2542-2549.
Z. Zhang, B. Guo, F. Wang, L. M. Tolbert, B. J. Blalock, Z. Liang, P. Ning, "Methodology for
Switching Characterization Evaluation of Wide Band-Gap Devices in a Phase-Leg Configuration,"
IEEE Applied Power Electronics Conference, Ft. Worth, Texas, March 16-20, 2014, pp. 2534-2541.
L. GopiReddy, . M. Tolbert, B. Ozpineci, J. Pinto, "Rainflow Algorithm Based Lifetime Estimation
of Power Semiconductors in Utility Applications," IEEE Applied Power Electronics Conference and
Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 2293-2299.
Y. Long, W. Zhang, B. J. Blalock, L. M. Tolbert, F. Wang, "A 10-MHz Resonant Gate Driver Design
for LLC Resonant DC-DC Converters Using GaN Devices," IEEE Applied Power Electronics
Conference and Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 2093-2097.
Y. Xue, J. Lu, Z. Wang, L. M. Tolbert, B. J. Blalock, F. Wang, "Active Compensation of Current
Unbalance in Paralleled Silicon Carbide MOSFETs," IEEE Applied Power Electronics Conference and
Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 1471-1477.
Z. Xu, W. Zhang, F. Xu, F. Wang, L. M. Tolbert, B. J. Blalock, "Investigation of 600 V GaN HEMTs
for High Efficiency and High Temperature Applications," IEEE Applied Power Electronics
Conference and Exposition, Ft. Worth, Texas, March 16-20, 2014, pp. 131-136.
F. Xu, B. Guo, Z. Xu, L. M. Tolbert, F. Wang, B. J. Blalock, "High Efficiency Paralleled Three-Phase
Current Source Front-End Rectifiers for Data Center Power Supplies with Current Balancing and Hot-
Swap," IEEE Applied Power Electronics Conference and Exposition, Ft. Worth, Texas, March 16-20,
2014, pp. 900-905.
B. J. Johnson, M. R. Starke, O. A. Abdelaziz, R. K. Jackson, L. M. Tolbert, "A Method for Modeling
Household Occupant Behavior to Simulate Residential Energy Consumption," IEEE PES Innovative
Smart Grid Technologies Conference, Washington, DC, February 17-20, 2014, 5 pages.
2013
Y. Cui, L. M. Tolbert, "High Step Down Ratio (400 V to 1 V) Phase Shift Full Bridge DC/DC
Converter for Data Center Power Supplies with GaN FETs", IEEE Workshop on Wide Bandgap
Devices and Applications, Columbus, Ohio, Oct. 27-29, 2013, pp. 23-27.
J. Wang, L. Yang, C. Blalock, and L. M. Tolbert, "Flywheel energy storage emulation using
reconfigurable hardware test-bed of power converters", Proc. Electrical Energy Storage
Applications and Technologies Technical Conference, San Diego, California, Oct. 20-23, 2013.
X. Shi, Z. Wang, L. M. Tolbert, F. Wang, "A Comparison of Phase Disposition and Phase Shift PWM
Strategies for Modular Multilevel Converters", IEEE Energy Conversion Congress and Exposition,
Denver, Colorado, Sept. 15-19, 2013, pp. 4089-4096.
X. Shi, Z. Wang, L. M. Tolbert, F. Wang, "Analysis and Control of DC Voltage Ripple for Modular
Multilevel Converters under Single Line to Ground Fault", IEEE Energy Conversion Congress and
Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 4112-4118.
Y. Ma, L. Yang, J. Wang, X. Shi, F. Wang, L. M. Tolbert, "Circulating Current Control and
Reduction in a Paralleled Converter Test-bed System", IEEE Energy Conversion Congress and
Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 5426-5432.
W. Cao, Y. Ma, J. Wang, L. Yang, J. Wang, F. Wang, L. M. Tolbert, "Two-Stage PV Inverter System
Emulator in Converter Based Power Grid Emulation System", IEEE Energy Conversion Congress and
Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 4518-4525.
L. Yang, X. Zhang, Y. Ma, J. Wang, L. Hang, K. Lin, L. M. Tolbert, F. Wang, K. Tomsovic,
"Stability Analysis of Inverter Based Generator Emulator in Test-bed for Power Systems", IEEE
Energy Conversion Congress and Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 5410-5417.
W. Zhang, Z. Xu, Z. Zhang, F. Wang, L. M. Tolbert, B. Blalock, "Evaluation of 600 V Cascode GaN
HEMT in Device Characterization and All-GaN- Based LLC Resonant Converter", IEEE Energy
Conversion Congress and Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 3571-3578.
F. Xu, B. Guo, Z. Xu, L. M. Tolbert, F. Wang, B. Blalock, "DC-Link Current Control Scheme for
Paralleled Three-Phase Current Source Rectifiers in High Efficiency Power Supply System", IEEE
Energy Conversion Congress and Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 3348-3355.
Z. Zhang, F. Wang, L. M. Tolbert, B. Blalock, "A Gate Assist Circuit for Cross Talk Suppression of
SiC Devices in a Phase-leg Configuration", IEEE Energy Conversion Congress and Exposition,
Denver, Colorado, Sept. 15-19, 2013, pp. 2536-2543.
Y. Xue, J. Lu, Z. Wang, L. M. Tolbert, B. Blalock, F. Wang, "Active Current Balancing for Parallel-
Connected Silicon Carbide MOSFETs", IEEE Energy Conversion Congress and Exposition, Denver,
Colorado, Sept. 15-19, 2013, pp. 1563-1569.
Z. Wang, X. Shi, Y. Xue, L. M. Tolbert, B. Blalock, F. Wang, "Design and Performance Evaluation
of Overcurrent Protection Schemes for Silicon Carbide (SiC) Power MOSFETs", IEEE Energy
Conversion Congress and Exposition, Denver, Colorado, Sept. 15-19, 2013, pp. 5418-5425.
S. Liu, L. Hang, L. M. Tolbert, Z. Lu, "A Novel Strategy for Vienna-type Rectifier With Light
Unbalanced Input Voltage", IEEE Energy Conversion Congress and Exposition, Denver, Colorado,
Sept. 15-19, 2013, pp. 4253-4257.
A. Sanchez-Ruiz, G. Abad, S. Alvarez, L. M. Tolbert, "Modulation Selection Procedure Applied to a
High-Power Adjustable High-Speed Drive", European Conference on Power Electronics and
Applications (IEEE ECCE Europe), Lille, France, September 3-5, 2013, 10 pages.
Y. Xue, Z. Wang, L. M. Tolbert, B. J. Blalock, "Analysis and Optimization of Buffer Circuits in High
Current Gate Drive", IEEE Transportation Electrification Conference and Expo, Dearborn, Michigan,
June 16-19, 2013, 6 pages.
X. Shi, Z. Wang, L. M. Tolbert, F. Wang, "Modular Multilevel Converters with Integrated Arm
Inductors for High Quality Current Waveforms", IEEE Energy Conversion Congress and Exposition
Asia, Melbourne, Australia, June 3-6, 2013, pp. 636-642.
B. Li, M. Zhang, L. Huang, L. Hang, L. M. Tolbert, "A Robust Multi-Resonant PR Regulator for
Three-Phase Grid-Connected VSI Using Direct Pole Placement Design Strategy", IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 17-21, 2013, pp. 960-966.
B. Li, L. Hang, L. M. Tolbert, "A New Optimized Pole Placement Strategy of Grid-Connected
Inverter with LCL-Filter Based on State Variable Feedback and State Observer", IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 17-21, 2013, pp. 2900-2906.
M. Zhang, B. Li, L. Huang,W. Yao, Z. Lu, L. Hang, L. M. Tolbert, "A Novel Strategy for Three-
phase/switch/level (Vienna) Rectifier under Severe Unbalanced Grids", IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 17-21, 2013, pp. 1826-1832.
Z. Zhang, F. Wang, L. M. Tolbert, B. Blalock, "A Novel Gate Assist Circuit for Cross Talk
Mitigation of SiC Power Devices in a Phase-leg Configuration", IEEE Applied Power Electronics
Conference and Exposition, Long Beach, California, March 17-21, 2013, pp. 1259-1265.
Z. Wang, X. Shi, L. M. Tolbert, B. Blalock, "Switching Performance Improvement of IGBT Modules
Using an Active Gate Driver", IEEE Applied Power Electronics Conference and Exposition, Long
Beach, California, March 17-21, 2013, pp. 1266-1273.
Z. Wang, X. Shi, L. M. Tolbert, B. Blalock, M. Chinthavali, "A Fast Overcurrent Protection Scheme
for IGBT Modules Through Dynamic Fault Current Evaluation", IEEE Applied Power Electronics
Conference and Exposition, Long Beach, California, March 17-21, 2013, pp. 577-583.
R. L. Greenwell, B. M. McCue, B. J. Blalock, L. M. Tolbert, S. K. Islam, "High-Temperature SOI-
Based Gate Driver IC for WBG Power Switches", IEEE Applied Power Electronics Conference and
Exposition, Long Beach, California, March 17-21, 2013, pp. 1768-1775.
K. Shen, B. Xiao, J. Mei, L. M. Tolbert, J. Wang, X. Cai, Y. Ji, "A Modulation Reconfiguration
Based Fault-Tolerant Control Scheme for Modular Multilevel Converters", IEEE Applied Power
Electronics Conference and Exposition, Long Beach, California, March 17-21, 2013, pp. 3251-3255.
B. Xiao, L. Hang, L. M. Tolbert, "Control of Three-Phase Cascaded Voltage Source Inverter for Grid-
Connected Photovoltaic Systems", IEEE Applied Power Electronics Conference and Exposition, Long
Beach, California, March 17-21, 2013, pp. 291-296.
B. Xiao, L. Hang, C. Riley, L. M. Tolbert, B. Ozpineci, "Three-Phase Modular Cascaded H-Bridge
Multilevel Inverter with Individual MPPT for Grid-Connected Photovoltaic Systems", IEEE Applied
Power Electronics Conference and Exposition, Long Beach, Calif., March 17-21, 2013, p. 468-474.
L. Yang, X. Zhang, Y. Ma, J. Wang, L. Hang, K. Lin, L. M. Tolbert, F. Wang, K. Tomsovic,
"Hardware Implementation and Control Design of Generator Emulator in Multi-Converter System",
IEEE Applied Power Electronics Conference and Exposition, Long Beach, California, March 17-21,
2013, pp. 2316-2323.
X. Shi, Z. Wang, Y. Ma, L. Hang, L. M. Tolbert, F. Wang, "Modeling and Control of an LCL Filter
Based Three-Phase Active Rectifier in Grid Emulator", IEEE Applied Power Electronics Conference
and Exposition, Long Beach, California, March 17-21, 2013, pp. 992-998.
J. Wang, Y. Ma, L. Yang, L. M. Tolbert, F. Wang, "Power Converter-based Three-phase
Induction Motor Load Emulator", IEEE Applied Power Electronics Conference and Exposition, Long
Beach, California, March 17-21, 2013, pp. 3270-3274.
W. Zhang, Y. Long, Y. Long, F. Wang, L. M. Tolbert, B. Blalock, S. Henning, J. Moses, R. Dean,
"Impact of Planar Transformer Winding Capacitance on Si-based and GaN-based LLC Resonant
Converter", IEEE Applied Power Electronics Conference and Exposition, Long Beach, California,
March 17-21, 2013, pp. 1668-1674.
B. Guo, F. Xu, Z. Zhang, Z. Xu, F. Wang, L. M. Tolbert, B. J. Blalock, "Compensation of Input
Current Distortion in Three-Phase Buck Rectifiers," IEEE Applied Power Electronics Conference and
Exposition, Long Beach, California, March 17-21, 2013, pp. 930-938.
F. Xu, B. Guo, Z. Xu, L. M. Tolbert, F. Wang, B. Blalock, "SiC Based Current Source Rectifier
Paralleling and Circulating Current Suppression," IEEE Applied Power Electronics Conference and
Exposition, Long Beach, California, March 17-21, 2013, pp. 402-409.
2012
L. GopiReddy, L. M. Tolbert, B. Ozpineci,
"Lifetime Prediction of IGBT in a STATCOM Using Modified-Graphical Rainflow Counting Algorithm,"
IEEE Industrial Electronics Society Annual Conference,
Montreal, Canada, October 25-28, 2012.
B. Li, L. Hang, L. M. Tolbert, Z. Lu,
"Equivalent of SVM and Carrier-based PWM in Three Phase/Wire/Level VIENNA Rectifier for Unbalanced-Load Control,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 988-995.
J. Wang, L. Yang, X. Zhang, K. Lin, X. Shi, L. Hang, L. M. Tolbert, F. Wang, K. Tomsovic,
"Regenerative Power Converters Representation of Grid Control and Actuation Emulator,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 2460-2465.
W. Zhang, Y. Long, Z. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock, S. Henning, C. Wilson, R. Dean,
"Evaluation and Comparison of Silicon and Gallium Nitride Power Transistors in LLC Resonant Converter,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 1362-1366.
B. Xiao, K. Shen, J. Mei, F. Filho, L. M. Tolbert,
"Control of Cascaded H-Bridge Multilevel Inverter with Individual MPPT for Grid-Connected Photovoltaic Generators,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 3715-3721.
Z. Zhang, W. Zhang, F. Wang, L. M. Tolbert, B. J. Blalock,
"Analysis on the Switching Speed Limitation of Wide Band-gap Devices in the Phase-leg Configuration,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 3950-3955.
F. Xu, B. Guo, L. M. Tolbert, F. Wang, B. Blalock,
"Design and Performance of an All-SiC Three-Phase Buck Rectifier for High Efficiency Data Center Power Supplies,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 2927-2933.
Y. Xu, H. Li, L. M. Tolbert,
"Inverter-Based Microgrid Control and Stable Islanding Transition,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 2374-2380.
B. Diong, L. Dofflemyer, B. Xiao, L. M. Tolbert, F. Filho,
"Hybrid Single-Phase Multilevel Inverters as Renewable Energy Interfaces Considering THD, Modularity and Capacitor Recharging,"
IEEE Energy Conversion Congress and Exposition,
Raleigh, North Carolina, September 15-20, 2012, pp. 1540-1547.
F. J. T. Filho, L. M. Tolbert, B. Ozpineci,
"Real Time Selective Harmonic Minimization for Multilevel Inverters Using Genetic Algorithm and Artificial Neural Network Angle Generation,"
IEEE International Power Electronics and Motion Control Conference (ECCE Asia),
Harbin, China, June 2-5, 2012, pp. 895-899.
L. Hang, L. M. Tolbert, G. Yan, J. Chen,
"A High Power Density Three-Phase PFC Converter Based on VIENNA Topology,"
IEEE International Power Electronics and Motion Control Conference (ECCE Asia),
Harbin, China, June 2-5, 2012, pp. 1034-1037.
Z. Wang, X. Shi, Y. Xue, L. M. Tolbert, B. Blalock,
"A Gate Drive Circuit of High Power IGBTs for Improved Turn-on Characteristics under Hard Switching Conditions,"
IEEE Workshop on Control and Modeling for Power Electronics,
Kyoto, Japan, June 10-13, 2012, 7 pages.
L. Huang, B. Li, Z. Lu, L. Hang, L. Tolbert,
"PR Controller for Grid-Connected Inverter Control Using Direct Pole Placement Strategy,"
IEEE International Symposium on Industrial Electronics,
Hangzhou, China, May 28-31, 2012, pp. 469-474.
B. Li, L. Hang, L. M. Tolbert, W. Yao, Z. Lu,
"Equivalence of SVM and Carrier-based PWM in Three Phase/Wire/Level VIENNA Rectifier and Unbalanced-Load Ability,"
IEEE International Symposium on Industrial Electronics,
Hangzhou, China, May 28-31, 2012, pp. 328-333.
Y. Cui, M. Chinthavali, F. Xu, L. M. Tolbert,
"Characterization and Modeling of Silicon Carbide Power Devices and Paralleling Operation,"
IEEE International Symposium on Industrial Electronics,
Hangzhou, China, May 28-31, 2012, pp. 228-233.
B. M. McCue, R. L. Greenwell, M. I. Laurence, B. J. Blalock, S. K. Islam, L. M. Tolbert,
"SOI Based Voltage Regulator for High-Temperature Applications,"
IMAPS International Conference on High Temperature Electronics,
Albuquerque, New Mexico, May 8-10, 2012, 7 pages.
R. L. Greenwell, B. M. McCue, M. I. Laurence, C. Fandrich, B. J. Blalock, L. M. Tolbert, S. K. Islam,
"SOI-Based Integrated Gate Driver Circuit for High-Temperature Applications,"
IMAPS International Conference on High Temperature Electronics,
Albuquerque, New Mexico, May 8-10, 2012, 12 pages.
M. Pickelsimer, L. M. Tolbert, B. Ozpineci. J. Miller,
"Simulation of a Wireless Power Transfer System for Electric Vehicles with Power Factor Correction," IEEE International Electric Vehicle Conference,
Greenville, South Carolina, March 4-8, 2012, 6 pages.
M. Zhang, B. Li, L. Hang, L. M. Tolbert, Z. Lu,
"Performance Study for High Power Density Three-Phase Vienna PFC Rectifier by Using SVPWM Control Method,"
IEEE Applied Power Electronics Conference,
Orlando, Florida, Feb. 5-9, 2012, pp. 1187-1191.
L. GopiReddy, L. M. Tolbert, B. Ozpineci, Y. Xu, T. Rizy,
"Reliability of IGBT in a STATCOM for Harmonic Compensation and Power Factor Correction,"
IEEE Applied Power Electronics Conference,
Orlando, Florida, Feb. 5-9, 2012, pp. 783-788.
Y. Cui, M. Chinthavali, L. M. Tolbert,
"Temperature Dependent PSpice Model of Silicon Carbide Power MOSFET,"
IEEE Applied Power Electronics Conference,
Orlando, Florida, Feb. 5-9, 2012, pp. 1698-1704.
F. Xu, B. Guo, L. M. Tolbert, F. Wang, B. J. Blalock,
"Evaluation of SiC MOSFETs for a High Efficiency Three-Phase Buck Rectifier,"
IEEE Applied Power Electronics Conference,
Orlando, Florida, Feb. 5-9, 2012, pp. 1762-1769.
2011
D. Jiang, F. Xu, F. Wang, L. M. Tolbert, T. J. Han, S. J. Kim,
"Experimental Study of Power Module with SiC Devices,"
IEEE Energy Conversion Congress and Exposition,
Phoenix, Arizona, Sept. 18-22, 2011.
L. GopiReddy, L. M. Tolbert, B. Ozpineci, Y. Xu, T. Rizy,
"Impact of Power Factor Correction and Harmonic Compensation by STATCOM on Converter Temperature,"
IEEE Energy Conversion Congress and Exposition,
Phoenix, Arizona, Sept. 18-22, 2011.
F. Xu, D. Jiang, J. Wang, F. Wang, L. M. Tolbert, T. J. Han, S. J. Kim,
"Characterization of a High Temperature Multichip SiC JFET-Based Module,"
IEEE Energy Conversion Congress and Exposition,
Phoenix, Arizona, Sept. 18-22, 2011.
F. Filho, L. Tolbert, B. Ozpineci,
"Multilevel Cascade H-bridge Inverter DC Voltage Estimation Through Output Voltage Sensing,"
IEEE Energy Conversion Congress and Exposition,
Phoenix, Arizona, Sept. 18-22, 2011.
B. Xiao, F. Filho, L. M. Tolbert,
"Single-Phase Cascaded H-Bridge Multilevel Inverter with Nonactive Power Compensation for Grid-Connected Photovoltaic Generators,"
IEEE Energy Conversion Congress and Exposition,
Phoenix, Arizona, Sept. 18-22, 2011.
F. Xu, L. M. Tolbert, Y. Xu,
"Critical Evaluation of FBD, PQ and Generalized Non-Active Power Theories,"
European Conference on Power Electronics and Applications (IEEE ECCE Europe),
Birmingham, United Kingdom, Aug. 30 - Sept. 1, 2011.
M. Kisacikoglu, B. Ozpineci, L. M. Tolbert,
"Reactive Power Operation Analysis of a Single-Phase EV/PHEV Bidirectional Battery Charger,"
,
Jeju, Korea, May 30 - June 3, 2011.
F. Xu, D. Jiang, F. Wang, L. M. Tolbert, T. J. Han, J. Nagashima, S. J. Kim,
"High Temperature Packaging of 50 kW Three-Phase Module,"
,
Jeju, Korea, May 30 - June 3, 2011.
F. Xu, J. Wang, D. Jiang, F. Wang, L. M. Tolbert, T. J. Han, F. Flett,
"Design and Characterization of a Three-Phase Multichip SiC JFET Module,"
International Exhibition and Conference for Power Conversion in Intelligent Motion and Power Quality (PCIM Europe 2011),
Nuremburg, Germany, May 8-10, 2011.
M. Kisacikoglu, B. Ozpineci, L. M. Tolbert, F. Wang,
"Single-phase Inverter Design for V2G Reactive Power Compensation,"
IEEE Applied Power Electronics Conference,
Fort Worth, Texas, March 6-10, 2011, pp. 808-814.
R. L. Greenwell, B. M. McCue, L. Zuo, M. A. Huque, L. M. Tolbert, B. J. Blalock, S. K. Islam,
"SOI-Based Integrated Circuits for High-Temperature Power Electronics Applications,"
IEEE Applied Power Electronics Conference,
Fort Worth, Texas, March 6-10, 2011, pp. 836-843.
M. Chinthavali, P. Ning, Y. Cui, L. M. Tolbert,
"Investigation on the Parallel Operation of Discrete SiC BJTs and JFETs,"
IEEE Applied Power Electronics Conference,
Fort Worth, Texas, March 6-10, 2011, pp. 1076-1083.
S. Li, L. M. Tolbert, F. Wang, F. Z. Peng,
"P-cell and N-cell based IGBT Module: Layout Design, Parasitic Extraction, and Experimental Verification,"
IEEE Applied Power Electronics Conference,
Fort Worth, Texas, March 6-10, 2011, pp. 372-378.
H. Qi, Y. Liu, F. Li, J. Luo, L. He, K. Tomsovic, Leon Tolbert, Q. Cao,
"Increasing the Resolution of Wide-Area Situational Awareness of the Power Grid through Event Unmixing,"
IEEE Hawaii International Conference on System Science,
Hawaii, Jan. 4-7, 2011, 8 pages.
2010
M. Kisacikoglu, B. Ozpineci, L. M. Tolbert,
"V2G Reactive Power Compensation Using a PHEV Bidirectional Charger Interface Rated at Level 1, 2, and 3 Charging Standards,"
IEEE Energy Conversion Congress and Exposition,
Atlanta, Georgia, Sept. 12-16, 2010.
S. Khomfoi, L. M. Tolbert,
"A Hybrid Cascaded Multilevel Inverter Application for Renewable Energy Resources Including a Reconfiguration Technique,"
IEEE Energy Conversion Congress and Exposition,
Atlanta, Georgia, Sept. 12-16, 2010.
S. Li, L. M. Tolbert, F. Wang, F. Z. Peng,
"Reduction of Stray Inductance in Power Electronic Modules Using Basic Switching Cells,"
IEEE Energy Conversion Congress and Exposition,
Atlanta, Georgia, Sept. 12-16, 2010.
F. Filho, L. M. Tolbert, Y. Cao, B. Ozpineci,
"Real Time Selective Harmonic Minimization for Multilevel Inverters Connected to Solar Panels Using Artificial Neural Network Angle Generation,"
IEEE Energy Conversion Congress and Exposition,
Atlanta, Georgia, Sept. 12-16, 2010.
S. Lee, L. M. Tolbert,
"Study of Various Slanted Air-gap Structures of Interior Permanent Magnet Synchronous Motor with Brushless Field Excitation,"
IEEE Energy Conversion Congress and Exposition,
Atlanta, Georgia, Sept. 12-16, 2010.
L. Zuo, R. Greenwell, S. K. Islam, M. A Huque, B. J. Blalock, L. M. Tolbert,
"A Universal SOI Based High Temperature Gate Driver Integrated Circuit for SiC Power Switches with On-Chip Short Circuit Protection,"
IEEE Lester Eastman Conference on High Performance Devices,
Troy, New York, August 3-5, 2010.
O. Aluko, T. Smith, L. M. Tolbert,
"Behavior of Doubly-Fed Induction Generator Under Nearby Wind Plant Fault,"
IEEE Power and Energy Society General Meeting,
Minneapolis, Minnesota, July 28-31, 2010, 5 pages.
M. Chinthavali, L. M. Tolbert, H. Zhang, B. Ozpineci, J. H. Han, F. Barlow,
"High Power SiC Modules for HEVs and PHEVs,"
IEEE International Power Electronics Conference,
Sapporo, Japan, June 21-24, 2010, pp. 1842-1848.
L. Zuo, S. K. Islam, M. A. Huque, B. J. Blalock, L. M. Tolbert,
"A Universal BCD-on-SOI Based High Temperature Short Circuit Protection for SiC Power Switches,"
IMAPS International Conference on High Temperature Electronics (HITEC),
Albuquerque, New Mexico, May 11-13, 2010, 6 pages.
C. Su, B. J. Blalock, S. K. Islam, L. Zuo, L. M. Tolbert,
"A High-Temperature Folded-Cascode Operational Transconductance Amplifier in 0.8-ÃÂõm BCD-on-SOI,"
IMAPS International Conference on High Temperature Electronics (HITEC),
Albuquerque, New Mexico, May 11-13, 2010, 6 pages.
M. Kisacikoglu, B. Ozpineci, L. M. Tolbert,
"Examination of a PHEV Bidirectional Charger System for V2G Reactive Power Compensation,"
IEEE Applied Power Electronics Conference,
Palm Springs, California, Feb. 21-25, 2010, pp. 458-465.
F. Filho, Yue Cao, L. M. Tolbert,
ÃÂÃÂ11-level Cascaded H-bridge Grid-tied Inverter Interface with Solar Panels,ÃÂÃÂ
IEEE Applied Power Electronics Conference,
Palm Springs, California, Feb. 21-25, 2010, pp. 968-972.
H. Zhang, M. Chinthavali, L. M. Tolbert, J. H. Han, F. Barlow,
"18 kW Three Phase Inverter System Using Hermetically Sealed SiC Phase-Leg Power Modules,"
IEEE Applied Power Electronics Conference,
Palm Springs, California, Feb. 21-25, 2010, pp. 1108-1112.
2009
J. N. Chiasson, Z. Du, B. Ozpineci, L. M. Tolbert,
"High Dynamic Performance Programmed PWM Control of a Multilevel Inverter with Capacitor DC Sources,"
IEEE Control and Decision Conference,
Shanghai, China, December 16-18, 2009, 8 pages.
C. Su, M. A Huque, B. J. Blalock, S. K. Islam, L. M. Tolbert,
"A High-Temperature, High Voltage Linear Regulator in 0.8µm SOI BCDMOS,"
IMAPS International Symposium on Microelectronics,
San Jose, California, Nov. 1-5, 2009, 8 pages.
M. A Huque, L. M. Tolbert, B. J. Blalock, S. K. Islam,
"A High-Temperature, High-Voltage SOI Gate Driver IC with High Output Current and On-Chip Low-Power Temperature Sensor,"
IMAPS International Symposium on Microelectronics,
San Jose, California, Nov. 1-5, 2009, 8 pages.
M. Chinthavali, H. Zhang, L. M. Tolbert, B. Ozpineci,
"Update on SiC-Based Inverter Technology,"
10th Brazilian Power Electronics Conference (COBEP 2009),
Bonito, Brazil, Sept. 27 ÃÂñ Oct. 1, 2009, pp. 71-79.
S. T. Lee, L. M. Tolbert,
"Analysis of Slanted Air-gap Structure of Interior Permanent Magnet Synchronous Motor with Brushless Field Excitation,"
IEEE Energy Conversion Congress and Exposition,
San Jose, California, Sept. 20-24, 2009, 6 pages.
S. T. Lee, L. M. Tolbert,
"Analytical Method of Torque Calculation for Interior Permanent Magnet Synchronous Machines,"
IEEE Energy Conversion Congress and Exposition,
San Jose, California, Sept. 20-24, 2009, 5 pages.
S. Li, B. Ozpineci, L. M. Tolbert,
"Evaluation of a Current Source Active Power Filter to Reduce the DC Bus Capacitor in a Hybrid Electric Vehicle Traction Drive,"
IEEE Energy Conversion Congress and Exposition,
San Jose, California, Sept. 20-24, 2009, 6 pages.
W. Qian, F. Z. Peng, L. M. Tolbert,
"Development of a 55 kW 3X DC-DC Converter for HEV Systems,"
IEEE International Vehicle Power and Propulsion Conference,
Dearborn, Michigan, Sept. 7-11, 2009, 7 pages.
F. Z. Peng, Y. W. Li, L. M. Tolbert,
"Control and Protection of Power Electronics Interfaced Distributed Generation Systems in a Customer-Driven Microgrid,"
IEEE Power and Energy Society General Meeting,
Alberta, Canada, July 26-30, 2009, 8 pages.
H. Zhang, L. M. Tolbert,
"Efficiency of SiC JFET-Based Inverters,"
IEEE Conference on Industrial Electronics and Applications,
Xi'an, China, May 25-27, 2009, pp. 2056-2059.
L. M. Tolbert, F. Z. Peng, F. H. Khan, S. Li,
"Switching Cells and Their Implications and Applications in Power Electronic Circuits,"
IEEE International Conference on Power Electronics and Motion Control,
Wuhan, China, May 17-20, 2009, pp. 773-779.
S. T. Lee, T. A. Burress, L. M. Tolbert,
"Power-Factor and Torque Calculation under Consideration of Cross Saturation of the Interior Permanent Magnet Synchronous Motor with Brushless Field Excitation,"
IEEE International Electric Machines and Drives Conference,
Miami, Florida, May 3-6, 2009.
M. A. Huque, S.K. Islam, B. J. Blalock, L. M. Tolbert,
"Diode Leakage Current Based Low Power, On-chip High Temperature Sensor Circuit,"
Connecticut Symposium on Microelectronics & Optoelectronics,
New Haven, Connecticut, March 11, 2009.
W. Qian, F. Z. Peng, M. Shen, L. M. Tolbert,
"3X DC-DC Multiplier/Divider for HEV Systems,"
IEEE Applied Power Electronics Conference,
Washington, DC, Feb. 15-19, 2009, pp. 1109-1114.
2008
H. Zhang, L. M. Tolbert,
"SiC's Potential Impact on the Design of Wind Generation System,"
IEEE Industrial Electronics Society Annual Conference,
Orlando, Florida, November 10-13, 2008, pp. 2231-2235.
H. Liu, L. M. Tolbert, B. Ozpineci, Z. Du,
"Comparison of Fundamental Frequency and PWM Methods Applied on a Hybrid Cascaded Multilevel Inverter,"
IEEE Industrial Electronics Society Annual Conference,
Orlando, Florida, November 10-13, 2008, pp. 3233-3237.
H. Zhang, L. M. Tolbert, B. Ozpineci,
"Impact of SiC Devices on Hybrid Electric and Plug-in Hybrid Electric Vehicles,"
IEEE Industry Applications Society Annual Meeting,
Edmonton, Canada, October 5-9, 2008.
J. S. Hsu, S. T. Lee, L. M. Tolbert,
"High-Strength Undiffused Brushless (HSUB) Machine,"
IEEE Industry Applications Society Annual Meeting,
Edmonton, Canada, October 5-9, 2008.
H. Liu, L. M. Tolbert, B. Ozpineci, Z. Du,
"Hybrid Multilevel Inverter with Single DC Source,"
IEEE Midwest Symposium on Circuits and Systems,
Knoxville, Tennessee, August 10-13, 2008, pp. 538-541.
M. R. Starke, F. Li, L. M. Tolbert,
"AC vs. DC distribution: Maximum transfer capability,"
IEEE Power Engineering Society General Meeting,
Pittsburgh, PA, July 20-24, 2008, 6 pages.
H. Liu, L. M. Tolbert, S. Khomfoi, B. Ozpineci, Z. Du,
"Hybrid Cascaded Multilevel Inverter with PWM Method,"
IEEE Power Electronics Specialists Conference,
Rhodes, Greece, June 15-19, 2008, pp. 162-165.
F. H. Khan, L. M. Tolbert,
"Generating Isolated Outputs in a Multilevel Modular Capacitor Clamped DC-DC Converter (MMCCC) for Hybrid Electric and Fuel Cell Vehicles,"
IEEE Power Electronics Specialists Conference,
Rhodes, Greece, June 15-19, 2008, pp. 967-973.
F. J. T. Filho, T. H. A. Mateus, H. Z. Maia, B. Ozpineci, J. O. P. Pinto, L. M. Tolbert,
"Real-Time Selective Harmonic Minimization in Cascaded Multilevel Inverters with Varying DC Sources,"
IEEE Power Electronics Specialists Conference,
Rhodes, Greece, June 15-19, 2008, pp. 4302-4306.
M. A Huque, S. K. Islam, B. J. Blalock, C. Su, R. Vijayaraghavan, L. M. Tolbert,
"Silicon-on-Insulator Based High-Temperature Electronics for Automotive Applications,"
IEEE International Symposium on Industrial Electronics,
Cambridge, England, June 30 ÃÂñ July 2, 2008.
M. A Huque, B. J. Blalock, C. Su, R. Vijayaraghavan, S. K. Islam, L. M. Tolbert,
"SOI-Based Integrated Circuits for High-Temperature Applications,"
IMAPS International Conference on High Temperature Electronics,
Albuquerque, New Mexico, May 12-15, 2008.
M. Starke, L. M. Tolbert, B. Ozpineci,
"AC vs. DC Distribution: A Loss Comparison,"
IEEE PES Transmission and Distribution Conference and Exposition,
Chicago, Illinois, April 21-24, 2008, 7 pages.
W. Zhang, F. Li, L. M. Tolbert,
"Voltage Stability Constrained Optimal Power Flow (VSCOPF) with Two Sets of Variables (TSV) for Reactive Power Planning,"
IEEE PES Transmission and Distribution Conference and Exposition,
Chicago, Illinois, April 21-24, 2008, 6 pages.
W. Zhang, F. Li, L. M. Tolbert,
"Var Compensation Economic Benefits Considering Generator Marginal Cost,"
International Conference on Electric Utility Deregulation and Restructuring and Power Technologies,
Nanjing, China, April 6-9, 2008.
L. M. Tolbert, H. Zhang, B. Ozpineci, M. Chinthavali,
"SiC-Based Power Converters,"
Materials Research Society Spring Meeting, Symposium D,
San Francisco, California, March 24-27, 2008.
B. Ozpineci, M. Chinthavali, L. M. Tolbert, H. Zhang,
"SiC Power Electronics Research at ORNL,"
GOMACTech,
Las Vegas, Nevada, March 17-20, 2008.
F. H. Khan, L. M. Tolbert,
"Universal Multilevel DC-DC Converter with Variable Conversion Ratio, High Compactness Factor and Limited Isolation Feature,"
IEEE Applied Power Electronics Conference,
Austin, Texas, February 24-28, 2008, pp. 17-23.
E. Ozdemir, S. Ozdemir, L. M. Tolbert, B. Ozpineci,
"Fundamental Frequency Modulated Multilevel Inverter For Three-Phase Stand-Alone Photovoltaic Application,"
IEEE Applied Power Electronics Conference,
Austin, Texas, February 24-28, 2008, pp. 148-153.
2007
W. Zhang, F. Li, L. M. Tolbert,
"Analysis of Var Benefits with Application to Var Planning,"
8th International Power Engineering Conference - IPEC2007,
3-6 December 2007, Singapore.
E. Ozdemir, S. Ozdemir, L. M. Tolbert, S. Khomfoi,
"Elimination of Harmonics in a Five-Level Diode-Clamped Multilevel Inverter Using Fundamental Modulation,"
IEEE International Conference on Power Electronics and Drive Systems,
November 27-30, 2007, Bangkok, Thailand, pp. 850-854.
S. Khomfoi, L. M. Tolbert,
"Fault Detection and Reconfiguration Technique for Cascaded H-bridge 11-level Inverter Drives Operating under Faulty Condition,"
IEEE International Conference on Power Electronics and Drive Systems,
November 27-30, 2007, Bangkok, Thailand, pp. 1035-1042.
K. Vanam, F. D. Barlow, B. Ozpineci, L. D. Marlino, M. S. Chinthavali, L. M. Tolbert, A. Elshabini,
"High-Temperature SiC Packaging for HEV Traction Applications,"
IMAPS International Symposium on Microelectronics ,
November 11-15, 2007, San Jose, California, 6 pages.
L. Reddy, L. M. Tolbert, H. Zhang, T. Cheek,
"Performance of Ultra-High Efficient Electronic Ballast for HID Lamps using SiC Devices,"
IEEE Industry Applications Society Annual Meeting,
September 23-27, 2007, New Orleans, Louisiana, pp. 471-477.
F. Khan, L. M. Tolbert,
"A 5-kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive Applications,"
IEEE Industry Applications Society Annual Meeting,
September 23-27, 2007, New Orleans, Louisiana, pp. 628-635.
Z. Du, B. Ozpineci, L. M. Tolbert,, J. N. Chiasson,
"Inductorless DC-AC Cascaded H-bridge Multilevel Boost Inverter for Electric/Hybrid Electric Vehicle Applications,"
IEEE Industry Applications Society Annual Meeting,
September 23-27, 2007, New Orleans, Louisiana, pp. 603-608.
Y. Xu, L. M. Tolbert, D. T. Rizy, J. D. Kueck,
"Nonactive-Power-Related Ancillary Services Provided by Distributed Energy Resources,"
IEEE Power Engineering Society General Meeting,
June 24-28, 2007, Tampa, Florida, 7 pages.
M. Shen, F. Z. Peng, L. M. Tolbert,
"Multi-Level DC/DC Power Conversion System with Multiple DC Sources,"
IEEE Power Electronics Specialist Conference,
Orlando, Florida, USA, June 17-21, 2007, pp. 2008-2014.
Z. Du, B. Ozpineci, L. M. Tolbert,
"Modulation Extension Control of Hybrid Cascaded H-bridge Multilevel Converters with 7-level Fundamental Frequency Switching Scheme,"
IEEE Power Electronics Specialist Conference,
Orlando, Florida, June 17-21, 2007, pp. 2361-2366.
M. Huque, R. Vijayaraghavan, M. Zhang, B. Blalock, L. Tolbert, S. Islam,
"An SOI-based High-Voltage, High-Temperature Gate-Driver for SiC JFET,"
IEEE Power Electronics Specialist Conference,
Orlando, Florida, USA, June 17-21, 2007, pp. 1491-1495.
Y, Xu, L. M. Tolbert, J. D. Kueck, D. T. Rizy,
"Voltage and Current Unbalance Compensation Using a Parallel Active Filter,"
IEEE Power Electronics Specialist Conference,
Orlando, Florida, USA, June 17-21, 2007, pp. 2919-2925.
J. N. Chiasson, B. Ozpineci, Z. Du, L. M. Tolbert,
"Conditions for Capacitor Voltage Regulation in a Five-Level Cascade Multilevel Inverter: Application to Voltage-Boost in a PM Drive,"
IEEE International Electric Machines and Drives Conference,
May 3-5, 2007, Antalya, Turkey, pp. 731-735.
S. Khomfoi, L. M. Tolbert, B. Ozpineci,
"Cascaded H-bridge Multilevel Inverter Drives Operating under Faulty Condition with AI-Based Fault Diagnosis and Reconfiguration,"
IEEE International Electric Machines and Drives Conference,
May 3-5, 2007, Antalya, Turkey, pp. 1649-1656.
F. H. Khan, L. M. Tolbert,
"Multiple Load-Source Integration in a Multilevel Modular Capacitor Clamped DC-DC Converter Featuring Fault Tolerant Capability,"
IEEE Applied Power Electronics Conference,
February 25 - March 1, 2007, Anaheim, California, pp. 361-367.
J. N. Chiasson, B. Ozpineci, L. M. Tolbert,
"A Five-Level Three-Phase Hybrid Cascade Multilevel Inverter Using a Single DC Source for a PM Synchronous Motor Drive,"
IEEE Applied Power Electronics Conference,
February 25 - March 1, 2007, Anaheim, California, pp. 1504-1507.
S. Khomfoi, L. M. Tolbert,
"A Diagnostic Technique for Multilevel Inverters Based on a Genetic-Algorithm to Select a Principal Component Neural Network,"
IEEE Applied Power Electronics Conference,
February 25 - March 1, 2007, Anaheim, California, pp. 1497-1503.
2006
W. Zhang, F. Li, L. M. Tolbert,
"Optimal Allocation of Shunt Dynamic Var Source SVC and STATCOM: A Survey,"
IEE International Conference on Advances in Power System Control, Operation and Management (APSCOM)
October 31 - November 2, 2006, Hong Kong, China.
F. Li, W. Zhang, L. M. Tolbert, J. D. Kueck, D. T. Rizy,
"Assessment of the Economic Benefits from Reactive Power Compensation,"
IEEE Power Systems Conference and Exposition (PSCE),
October 29 - November 1, 2006, Atlanta, Georgia, pp. 1767-1773.
H. Li, Z. Du, K. Wang, L. M. Tolbert, D. Liu,
"A Hybrid Energy System Using Cascaded H-Bridge Converter,"
IEEE Industry Applications Society Annual Meeting,
October 8-12, 2006, Tampa, Florida, pp. 198-203.
Y. Xu, L. M. Tolbert, J. N. Chiasson, J. B. Campbell, F. Z. Peng,
"Active Filter Implementation Using a Generalized Nonactive Power Theory,"
IEEE Industry Applications Society Annual Meeting,
October 8-12, 2006, Tampa, Florida, pp. 153-160.
H. Zhang, L. M. Tolbert, B. Ozpineci, M. Chinthavali,
"A SiC-Based Converter as a Utility Interface for a Battery System,"
IEEE Industry Applications Society Annual Meeting,
October 8-12, 2006, Tampa, Florida, pp. 346-350.
F. H. Khan, L. M. Tolbert,
"A Multilevel Modular Capacitor Clamped DC-DC Converter,"
IEEE Industry Applications Society Annual Meeting,
October 8-12, 2006, Tampa, Florida, pp. 966-973.
L. M. Tolbert, H. Zhang, M. Chinthavali, B. Ozpineci,
"SiC-based Power Converters for High Temperature Applications,"
European Conference on Silicon Carbide and Related Materials (ECSCRM),
September 3-7, 2006, Newcastle, United Kingdom.
M. Li, J. N. Chiasson, L. M. Tolbert,
"Capacitor Voltage Control in a Cascaded Multilevel Inverter as a Static Var Generator,"
International Power Electronics and Motion Control Conference(IPEMC 2006),
August 13-16, 2006, Shanghai, China.
M. Li, J. N. Chiasson, M. Bodson, L. M. Tolbert,
"Identification of the Rotor Time Constant in Induction Machines without Speed Sensor,"
International Power Electronics and Motion Control Conference(IPEMC 2006),
August 13-16, 2006, Shanghai, China.
S. Khomfoi, L. M. Tolbert,
"A Reconfiguration Technique for Multilevel Inverters Incorporating a Diagnostic System Based on Neural Network,"
IEEE Workshop on Computers in Power Electronics,
July 16-19, 2006, Troy, New York, pp. 317-323.
H. Zhang, L. M. Tolbert, B. Ozpineci,
"System Modeling and Characterization of SiC Schottky Power Diodes,"
IEEE Workshop on Computers in Power Electronics,
July 16-19, 2006, Troy, New York, pp. 199-204.
F. H. Khan, L. M. Tolbert, F. Z. Peng,
"Deriving New Topologies of DC-DC Converters Featuring Switching Cells,"
IEEE Workshop on Computers in Power Electronics,
July 16-19, 2006, Troy, New York, pp. 328-332.
S. Khomfoi, L. M. Tolbert,
"Fault Diagnosis System for a Multilevel Inverter Using a Principal Component Neural Network,"
IEEE Power Electronics Specialists Conference,
June 18-22, 2006, Jeju, Korea.
Z. Du, L. M. Tolbert, J. N. Chiasson, B. Ozpineci,H. Li, A. Huang,
"Hybrid Cascaded H-bridges Multilevel Motor Drive Control for Electric Vehicles,"
IEEE Power Electronics Specialists Conference,
June 18-22, 2006, Jeju, Korea.
X. Yu, L. M. Tolbert,
“Ancillary Services Provided from DER with Power Electronics Interface,”
IEEE Power Engineering Society General Meeting,
June 18-22, 2006, Montreal, Canada.
M. Li, J. Chiasson, M. Bodson, L. Tolbert,
"A Differential-Algebraic Approach to Speed Estimation in an Induction Motor: Open Loop Experimental Results,"
IEEE American Control Conference,
June 14-16, Minneapolis, Minnesota, pp. 2463-2468.
M. Chinthavali, L. M. Tolbert, B. Ozpineci, H. Zhang,
"High Temperature Power Electronics – Application Issues of SiC Devices,"
IMAPS International Conference on High Temperature Electronics,
May 15-18, 2006, Santa Fe, New Mexico.
H. F. Huq, S. K. Islam, L. M. Tolbert,
"AlGaN/GaN MODFET Device for High Temperature Applications,"
IMAPS International Conference on High Temperature Electronics,
May 15-18, 2006, Santa Fe, New Mexico.
B. Ozpineci, M. Chinthavali, A. Kashyap, L. M. Tolbert, A. Mantooth,
"A 55 kW Three-Phase Inverter With Si IGBTs And SiC Schottky Diodes,"
IEEE Applied Power Electronics Conference,
March 19-23, 2006, Dallas, Texas, pp. 448-454.
Z. Du, L. M. Tolbert,
J. N. Chiasson, B. Ozpineci,
"A Cascade Multilevel Inverter Using a Single DC Power Source,"
IEEE Applied Power Electronics Conference,
March 19-23, 2006, Dallas, Texas, pp. 426-430.
2005
K. Wang, J. Chiasson, M. Bodson, L. M. Tolbert,
"Parameter Identification of Hammerstein Models using Elimination Theory,"
IEEE Conference on Decision and Control,
December 12-15, 2005, Seville, Spain, pp. 3444-3449.
M. Li, J. Chiasson, M. Bodson, L. Tolbert,
"Observability of Speed in an Induction Motor from Stator Currents and Voltages,"
IEEE Conference on Decision and Control,
December 12-15, 2005, Seville, Spain, pp. 3438-3443.
S. Khomfoi, L. M. Tolbert,
"Fault Diagnosis System for a Multilevel Inverters Using a Neural Network,"
IEEE Industrial Electronics Conference,
November 6-10, 2005, Raleigh, North Carolina.
H. Qi, W. Zhang, L. M. Tolbert,
"A Resilient Real-Time Agent-Based System for a Reconfigurable Power Grid,"
International Conference on Intelligent Systems Application to Power Systems,
November 6-10, 2005, Arlington, Virginia.
Z. Du, L. M. Tolbert, J. N. Chiasson, H. Li,
"Low Switching Frequency Active Harmonic Elimination in Multilevel Converters with Unequal DC Voltages,"
IEEE Industry Applications Society Annual Meeting,
October 2-6, 2005, Hong Kong, China, pp. 92-98.
H. Zhang, M. Chinthavali, B. Ozpineci, L. M. Tolbert,
"Power Losses and Thermal Modeling of 4H-SiC VJFET Inverter,"
IEEE Industry Applications Society Annual Meeting,
October 2-6, 2005, Hong Kong, China, pp. 2630-2634.
Y. Xu, L. M. Tolbert, J. N. Chiasson, F. Z. Peng,
"Dynamic Response of Active Filter Using a Generalized Nonactive Power Theory,"
IEEE Industry Applications Society Annual Meeting,
October 2-6, 2005, Hong Kong, China, pp. 1225-1231.
B. Ozpineci, M. S. Chinthavali, L. M. Tolbert,
"A 55 kW Three Phase Automotive Traction Inverter with SiC Schottky Diodes,"
IEEE Vehicle Power and Propulsion Conference,
September 7-9, 2005, Chicago, Illinois, pp. 541-546.
F. Z. Peng, L. M. Tolbert, F. Khan,
"Power Electronics' Circuit Topology - the Basic Switching Cells,"
IEEE Power Electronics Educational Workshop,
June 16-17, 2005, Recife, Brazil, pp. 52-57.
Z. Du, L. M. Tolbert, J. N. Chiasson,
"Reduced Switching Frequency Computed PWM Method for Multilevel Converter Control,"
IEEE Power Electronics Specialists Conference,
June 12-16, 2005, Recife, Brazil, pp. 2560-2564.
W. Zhang, L. M. Tolbert,
"Survey of Reactive Power Planning Methods,"
IEEE Power Engineering Society General Meeting,
June 12-16, 2005, San Francisco, California, pp. 1580-1590.
K. Wang, J. Chiasson, M. Bodson, L. M. Tolbert,
"An On-Line Method for Tracking the Rotor Time Constant of an Induction Machine,"
American Control Conference,
June 8-10, 2005, Portland, Oregon, pp. 2739-2744.
K. Wang, J. N. Chiasson, M. Bodson, L. M. Tolbert,
"An Online Rotor Time Constant Estimator for the Induction Machine,"
IEEE International Conference on Electric Machines and Drives,
May 15-18, 2005, San Antonio, Texas, pp. 608-614.
M. Hasanuzzaman, S. K. Islam, L. M. Tolbert,
"Design, Modeling, and Characterization of Power MOSFET in 4H-SiC for Extreme Environment Applications,"
Government Microcircuit Applications and Critical Technology Conference (GOMACTech-05),
April 4-7, 2005, Las Vegas, Nevada, pp. 449-452.
M. Chinthavali, B. Ozpineci, L. M. Tolbert,
"High Temperature and High Frequency Performance Evaluation of 4H-SiC Unipolar Power Devices,"
IEEE Applied Power Electronics Conference,
March 6-10, 2005, Austin, Texas, pp. 322-328.
Z. Du, L. M. Tolbert, J. N. Chiasson,
"Modulation Extension Control for Multilevel Converters Using Triplen Harmonic Injection with Low Switching Frequency,"
IEEE Applied Power Electronics Conference,
March 6-10, 2005, Austin, Texas, pp. 419-423.
J. Campbell, L. M. Tolbert, C. W. Ayers, B. Ozpineci,
"Two-Phase Cooling Method Using R134a Refrigerant to Cool Power Electronics Devices,"
IEEE Applied Power Electronics Conference,
March 6-10, 2005, Austin, Texas, pp. 141-147.
2004
K. Wang, J. Chiasson, M. Bodson, L. Tolbert,
"A Nonlinear Least-Squares Approach for Identification of the Induction Motor Parameters,"
IEEE Conference on Decision and Control, December 8-14, 2004, Atlantis, Bahamas, pp. 3856-3861.
M. Chinthavali, B. Ozpineci, L. M. Tolbert,
"Temperature-Dependent Characterization of SiC Power Electronic Devices,"
IEEE Workshop on Power Electronics in Transportation,
October 21-22, 2004, Dearborn, Michigan, pp. 43-47.
K. Wang, J. Chiasson, M. Bodson, L. M. Tolbert,
"Tracking the Rotor Time Constant of an Induction Motor Traction Drive for HEVs,"
IEEE Workshop on Power Electronics in Transportation,
October 21-22, 2004, Dearborn, Michigan, pp. 83-88.
M. Shen, J. Wang, A. Joseph, F. Z. Peng, L. M. Tolbert, D. J. Adams,
"Maximum Constant Boost Control of the Z-Source Inverter,"
IEEE Industry Applications Society Annual Meeting,
October 3-7, 2004, Seattle, Washington, pp. 142-148.
Burak Ozpineci, Leon M. Tolbert, Zhong Du,
"Multiple Input Converters for Fuel Cells,"
IEEE Industry Applications Society Annual Meeting,
October 3-7, 2004, Seattle, Washington, pp. 791-797.
Madhu Chinthavali, Leon M. Tolbert, Burak Ozpineci,
"4H-SiC GTO Thyristor and p-n Diode Loss Model for HVDC Converter,"
IEEE Industry Applications Society Annual Meeting,
October 3-7, 2004, Seattle, Washington, pp. 1238-1243.
Zhong Du, Leon M. Tolbert, John N. Chiasson,
"Harmonic Elimination for Multilevel Converter with Programmed PWM Method,"
IEEE Industry Applications Society Annual Meeting,
October 3-7, 2004, Seattle, Washington, pp. 2210-2215.
Y. Xu, J. N. Chiasson, L. M. Tolbert,
"Nonactive Current Definition and Compensation Using a Shunt Active Filter,"
IEEE International Conference on Harmonics and Quality of Power,
September 12-15, 2004, Lake Placid, New York, pp. 573-578.
Z. Du, L. M. Tolbert, J. N. Chiasson,
"Active Harmonic Elimination in Multilevel Converters Using FPGA Control,"
IEEE Workshop on Computers in Power Electronics,
August 15-18, 2004, Urbana-Champaign, Illinois, pp. 127-132.
Burak Ozpineci, Leon M. Tolbert, Zhong Du,
"Optimum Fuel Cell Utilization with Multilevel Inverters,"
IEEE Power Electronics Specialists Conference,
June 20-25, 2004, Aachen, Germany, pp. 4798-4802.
Burak Ozpineci, Leon M. Tolbert, John N. Chiasson, Zhong Du,
"Harmonic Optimization of Multilevel Converters Using Genetic Algorithms,"
IEEE Power Electronics Specialists Conference,
June 20-25, 2004, Aachen, Germany, pp. 3911-3916.
Madhu Chinthavali, Leon M. Tolbert, Burak Ozpineci,
"SiC GTO Thyristor Model for HVDC Interface,"
IEEE Power Engineering General Meeting,
June 6-10, 2004, Denver, Colorado, pp. 680-685.
Burak Ozpineci, Zhong Du, Leon M. Tolbert, Gui-Jia Su,
"Optimum Fuel Cell Utilization with Multilevel DC-DC Converters,"
IEEE Applied Power Electronics Conference,
February 22-26, 2004, Anaheim, California, pp. 1572-1576.
2003
M. Hasanuzzaman, S. Kamrul Islam, Leon M. Tolbert,M. T. Alam,
"Temperature Dependency of MOSFET Device Characteristics in 4H - and 6H-Silicon Carbide (SiC),"
International Semiconductor Device Research Symposium (ISDRS),
December 10-12, 2003, Washington, DC, pp. 132-133.
John N. Chiasson, Leon M. Tolbert, Keith J. McKenzie, Zhong Du,
"Eliminating Harmonics in a Multilevel Converter Using the Theory of Symmetric Polynomials and Resultants,"
IEEE Conference on Decision and Control,
December 9-12, 2003, Maui, Hawaii, pp. 3507-3512.
Burak Ozpineci, Zhong Du, Leon M. Tolbert, Don J. Adams, Don Collins,
"Integrating Multiple Solid Oxide Fuel Cell Modules,"
IEEE Industrial Electronics Conference,
November 2-6, 2003, Roanoke Virginia, pp. 1568-1573.
John N. Chiasson, Leon M. Tolbert, Keith J. McKenzie, Zhong Du,
"A New Approach to Solving the Harmonic Elimination Equations for a Multilevel Converter,"
IEEE Industry Applications Society Annual Meeting,
October 12-16, 2003, Salt Lake City, Utah, pp. 640-645.
Burak Ozpineci, Leon M. Tolbert, S. Kamrul Islam, Madhu Chinthavali,
"Comparison of Wide Bandgap Semiconductors for Power Applications,"
10th European Conference on Power Electronics and Applications,
September 2-4, 2003, Toulouse, France.
John N. Chiasson, Leon M. Tolbert, Keith J. McKenzie, Zhong Du,
"A New Approach to the Elimination of Harmonics in a Multilevel Converter,"
10th European Conference on Power Electronics and Applications - EPE 2003,
September 2-4, 2003, Toulouse, France.
Leon M. Tolbert, Yan Xu, Jianqing Chen, Fang Z. Peng, John N. Chiasson,
"Definitions for Non-Periodic Current Compensation,"
10th European Conference on Power Electronics and Applications - EPE 2003,
September 2-4, 2003, Toulouse, France.
Burak Ozpineci, Leon M. Tolbert, S. Kamrul Islam,
"System Level Benefits of SiC Power Devices in DC-DC Converters,"
10th European Conference on Power Electronics and Applications - EPE 2003,
September 2-4, 2003, Toulouse, France.
Leon M. Tolbert, Yan Xu, Jianqing Chen, Fang Z. Peng, John N. Chiasson,
"Compensation of Irregular Currents with Active Filters,"
IEEE Power Engineering Society General Meeting,
July 13-18, 2003, Toronto, Canada, pp. 1278-1283.
Leon M. Tolbert, John N. Chiasson, Fang Z. Peng,
"Modulation Index Regulation of a Multilevel Inverter for Static Var Compensation,"
IEEE Power Engineering Society General Meeting,
July 13-18, 2003, Toronto, Canada, pp. 194-199.
Leon M. Tolbert, Yan Xu, Jianqing Chen, Fang Z. Peng, John N. Chiasson,
"Application of Compensators for Non-Periodic Currents,"
IEEE Power Electronics Specialist Conference,
June 15-19, 2003, Acapulco, Mexico, pp. 1525-1530.
Burak Ozpineci, Leon M. Tolbert,
"Simulink Implementation of Induction Machine Model - A Modular Approach,"
IEEE International Electric Machines and Drives Conference,
June 1-4, 2003, Madison, Wisconsin, pp. 728-734.
Leon M. Tolbert, John N. Chiasson, Keith J. McKenzie, Zhong Du,
"Control of Cascaded Multilevel Converters with Unequal Voltage Sources for HEVs,"
IEEE International Electric Machines and Drives Conference,
June 1-4, 2003, Madison, Wisconsin, pp. 663-669.
Leon M. Tolbert, Burak Ozpineci, S. Kamrul Islam, Madhu Chinthavali,
"Wide Bandgap Semiconductors for Utility Applications,"
IASTED International Conference on Power and Energy Systems (PES 2003),
February 24-26, 2003, Palm Springs, California, pp. 317-321.
Leon M. Tolbert, Yan Xu, Jianqing Chen, Fang Z. Peng, John N. Chiasson,
"Active Filter Energy Storage Requirement for Non-Periodic Current Compensation,"
IASTED International Conference on Power and Energy Systems (PES 2003),
February 24-26, 2003, Palm Springs, California, pp. 388-393.
John Chiasson, Leon Tolbert, Keith McKenzie, Zhong Du,
"Harmonic Elimination in Multilevel Converters,"
IASTED International Conference on Power and Energy Systems (PES 2003),
February 24-26, 2003, Palm Springs, California, pp. 284-289.
Madhu Hasanuzzaman, S. Kamrul Islam, Leon M. Tolbert, Burak Ozpineci,
"Model Simulations and Verifications of a Vertical Double Implanted (DIMOS)Transistor in 4H-Silicon Carbide,"
IASTED International Conference on Power and Energy Systems (PES 2003),
February 24-26, 2003, Palm Springs, California, pp. 313-316.
Leon M. Tolbert, John N. Chiasson, Keith McKenzie, Zhong Du,
"Elimination of Harmonics in a Multilevel Converter with Non Equal DC Sources,"
IEEE Applied Power Electronics Conference (APEC 2003),
February 9-13, 2003, Miami, Florida, pp. 589-595.
John N. Chiasson, Leon M. Tolbert, Keith McKenzie, Zhong Du,
"A Complete Solution to the Harmonic Elimination Problem,"
IEEE Applied Power Electronics Conference (APEC 2003),
February 9-13, 2003, Miami, Florida, pp. 596-602.
2002
Burak Ozpineci, Leon M. Tolbert, Syed K. Islam,
"Silicon Carbide Power Device Characterization for HEVs,"
The 7th IEEE Workshop on Power Electronics in Transportation,
October 24-25, 2002, Auburn Hills, Michigan, pp. 93-97.
Leon M. Tolbert, John N. Chiasson, Keith McKenzie, Zhong Du,
"Elimination of Harmonics in a Multilevel Converter for HEV Applications,"
The 7th IEEE Workshop on Power Electronics in Transportation,
October 24-25, 2002, Auburn Hills, Michigan, pp. 135-142.
Burak Ozpineci, Leon M. Tolbert, Syed K. Islam, M. Hasanuzzaman,
"A Parametric Device Study for SiC Power Electronics,"
IEEE Industry Applications Society Annual Meeting,
October 13-17, 2002, Pittsburgh, PA, pp. 570-575.
Leon M. Tolbert, William A. Peterson,Cliff P. White, Timothy J. Theiss, Matthew B. Scudiere,
"A Bi-Directional DC-DC Converter with Minimum Energy Storage Elements,"
IEEE Industry Applications Society Annual Meeting,
October 13-17, 2002, Pittsburgh, PA, pp. 1572-1577.
Burak Ozpineci, Leon M. Tolbert, Syed K. Islam, Tim J. Theiss,
"A Parametric Device Study for SiC Diodes in Vehicular Applications,"
IEEE Vehicular Technology Conference - Fall,
September 25-28, 2002, Vancouver, Canada.
John N. Chiasson, Leon M. Tolbert, Keith McKenzie, Zhong Du,
"Real-Time Computer Control of a Multilevel Converter Using the Mathematical Theory of Resultants,"
Proceedings of the Electrimacs Conference,
August 18-21, 2002, Montreal, Canada.
John N. Chiasson, Leon M. Tolbert, Keith McKenzie, Zhong Du,
"Eliminating Harmonics in a Multilevel Converter using Resultant Theory,"
IEEE Power Electronics Specialists Conference,
June 23-27, 2002, Cairns, Australia, pp. 503-508.
Burak Ozpineci, Leon M. Tolbert, Syed K. Islam, Fang Z. Peng,
"Testing, Characterization, and Modeling of SiC Diodes for Transportation Applications,"
IEEE Power Electronics Specialists Conference,
June 23-27, 2002, Cairns, Australia, pp. 1673-1678.
Fang Z. Peng, Leon M. Tolbert,
"Definitions and Compensation of Non-Active Current in Power Systems,"
IEEE Power Electronics Specialists Conference,
June 23-27, 2002, Cairns, Australia, pp. 1779-1784.
Fang Z. Peng, Gui-Jia Su, Leon M. Tolbert,
"A Passive Soft-Switching Snubber for PWM Inverters,"
IEEE Power Electronics Specialists Conference,
June 23-27, 2002, Cairns, Australia, pp. 129-134.
John N. Chiasson, Leon M. Tolbert, Yinghui Lu,
"A Library of SIMULINK blocks for Real-Time Control of HEV Traction Drives,"
2002 Future Car Congress Proceedings,
June 3-5, 2002, Arlington, Virginia. (SAE paper number 2002-01-1934).
Leon M. Tolbert, Burak Ozpineci, Syed K. Islam, Fang Z. Peng,
"Impact of SiC Power Electronic Devices for Hybrid Electric Vehicles,"
2002 Future Car Congress Proceedings,
June 3-5, 2002, Arlington, Virginia. (SAE Paper Number 2002-01-1904).
2001
Leon M. Tolbert, Burak Ozpineci, Syed Kamrul Islam, Md. Hasanuzzaman,
"Effects of Silicon Carbide (SiC) Power Devices on HEV PWM Inverter Losses,"
IEEE Industrial Electronics Conference,
November 29 - December 2, 2001, Denver, Colorado, pp. 1061-1066.
Leon M. Tolbert, William A. Peterson, Matt Scudiere, Larry Seiber, George Farquharson,
"Electronic Power Conversion System for an Advanced Mobile Generator Set,"
IEEE Industry Applications Society Annual Meeting,
September 30 - October 4, 2001, Chicago, Illinois, pp. 1763-1768.
Burak Ozpineci, Joao O. P. Pinto, Leon M. Tolbert,
"Pulse-Width Optimization in a Pulse Density Modulated High Frequency AC-AC Converter Using Genetic Algorithms,"
IEEE International Conference on Systems, Man, and Cybernetics,
October 7-10, 2001, Tucson, Arizona, pp. 1924-1929.
Leon M. Tolbert, Hairong Qi, Fang Z. Peng,
"Scalable Multi-Agent System for Real-Time Electric Power Management,"
IEEE Power Engineering Society Summer Meeting,
July 15-19, 2001, Vancouver, Canada, pp. 1676-1679.
Marc Bodson, John N. Chiasson, Leon M. Tolbert,
"A Complete Characterization of Torque Maximization of Permanent Magnet Non-Salient Synchronous Motors,"
IEEE American Controls Conference,
June 25-27, 2001, Arlington, Virginia, pp. 2148-2149.
Gui-Jia Su, Donald J. Adams, Leon M. Tolbert,
"Comparative Study of Power Factor Correction Converters for Single-Phase Half-Bridge Inverters,"
IEEE Power Electronics Specialists Conference,
June 17-21, 2001, Vancouver, Canada, pp. 995-1000.
John N. Chiasson, Leon M. Tolbert,
"High Performance Motion Control of a Switched Reluctance Motor,"
IEEE International Electric Machine Drives Conference,
June 17-21, 2001, Cambridge, Massachusetts, pp. 425-429.
2000
Leon M. Tolbert, Thomas G. Habetler,
"Comparison of Time-Based Non-Active Power Definitions for Active Filtering,"
IEEE International Power Electronics Congress,
October 15-19, 2000, Acapulco, Mexico, pp. 73-79.
Fang Z. Peng, Leon M. Tolbert,
"Compensation of Non-Active Current in Power Systems - Definitions from Compensation Standpoint,"
IEEE Power Engineering Society Summer Meeting,
July 15-20, 2000, Seattle, Washington, pp. 983-987.
Leon M. Tolbert, Fang Z. Peng,
"Multilevel Converters as a Utility Interface for Renewable Energy Systems,"
IEEE Power Engineering Society Summer Meeting,
July 15-20, 2000, Seattle, Washington, pp. 1271-1274.
John W. McKeever, Sujit Das, Leon M. Tolbert, Laura D. Marlino, Ashok Nedungadi,
"Life-Cycle Cost Sensitivity to Battery-Pack Voltage of an HEV,"
2000 Future Car Congress Proceedings,
April 2-6, 2000, Arlington, Virginia. (SAE paper number 2000-01-1556).
1999
Leon M. Tolbert, Fang Z. Peng, Thomas G. Habetler,
"Dynamic Performance and Control of a Multilevel Universal Power Conditioner,"
Conference Record - IEEE Industry Applications Society Annual Meeting,
Oct. 3-7, 1999, Phoenix, Arizona, pp. 440-447.
Leon M. Tolbert, Fang Z. Peng, Thomas G. Habetler,
"A Multilevel Converter-Based Universal Power Conditioner,"
IEEE Power Electronics Specialists Conference,
June 27 - July 1, 1999, Charleston, South Carolina, pp. 393-399.
Leon M. Tolbert, Fang Z. Peng, Thomas G. Habetler,
"Multilevel PWM Methods at Low Modulation Indices,"
IEEE Applied Power Electronics Conference,
March 14-18, 1999, Dallas, Texas, pp. 1032-1039.
1998
Leon M. Tolbert, Fang Z. Peng, Thomas G. Habetler,
"Multilevel Inverters for Electric Vehicle Applications,"
IEEE Workshop on Power Electronics in Transportation,
Oct. 22-23, 1998, Dearborn, Michigan, pp. 79-84.
Leon M. Tolbert, Thomas G. Habetler,
"Novel Multilevel Inverter Carrier-Based PWM Methods,"
Conference Record - IEEE Industry Applications Society Annual Meeting,
Oct. 11-15, 1998, St. Louis, Missouri, pp. 1424-1431.
Leon M. Tolbert, Fang Z. Peng,
"Multilevel Converters for Large Electric Drives,"
IEEE Applied Power Electronics Conference,
Feb. 15-19, 1998, Anaheim, California, pp. 530-536.
1996
Leon M. Tolbert, Peyton S. Hale, Harold Hollis,
"Evaluation of Harmonic Suppression Devices,"
Conference Record - IEEE Industry Applications Society Annual Meeting,
Oct. 6-10, 1996, San Diego, California, pp. 2340-2346.
Leon M. Tolbert, Peyton S. Hale, Harold Hollis,
"Survey of Harmonics Measurements in Electrical Distribution Systems,"
Conference Record - IEEE Industry Applications Society Annual Meeting,
Oct. 6-10, 1996, San Diego, California, pp. 2333-2339.
J. S. Hsu, J. D. Kueck, M. Olszewski, P. J. Otaduy, D. A. Casada, L. M. Tolbert,
"Comparison of Induction Motor Field Efficiency Evaluation Methods,"
Conference Record - IEEE Industry Applications Society Annual Meeting,
Oct. 6-10, 1996, San Diego, California, pp. 703-712.
1995
Leon M. Tolbert, Jeff T. Cleveland, Lynn J. Degenhardt,
"Reliability of Lightning-Resistant Overhead Distribution Lines,"
Conference Record - IEEE Industrial & Commercial Power Systems Technical Conference,
May 7-11, 1995, San Antonio, Texas, pp. 147-152.
Leon M. Tolbert,
"Computer-Aided Coordination and Overcurrent Protection of Industrial Distribution Systems",
Conference Record - IEEE Industrial & Commercial Power Systems Technical Conference,
May 7-11, 1995, San Antonio, Texas, pp. 169-173.
1991
Thomas G. Habetler, Francesco Profumo, Michele Pastorelli, Leon M. Tolbert,
"Direct Torque Control of Induction Machines Using Space Vector Modulation,"
Conference Record - IEEE Industry Applications Society Annual Meeting,
Oct. 1991, Dearborn, Michigan, pp. 428-436. (This paper won second prize from the Industrial Drives Committee of the IAS.) |
