SYLLABUS (UPDATED THROUGHOUT SEMESTER)
AND COURSE OVERVIEW

ECE 422
Spring 2020
Power Systems Analysis II
Instructors: Kevin Tomsovic
email: tomsovic@utk.edu

### Text:

• H. Sadat,  Power System Analysis, McGraw-Hill, 2002. (421 text).

### Other Recommended References:

• P. Kundur, Power System Stability and Control, McGraw-Hill, 1994, (Main text – excellent reference)

• H. Saadat,  Power System Analysis, McGraw-Hill, 2002. (421 text as reference).
• A.  Bergen and V. Vittal, Power System Analysis, Prentice Hall, 2000. (421 text as reference).
• Various journal papers and notes.

### Overview

This course will cover analysis and control of the power system under disturbances to include both dynamics and quasi steady-state approaches. The recommended background for this course is understanding of steady-state power system analysis (including load flow, three-phase balanced operation, economic dispatch and optimal power flow) as well as familiarity with numerical methods and ordinary differential equations. There will be some minor programming required in Matlab, so it will also be desirable to be familiar with Matlab.

Objectives
Upon completion of this course (and the pre-requisites to this course), every student should have gained:
1. An understanding of: (a) safe, economic and reliable power system operations and planning (b) fundamental techniques for analysis of the system under disturbances (c) fundamental techniques for dynamic analysis.
2. A greater appreciation of the engineering requirements of the power system, and in particular, the complexity and tremendous size of the system needed to meet demand reliably and economically.
3. A broad familiarity with the contemporary technological and societal issues of the electric power system, including such issues as: new approaches to the overall system infrastructure, alternative fuel sources, deregulation, social obligation to serve and environmental impact.

Review of Fundamentals
Text: Sadat Chapters 1-7; Ref: Notes

• Background review, including

• Operating states and control actions - economic vs. preventive vs. remedial
• Mathematical fundamentals - iterative methods, numerical solutions and differential algebraic equations
• Advanced modeling considerations - generator reactive limits, tap changing transformers, voltage dependent loads, phase shifting transformers, sparsity, HVDC
• 'n-1' security

Text: Chapter 12 Saadat; Ref: Chapter 11 Kundur,
• Concepts of security

• Voltage security - PV curves
• Reactive reserves - static vs. dynamic
• Voltage controls - secondary and tertiary controls, transformer taps, VAR injection
• Contingency analysis and security assessment
• State estimation as an extension of load flow
• DC (linearized) state estimation
• Observability
• Bad data detection and identification
• Full AC state estimation
• NERC operation guidelines and security constrained dispatch
• Concepts of reliability
• Operations and planning responsibilities
• Reliability and probability fundamentals
• System reliability calculations - generation adequacy, scenario analysis, distribution reliability

Text: Chapter 12 Saadat; Ref: Chapter 11 Kundur

• Load following and frequency regulation
• Simplified generator model and governor droop (AGC)
• Interarea exchange - tielines and Area Control Error (ACE)
• NERC control performance standards (CPS 1 and 2; BAL-001)

Faster Generator Dynamics - simplified transient stability analysis
Text: Chapter 11 Saadat; Ref: Chapter 13 Kundur

• Simple analysis for large disturbances

• Swing equation
• Equal area criterion - first swing analysis (transient stability)
• Numerical integration methods
• Critical clearing angle and critical clearing time
Faster Generator Dynamics - advance transient stability analysis (tentative)
Text: Chapter 8 Saadat; Ref: Chapter 3-5, 12-13 Kundur;
• Detailed generator modeling - analysis by time domain simulation
• Electrodynamics - Park's equations and d-q axis model
• Power system stabilizers
• Solving DAE systems
• Dynamic security analysis
• NERC disturbance criteria
• Multimachine sytems (if time)
• Commercial software - PSS/E (if time)

Short-circuit Analysis  and Unbalanced Systems

• Balanced faults

• Unbalanced systems

• Symmetrical components

Midterm 1 and 2; Final Exam - Dates to be determined