Sponsored by IEEE PES PSDP Committee and PSSC Subcommittee
Grid operators are facing various power system oscillations with the upgrades in generation and transmission and the increasing penetration of inverter-interfaced resources (IBRs). Among all types of oscillations, sustained forced oscillations have posed unique threats to reliable grid operations because, first, they have unpredictable frequencies of a wide spectrum overlapping electromechanical oscillations up to sub-synchronous oscillations, second, they are caused by an unmodeled external source such as a malfunctioning or improperly tuned controller inside the system or an unknown driving force outside of the system, and third, the sources have to be located accurately in order to take an effective mitigation action. The academia and industry have reached a consensus on the differences between forced oscillations and conventional natural oscillations in terms of their mechanisms and mitigation measures.
In past five years, many R&D activities were focused on locating the source of a forced oscillation from measurements by energy, modal analysis or machine learning based methods. Some of the methods have been successfully implemented by the industry for post-event analyses or real-time applications, and system operators have gained experience in locating and mitigating forced oscillations. This new Task Force (TF) will consolidate state-of-the-art methods, success stories, real examples, and industrial practices on locating and mitigating forced oscillations.
No. | Task | Time Frame | Deliverables |
---|---|---|---|
Summarizing Various Approaches for Locating and Mitigating Forced Oscillations | |||
1 | Document the approaches of the IEEE/NASPI contest winners. | Jul. 2024 - Jul. 2025 | Success stories of contest winners |
2 | Conduct a survey to summarize and categorize available approaches for locating and mitigating forced oscillations. | Jul. 2024 - Jul. 2025 | Survey on methods and tools |
3 | Complete a conference/journal paper on the survey. | Jul. 2024 - Jul. 2025 | Milestone |
Documenting Industrial Practices in Locating and Mitigating Forced Oscillations | |||
4 | Document the criteria and studies on forced oscillations by the industry. | Jul. 2025 - Jul. 2026 | Documentation |
5 | Document real examples and the monitoring and mitigation strategies on forced oscillations. | Jul. 2025 - Jul. 2026 | Documentation |
6 | Complete a conference/journal paper on the industrial practices in locating and mitigating forced oscillations | Jul. 2025 - Jul. 2026 | Milestone |
Test Cases Library with Simulated and Real Measurements on Forced Oscillations | |||
7 | Produce more simulated cases on forced oscillations. | Jul. 2026 - Jul. 2027 | New test cases |
8 | Collect forced oscillation events captured by real PMUs and Digital Fault Recorders. | Jul. 2026 - Jul. 2027 | New test cases |
9 | Submit the datasets of the library to IEEE DataPort. | Jul. 2026 - Jul. 2027 | Milestone |