Foundations and Trends® in Electric Energy Systems > Vol 2 > Issue 2

Wide-area Oscillation Identification and Damping Control in Power Systems

Chao Lu, Tsinghua University, China, luchao@tsinghua.edu.cn Jingyi Zhang, Tsinghua University, China, zhangjingyi91@gmail.com Xinran Zhang, The University of Hong Kong, Hong Kong, zhangxr@eee.hku.hk Yi Zhao, Tsinghua University, China, iamrunning@126.com
 
Suggested Citation
Chao Lu, Jingyi Zhang, Xinran Zhang and Yi Zhao (2018), "Wide-area Oscillation Identification and Damping Control in Power Systems", Foundations and TrendsĀ® in Electric Energy Systems: Vol. 2: No. 2, pp 133-197. http://dx.doi.org/10.1561/3100000003

Published: 14 Aug 2018
© 2018 C. Lu, J. Zhang, X. Zhang and Y. Zhao
 
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In this article:
1. Introduction
2. Framework
3. Identification Method: Output Response Identification
4. Identification Method: Input-output Model Identification (MIMO)
5. Controller Design Method: Offline Design
6. Controller Design Method: Adaptive
7. Case Studies
8. Conclusion
Acknowledgements
References

Abstract

Low-frequency oscillation (LFO) is a phenomenon inherent to power systems and should be carefully considered and dampened to improve the dynamic stability of power systems. With the development of wide area synchronous phasor measurement technology, the measurement results of phasor measurement units (PMUs) and wide-area measurement system (WAMS) can be applied in system identification and the wide area damping controller design to suppress LFO. In this paper, the identification methods and controller design methods of wide area damping control are reviewed. The basic framework for the application of PMU/WAMS results in power system identification and control is introduced first. Both the output response identification and the input-output identification are introduced in the identification section. The offline controller design and adaptive controller design methods are introduced. Practical cases in China Southern Grid and China Central Grid are reviewed as engineering application examples.

DOI:10.1561/3100000003
ISBN: 978-1-68083-478-9
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ISBN: 978-1-68083-479-6
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Table of contents:
1. Introduction
2. Framework
3. Identification Method: Output Response Identification
4. Identification Method: Input-output Model Identification (MIMO)
5. Controller Design Method: Offline Design
6. Controller Design Method: Adaptive
7. Case Studies
8. Conclusion
Acknowledgements
References

Wide-area Oscillation Identification and Damping Control in Power Systems

Wide-area damping control (WADC) has been extensively studied in recent years to suppress inter-area oscillations in power systems. This monograph summarizes the state-of-the-art on WADC design, looking at practical issues, typical off-line and adaptive WADC design methods, and engineering cases. These practical issues include design flow, mode analysis, choice of actuator and feedback, system identification and time delay. Both offline and adaptive WADC design methods are reviewed and compared. It also reviews some interesting WADC engineering cases from around the world.

 
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