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A Contoured Controller Bode-Based Iterative Tuning Method for Multi-Band Power System Stabilizers

Author

Listed:
  • Hao Xu

    (School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

  • Chongxi Jiang

    (Hangzhou Power Supply Company, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310027, China)

  • Deqiang Gan

    (School of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract

An iterative tuning method for multi-band power system stabilizers is proposed, which utilizes the contoured controller Bode (CCBode) plot. The typical multi-band power system stabilizer, PSS4B, is conceptualized as a series connection of two filters: a band-pass filter and a phase compensator. The tuning process involves a space searching approach for the phase compensator to ensure its phase–frequency response remains within acceptable bounds. Subsequently, the CCBode plot is employed to adjust the magnitude–frequency response of the band-pass filter, thereby enhancing stability performance across a broad frequency range. The method proposed can be applied to the parameter design of the multi-band power system stabilizer PSS4B in the power system to suppress the low-frequency oscillations of the local mode and inter-regional mode in the system. The effectiveness of this proposed method is demonstrated through case studies of the four -machine/two-area system and the North China Power Grid.

Suggested Citation

  • Hao Xu & Chongxi Jiang & Deqiang Gan, 2024. "A Contoured Controller Bode-Based Iterative Tuning Method for Multi-Band Power System Stabilizers," Energies, MDPI, vol. 17(13), pages 1-17, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:13:p:3243-:d:1427190
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