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To explore the ability of power system stabilizer 2B (PSS2B) to inhibit the low-frequency oscillations in deep peaking conditions of thermal power. In order to investigate the ability of power system stabilizer 2B (PSS2B) to suppress low-frequency oscillations under deep peaking conditions in thermal power plants, the Phillips-Heffron model of synchronous generator is constructed based on the single-unit infinity system, the basic principle of low-frequency oscillations and the role of the PSS 2B are elaborated, and the weakened damping characteristics of the PSS2B under deep peaking conditions are revealed through the analysis of the examples.

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Low-Frequency Oscillation Suppression Capability Analysis of Thermal Units Under Power Deep Peak Shaving

  • 会议论文

  • 发表日期：

    2025年

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  • Pengbo Zhu,
  • Shengyang Lu,
  • Jian Dong,
  • Qingshan Liu,
  • Guorui Li,
  • Haixin Wang,
  • Tieyan Zhang,
  • Junyou Yang

摘要

To explore the ability of power system stabilizer 2B (PSS2B) to inhibit the low-frequency oscillations in deep peaking conditions of thermal power. In order to investigate the ability of power system stabilizer 2B (PSS2B) to suppress low-frequency oscillations under deep peaking conditions in thermal power plants, the Phillips-Heffron model of synchronous generator is constructed based on the single-unit infinity system, the basic principle of low-frequency oscillations and the role of the PSS 2B are elaborated, and the weakened damping characteristics of the PSS2B under deep peaking conditions are revealed through the analysis of the examples.