湖南电力 ›› 2025, Vol. 45 ›› Issue (3): 54-61.doi: 10.3969/j.issn.1008-0198.2025.03.008

• 源网协调与能源转换利用 • 上一篇    下一篇

基于扩展等面积准则和电网脆弱环节识别的电力系统暂态稳定分析

魏川翔, 杨林   

  1. 国网四川省电力公司南充供电公司,四川 南充 637000
  • 收稿日期:2025-03-21 修回日期:2025-05-08 发布日期:2025-07-02
  • 通信作者: 杨林(1991),男,硕士,工程师,研究方向为电力系统稳定与控制、高压直流输电系统、电力系统稳定分析计算、电力系统优化调度。
  • 作者简介:魏川翔(1993),男,硕士,工程师,研究方向为电力系统稳定与控制、高压直流输电系统、电力系统稳定分析计算、电力系统优化调度。
  • 基金资助:
    国网四川省电力公司科技项目(52199723001F)

Transient Stability Analysis of Power Systems Based on Extended Equal Area Criterion and Grid Vulnerabilities Identification

WEi Chuanxiang, YANG Lin   

  1. State Grid Nanchong Power Supply Company, Nanchong 637000, China
  • Received:2025-03-21 Revised:2025-05-08 Published:2025-07-02

摘要: 为保障电力系统安全运行、准确评估电力系统暂态稳定性,提出一种融合脆弱环节识别、发电机分群及扩展等面积准则(EEAC)的暂态稳定性分析方法。首先,对电力系统中的脆弱环节进行识别,并依据识别结果对发电机进行分群,以此确定划分出超前机群和滞后机群。然后,运用EEAC方法开展暂态稳定分析,评估不同扰动情景下电力系统暂态稳定性所受到的影响。仿真案例验证表明,该方法能够有效判断电力系统受到扰动后的暂态稳定性,具有较高的准确性和可靠性,可为电力系统的暂态稳定性分析提供行之有效的工具。 关键词:脆弱环节识别;暂态稳定性;EEAC

关键词: 脆弱环节识别, 暂态稳定性, EEAC

Abstract: In order to ensure the safe operation of the power system and accurately assess the transient stability of the power system, a transient stability analysis method integrating vulnerability identification, generator grouping, and the extended equal area criterion (EEAC) is proposed. Firstly, the vulnerabilities in the power system are identified, and the generators are grouped according to the identification results, thereby determining the advanced and lagging generator groups. Then, the EEAC method is used to conduct transient stability analysis and evaluate the impact of different disturbance scenarios on the transient stability of the power system. Through the verification of simulation cases, the results show that the method can effectively judge the transient stability of the power system after being disturbed with high accuracy and reliability and can provide an effective tool for transient stability analysis of power systems.

Key words: vulnerability identification, transient stability, extended equal area criterion (EEAC)

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