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电网技术  2009 

电力系统小干扰稳定安全评估的一般原则及其在贵州电网中的应用

, PP. 24-28

Keywords: 电力系统,低频振荡,小干扰稳定,贵州电网,安全评估

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Abstract:

互联电力系统的低频振荡问题日益突出,对实际电网开展及时、有效的小干扰稳定安全评估,深入掌握系统小干扰稳定特性具有十分重要的现实意义。针对相关研究系统性、规范性不足的问题,提出工程中小干扰稳定安全评估的一般原则,即有效性、典型性和可验性原则。将上述原则应用于贵州电网的小干扰稳定安全评估中,指出贵州电网的关键模式为云贵区域模式,分析了云贵区域模式受贵州外送功率、贵州500kV线路接线、贵州机组电力系统稳定器参数影响的特性,提出通过现场测试调整电力系统稳定器参数,提高系统阻尼的建议。文中的研究可为现场开展小干扰稳定安全评估提供参考。

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