黄丹;陈树勇;张一驰;

• 1:北京交通大学电气工程学院
• 2:中国电力科学研究院有限公司

摘要(Abstract)：

基于实时获取的广域测量信息,提出一种利用功角响应时间序列最大Lyapunov指数指标(largestLyapunov exponent index,LLEI)与角速度偏差相结合的暂态功角稳定判别方法。基于无需系统模型的LLEI估算方法,建立LLEI与角速度偏差的数学关系,并利用相轨迹稳定性动态特征,提出一种基于LLEI与角速度偏差特征的暂态功角稳定判据。该判据无需寻找最优计算时间窗口且所需计算窗口很短,并能给出确切的稳定性判别时间,克服了传统LLEI分析方法的不足,能够准确、快速地判别暂态稳定性。为节省计算时间和计算成本,提出基于最严重受扰机组对的多机电力系统暂态稳定在线判别方案。通过IEEE 10机39节点系统算例,验证了所提方法的准确性及快速性。计算仅利用少量WAMS量测数据,算法简单快速、计算成本低,能够实现在线判别,具有良好的应用前景。

关键词(KeyWords)： 暂态稳定;LLEI;角速度偏差;响应时间序列;广域测量系统

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司大电网重大专项资助课题(SGCC-MPLG030-2012)~~

作者(Author): 黄丹;陈树勇;张一驰;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.0960

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