Time-localization of forced oscillations in power systems
Time-localization of forced oscillations in power systems
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DOI：
10.1109/pesgm.2015.7286129
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发表时间：
2015-07
期刊：
影响因子：
--
通讯作者：
J. Follum;J. Pierre
中科院分区：
文献类型：
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作者：
J. Follum;J. Pierre
电力系统中会发生强迫振荡，识别这些振荡对于系统的正常运行是很重要的。在分析和处理强迫振荡时，感兴趣的两个参数是起点和终点。为了获得这些参数的估计，本文提出了一种时间定位算法，该算法基于测量数据与受迫振荡频率处的复正弦信号之间的样本互相关的几何分析。模拟和测量同步相量数据的结果表明，该算法能够准确估计强迫振荡的起始点和结束点。
In power systems forced oscillations occur, and identification of these oscillations is important for the proper operation of the system. Two of the parameters of interest in analyzing and addressing forced oscillations are the starting and ending points. To obtain estimates of these parameters, this paper proposes a time-localization algorithm based on the geometric analysis of the sample cross-correlation between the measured data and a complex sinusoid at the frequency of the forced oscillation. Results from simulated and measured synchrophasor data demonstrate the algorithm's ability to accurately estimate the starting and ending points of forced oscillations.