两种基于受扰轨迹的暂态稳定识别方法性能比较

Performance Comparison of Two Transient Stability Detection Algorithms Based on Disturbed Trajectory

随着广域测量系统(WAMS)在电力系统中的迅速发展,在线识别系统不稳定成为可能,这对于实时紧急控制有着重要意义。对目前比较有代表性的两种基于受扰轨迹的暂态稳定识别方法进行介绍,并通过仿真对两种方法进行分析,结果显示这两种算法有很好的准确性、适用性和实时性,可以作为实时暂态紧急控制的启动判据。

With the rapid development of wide area measurement system（WAMS） in electric power system,on-line detection of power system instability is possible,which has great significance for real-time emergency control.In this paper,we describe two algorithms,which are more representative in current disturbed trajectory based transient stability detection method.By analyzing the two algorithms with the method of simulation,we find that these two methods have excellent performance in accuracy,applicability and real time,so that they can be used as the startup criterion of real-time transient emergency control.