【摘要】 提出一种基于ＰＭＵ 对发电机实时测量功角来预测电力系统暂态稳定性的方法。通过采集功角数据，用多项式逼近去快速预测它未来的变化，同时为提高精度采用智能动态修正，然后判断多项式是否存在极值，若存在可预测系统首摆稳定，反之则不稳定。仿真结果表明，该方法对首摆稳定性的预测是准确和有效的。更多还原

【Abstract】 This paper presents a fast real time transient stability prediction method based on synchronised phasor measurements. By collecting phasor data, then phasor change is obtained by polynomial approaching. At the same time, phasor is modified by intelligent control. If polynomial have extremum, first swing is stable, contrariwise it is unstable. The digital simiulation verifies the high accuracy and effectiveness of provided algorithm.更多还原