摘要
介绍了电压暂降分析的计算方法,主要分为两类:实测统计法和随机估计法,主要讨论了随机估计法的两种算法:故障点法和临界距离法;在此基础上提出将二者有机结合的算法,最后通过实验和仿真的方法说明了该算法不仅可以准确确定系统发生故障时各变电所、各母线的电压暂降;而且能够确定电压暂降凹陷域的范围,从而说明了该算法的可行性和准确性。
The voltage sag calculation methods were introduced, which could be divided into two categories： statistical methods and random measurement estimation. Meanwhile, the random measurement estimation mainly discussed two algorithms： the critical failure point method and distance method; on this basis of the two algorithms, the combination method was put forward. Finally, the experiment and simulation methods illustrate that the algorithm can not only accurately calculate the bus voltage sag caused by short-circuit fault of the system and the substation, but also can determine the voltage sag range of fields, which illustrates the feasibility and accuracy of the algorithm.
出处
《电源技术》
CAS
CSCD
北大核心
2012年第12期1873-1875,共3页
Chinese Journal of Power Sources
关键词
电压暂降
凹陷域
故障点法
临界距离法
voltage sag
sunken filed
fault-point method
critical distance method
