二重预想事故排序的快速计算

A fast algorithm of double contingency evaluation

在线安全分析中 ,二重预想事故由于其后果的严重性已受到越来越多的关注。在本文中 ,提出仅考虑由于一重预想事故引发的继发性二重预想事故 ,即不考虑由于偶然原因引起的两预想事故同时发生的情况 ,在进行计算时 ,采用了完全边界法和自适应边界法相结合的方法 ,并提出了包含电压、无功与有功的综合性能指标 ,从而大大提高了预想事故筛选的速度 ,并且预想事故筛选过程同时进行了一重预想事故筛选和二重预想事故筛选 ,为运行人员提供了更多有用的信息。

A fast algorithm is described by studying specific double contingency events in on line power system security analysis the second contingency takes place because of the first contingency but not considers the condition that two independent contingencies happen at the same time because of haphazard.Using the adaptive location method and the absolute boundary method to calculate post contingency power flow and proposing the integrative practical issues including voltage, reactive and active power in this paper.Comparing with the conventional contingency evaluation methods,the method is fast and reasonable.