基于Petri网和双层判据的配电网故障定位方法

Fault location method for distribution network based on Petri net and double criterions

为了提高配电网故障定位系统的运算速度和容错性能,提出了一种基于Petri网和双层判据的配电网故障定位方法:依据电流判据和电压判据进行故障诊断,并通过双层判据和概率信息实现冗余信息纠错。首先介绍了结合概率信息的Petri网的结构和定义;然后建立了故障定位的通用Petri网模型;最后对配电网2种标准接线方式的故障定位过程进行建模仿真,仿真结果验证了本文方法的可行性和有效性。

In order to improve operation speed and fault tolerance capability of fault location system of distribution network,a fault location method for distribution network based on Petri net and double criterion was proposed.Fault diagnosis was done according to voltage criterion and current criterion,and error correction of redundancy information was achieved through double criterions and probability information.Structure and the definition of Petri net combined with probabilistic information was introduced firstly,and then general Petri net model of fault location was established,finally,validity and feasibility of the proposed method were validated by simulation of fault localization procedure of distribution network with two standard wiring modes.