摘要
提出用扩展Petri网后向诊断模型来处理具有冗杂保护信息的电力系统故障,其有效性在宿豫县黄墩变故障诊断中得到了印证,同时也与前向Petri网演绎仿真所得的结果相吻合。不确定或不正确的保护信息也可以通过与所建立起的相应诊断模板进行比照分析给出定性的结论。全部诊断过程只需要建立正确的Petri网模型和进行一些简单的矩阵运算就可以获得准确的结果,节省了故障诊断时间,提高了效率,适于实时在线故障诊断。
A fault diagnosis method based on extended backward Petri nets is presented, which is mainly to deal with some faults comprising integrated protection information in power system. It has been proved to be true in fault diagnosis of Huangdun substation of Suyu county, and the results are in accordance with the ones deduced by forward Petri model. Some uncertain or incorrect information can be testified by comparison with corresponding diagnosis template. All diagnosis course can be completed with correct Petri model and some simple matrix numeration. This method saves time for diagnosis greatly and enhances efficiency, so it is very applicable for real-time fault diagnosis.
出处
《继电器》
CSCD
北大核心
2005年第10期45-48,61,共5页
Relay
