Petri网理论在变电站故障诊断中的应用

Application of Petri Net Theory in the Substation Fault Diagnosis

为提高变电站故障诊断的效率,本文以Petri网络模型中的库所表示变压器、开关、继电器等电力设备,以Petri网络模型中的变迁表示开关、继电保护等的动作情况,对应实际生产中的具体设备,整个诊断过程通过矩阵运算实现.使得诊断结果更有针对性,实际运算速度更快,诊断正确率有所提高,从而对故障信号具有更强的识别能力.

In order to improve the efficiency of the substation fault diagnosis, the proposed method describes the electric equipment such as transformer, on-off, relay etc. by place and on-off, relay protect by the transition in the Petri net models. The process of fault diagnosis is accomplished by algebra matrixes calculation corresponding to the specific equipment in the production, which makes the diagnosis result pertinent and the calculation fast. So, it is more powerful in identifying the error information.