基于Petri网技术的电力系统故障诊断  

Using Petri nets for diagnosis of power system faults

作　　者：李雄刚[1] 李力[1] 李日隆[2] 

机构地区：[1]广东省电力调度中心,广东广州510600 [2]广东工业大学自动化学院,广东广州510090

出　　处：《广东电力》2004年第3期9-13,34,共6页Guangdong Electric Power

摘　　要：2003年8月14日美加大停电事故为我国电力安全工作今后研究方向带来了启示。利用Petri网技术对电力系统故障进行快速建模,并在计算机辅助故障诊断方面进行研究运算,可及时得出故障范围。为此,介绍了利用Petri网进行电力系统故障仿真,包括了模型的建立、故障假设与诊断和对不确定信号的诊断与排除,并给出了仿真算例。这有助于调度人员快速、准确地判断事故,防止电网事故扩大。The large scale blackout in interconnected North America power grid on August 14, 2003 has provided some enlightenment for Chinas power security operators and researchers. In this paper, the technique of Petri net is used in power system fault modeling and computer-assisted fault diagnosis. The use of Petri nets in power system fault simulation is described in terms of modeling, hypothesis and diagnosis of faults and diagnosis and removal of uncertain signals. The efficiency of the method is validated by simulation cases. It can help dispatchers rapidly locate power system faults and deal with them speedily and correctly.

关 键 词：电力系统 故障诊断 PETRI网 

分 类 号：TM773[电气工程—电力系统及自动化] TP206.3[自动化与计算机技术—检测技术与自动化装置]