一种计及时序信息的电网故障诊断改进模型  

One Power Grid Fault Diagnosis Improvement Model Considering of Sequence of Event Information

作　　者：何祥针[1] 梁俊晖 廖鹏[1] 

机构地区：[1]广东电网电力调度控制中心,广东广州510600

出　　处：《广东电力》2013年第3期72-77,共6页Guangdong Electric Power

摘　　要：在对目前故障诊断优化模型深入研究的基础上,分析其存在的不足,尤其是对诊断结果可能由于没有考虑时序信息而导致多解进行了剖析。在深入分析时序信息的基础上,挖掘其对诊断有价值的信息,并把时序信息中能够对诊断结果产生有效影响部分与已有的优化诊断模型相结合,提出一种新的计及保护和断路器动作时序信息的优化诊断模型。通过经典算例以及广东电网的实际算例进行测试,利用成熟的简约覆盖集和Tabu搜索相结合的方法进行求解,并与未考虑时序信息的模型求解结果进行对比,测试结果证明考虑了时序信息的新模型诊断结果更加准确,弥补了旧模型由于未计及时序信息而导致多解的缺点。On the basis of studying present fault diagnosis optimal model, this paper analyzes its existing defects especially multiple solutions of the diagnosis result caused for reason of reckon without sequence of event information. Based on deep analysis of sequence of event information, it excavates valuable information for diagnosis. By combining effective parts of the diagnosis result of sequence of event information and existing optimal diagnosis model, it proposes one new optimal diag- nosis model considering of sequence of event information of protection and breaker. By testing for typical diffset and practi- cal examples of Guangdong power grid, it uses mutual contracted coverage set and Tabu search method for solution. It com- pares result with the model which dose not consider of sequence of event information. The testing result shows that the new model is more correct which makes up defects of multiple solutions caused by the old model.

关 键 词：故障诊断 电网 优化模型 时序信息 

分 类 号：TM711[电气工程—电力系统及自动化]