摘要
针对由于断路器失灵造成的电网连锁故障,调度人员难以在短时间内详细分析故障原因、过程的问题,提出一种利用电网拓扑和多数据源综合分析的复杂故障诊断方法。即通过电网拓扑中断路器开合状态确定邻接矩阵,形成故障后电网的拓扑连接关系,对故障电网拓扑图的停电区域搜索,确定连锁故障的诊断类型,并详细分析故障录波数据,诊断出断路器失灵造成的连锁故障的原因。算例分析表明,该方案能有效诊断复杂故障,具有较好的应用前景。
In view of the grid cascaded failure caused by the failure of the circuit breaker,it is difficult for the dispatcher to analyze the fault cause and process in a short time.This paper proposes a complex fault diagnosis method that utilizes the power grid topology and multi-data source comprehensive analysis.The equipment connection relationship matrix is established through the state of the circuit breaker,and the topology connection relationship of the grid after the fault is formed.Then the fault diagnosis type of the fault grid topology is determined,as well as the diagnosis type of the cascaded fault.The detailed analysis of the fault recording data is utilized to diagnose the detailed cause and process of the cascaded failure caused by the failure of the circuit breaker.The analysis of the example shows that this method can effectively diagnose complex faults,and has a good application prospect.
作者
肖飞
杨国健
邓祥力
赵路路
黄冰飞
陆怡
XIAO Fei;YANG Guo-jian;DENG Xiang-li;ZHAO Lu-lu;HUANG Bing-fei;LU Yi(State Grid Shanghai Municipal Electric Power Company,Shanghai 200122,China;School of Electric Engineering,Shanghai University of Electric Power.Shanghai 200090,China)
出处
《水电能源科学》
北大核心
2020年第2期189-192,共4页
Water Resources and Power
基金
国网上海市电力公司科技项目(520900170024)
国家自然科学基金项目(51777119)。
关键词
电网故障诊断
断路器失灵
连锁故障
电网拓扑
故障录波
power grid fault diagnosis
circuit breaker failure
cascaded failure
power grid topology
fault recording
