摘要
在变电站故障诊断方法中,以往的方案只能找出误动和拒动的保护、断路器而不能找出导致其误动和拒动的具体原因。为了提高电力系统安全可靠性,增强供电的连续可靠性,预防恶性停电事故的发生,本文研究了溯因故障树用于变电站故障的溯因诊断。文章首先对故障树分析法的相关理论进行了介绍,接着构建了保护、断路器拒动和误动溯因故障树,直观地描述了变电站发生这三类故障时的各级原因,并从定性与定量两个方面对故障树做相关分析。最后本文采用了实例分析的方法验证了方案的有效性。
In the past, the fault diagnosis method can only find out the malfunction protection and circuit breakers, while can not identify the specific causes of protection and incorrect acts of circuit breakers. In order to improve safety and reliability of power system, enhance the continuous reliability of power supply and prevent vicious power outage, this paper presents the method of diagnosing the specific cause of substation fault by using fault tree. Firstly, this pa- per introduces the theory of fault tree analysis method, then based on the understanding of the meaning of the fault a- larm signal, this paper builds the fault tree of circuit breaker and protection to show the reasons at all levels of this three substation failure, and analyzes on the fault tree this paper verifies the validity of the program through from two aspects of qualitatively and quantitatively. In the end, actual examples.
出处
《电测与仪表》
北大核心
2016年第4期25-32,共8页
Electrical Measurement & Instrumentation
关键词
变电站故障
溯因故障树
溯因诊断
substation fault, fault tree, abductive diagnosis
