基于FTA的箱式变电站故障诊断系统研究

The fault diagnosis system of box- type transformer substation based on FTA

鉴于箱式变电站在工商业及城镇输配电系统中的重要性,完善箱式变电站故障诊断技术具有重要的意义。针对箱式变电站故障诊断的特点,本文运用故障树分析技术对箱式变电站故障诊断技术进行了研究,应用可信度方法对故障诊断进行了不确定性处理,并运用最小割集故障系数的概念改进故障树分析中的最小割集诊断法,提高故障诊断的效率。最后,本文以故障实例检验了该故障诊断系统的运行效果。

Considering that box- type transformer substation is so important in the commercial and industrial power transmission and distribution system in urban place, improving the technology of box-type substation fault diagnosis has important significance. To solve this problem, this paper does some research on fault diagnosis technology of the box- type transformer substation using fault tree analysis technology, to deal with the uncertainty of the fault diagnosis, this paper introduces the method of credibility, to improve the efficiency of fault diagnosis, this paper improves the minimal cut sets diagnosis method using fault coefficient of the minimal cut sets in the fault tree diagnosis. At the end of this paper, we test the performance of the fault diagnosis system by diagnosing a fault case.