带置信因子的变压器故障模糊诊断

Fault fuzzy diagnosis for transformers with confidence factors

为了解决电力变压器中故障诊断存在的大量随机性和模糊性问题,提出了一种基于置信因子的模糊诊断方法,建立的带置信因子变压器故障模糊诊断模型,用于科学地定量确认故障产生原因;通过确定置信因子和建立模糊综合评判信度,补偿评判中主观信度,实现故障诊断过程。应用实例证明该方法是有效,可行和可靠的,具有实际推广价值。

To solve large random and fuzzy problems of the fault diagnosis in power transformer, a fuzzy diagnosis method is brought forward, based on confidence factors. The transformer fault fuzzy diagnosis model built with confidence factors is used to quantitatively confirm the reason for producing faulty scientifically. Though compensation of subjective inter-scorers reliability carded out by established confidence factors and establishment of fuzzy synthesis evaluation inter-scorers reliability, the fault diagnosis is realized. The application example proves that the method is effective, feasible and reliable and has the value of practical popularization.