基于信息融合技术的电力变压器故障部位诊断

APPLICATION OF INFORMATION FUSION BASED ON DEMPSTER-SHAFER'S EVIDENCE THEORY TO THE DIAGNOSIS OF TRANSFORMER'S FAULT POSITION

首先对变压器故障诊断中的可用信息进行分类,然后在分析目前诊断信息欠缺的基础上,提出信息融合诊断的思想,并针对变压器故障部位诊断,探讨了识别框架的形成、基本概率赋值函数的构造以及运用D-S证据理论进行证据组合与推理的过程,并用实例验证了该方法的有效性。

First,the useful in formation of transformer faults is divided into several parts.Based on the analy sis of the shortcoming of current diagnose information,this paper puts forward a n idea of information fusion.Aiming at diagnosis of transformer fault position,a nd discusses how to form identification frame,how to construct basic probability assignment and how to synthesize and reason corresponding evidences.It is prove d to be a feasible and useful method to diagnose fault position in transformers.