基于DGA的变压器在线监测与故障诊断方法研究

Research on Transformer Online Monitoring and Fault Diagnosis Method Based on DGA

变压器作为智能电网运行的核心设备,变压器的运行状态直接决定整个电力系统运行的安全性和可靠性。因此,变压器在线监测和故障维护也变得越来越重要。DGA作为油中溶解气体分析方法,在变压器的故障诊断中起着重要作用,可以实时监测变压器的运行状态,提高变压器的故障诊断效率。基于此,对基于DGA的变压器故障诊断方法进行了分析,结合变压器故障维护的实际情况,提出了基于DGA的变压器在线监测和故障诊断的设计方法,并进行了研究。

As the core equipment of smart grid operation,transformer operation status directly determines the security and reliability of the entire power system operation,so transformer on-line monitoring and fault maintenance are becoming more and more important.DGA,as a dissolved gas analysis method in oil,plays an important role in transformer fault diagnosis.It can monitor the operation status of transformer in real time and improve the efficiency of transformer fault diagnosis.In this paper,the method of transformer fault diagnosis based on DGA is analyzed.According to the actual situation of transformer fault maintenance,the design method of transformer online monitoring and fault diagnosis based on DGA is proposed and studied.