基于变压器DGA广义灰色故障诊断

Generalized Grey Incidence on Transformer DGA Fault Diagnosis

电力变压器是电力系统中最重要的电气设备之一。变压器油中溶解气体分析是变压器故障诊断的重要手段。故障征兆和故障类型之间存在复杂的非线性关系决定了传统的方法难以完全满足工程应用的要求。本研究提出一种改进面积广义灰色关联度来分析序列之间的相似性与相近性,以期能有效诊断变压器的故障类型。

Power transformer is one of the most important equipments in the electric system. Dissolved Gases Analysis is an important method in diagnosis of the internal transformer's fault. Because fault sign and fault type have complicate nonlinear relation, the traditional methods can not exactly meet need to engineer application. Generalized Grey Incidence in area is given to analyze the comparability and the proximity of the sequence. It is proposed that it has the efficiency to diagnose the type of transformer f...