电力变压器中局部放电声波传播的有限元仿真和理论分析  

Finite Element Simulation of the Partial Discharge Acoustic Wave Propagation inside Power Transformers

作　　者：李喆[1] 肖登明[2] 刘奕路[2] 

机构地区：[1]陕西汉中供电局,陕西汉中723000 [2]上海交通大学,上海200030

出　　处：《高压电器》2004年第5期333-334,共2页High Voltage Apparatus

基　　金：国家自然科学基金资助项目(50128706)

摘　　要：测量变压器内局部放电产生的声波能用于电力变压器的监测、诊断和故障定位。建立了局部放电声波传播的有限元分析(FEA)仿真模型。利用简化的模型,分析了声波传播的特性。局部放电声波传播仿真的结果与PZT传感器的实验室结果比较,显示了较好的一致性。The acoustic waves induced by PD could be measured and used for monitoring, diagnosis and locating of the potential failures in power transformers. In this paper, Finite element analysis(FEA) simulation models for partial discharge acoustic wave propagation are built. The behavior of the acoustic wave propagation using the simplified models is analyzed. The PD acoustic wave propagation simulation results are compared with experiment using PZT sensors. The theoretical derivations and computer simulations show consistency with experiment results in 1-D case.

关 键 词：电力变压器 局部放电 有限元分析 声波传播 

分 类 号：TM41[电气工程—电器]