基于有限元仿真的配电变压器绕组短路故障在线检测方法研究  

Research on Online Detection Method for Short Circuit Fault of Distribution Transformer Winding Based on Finite Element Simulation

作　　者：梁辉平 LIANG Huiping(Foshan Xiangdian Electric Power Design Engineering Co.,Ltd.,Foshan 528000,Guangdong,China)

机构地区：[1]佛山祥电电力设计工程有限公司,广东佛山528000

出　　处：《工程技术研究》2025年第2期40-42,共3页Engineering and Technological Research

摘　　要：变压器作为电网电压调节的重要设备,对电网的稳定、安全运行起关键作用。为了解决传统人工变压器绕组短路故障检测效率低的问题,文章基于有限元法提出一种在线配电变压器绕组短路故障检测方法,通过对变压器绕组短路特征构建分析模型。有限元仿真分析中,短路阻抗、负载损耗、空载损耗等与实测值接近,最大相对误差均在4.50%范围,表明该模型具有可靠性。当变压绕组出现短路时,其有功损耗、电流值均明显升高。可见,对变压器进行数值模拟分析,能有效判断变压器故障特征,为电力变压器的检测与维护提供技术支持。As an important equipment for power grid voltage regulation,transformer plays a key role in the stable and safe operation of power grid.In order to solve the problem of low efficiency of traditional manual transformer winding short circuit fault detection,this paper proposes an online distribution transformer winding short circuit fault detection method based on the finite element method by constructing an analysis model for the short circuit characteristics of the transformer winding.In thefinite element simulation analysis,the short circuit impedance,load loss,and no-load loss are close to the measured values,and the maximum relative errors are in the range of 4.50%,indicating that the model is reliable.When the short circuit occurs in the transformer winding,the active loss and current value are significantly increased.It can be seen that the numerical simulation analysis of the transformer can effectively judge the fault characteristics of the transformer and provide technical support for the detection and maintenance of the power transformer.

关 键 词：变压器 绕组短路 有限元检测 

分 类 号：TM421[电气工程—电器]