基于有限元仿真的电抗器遮雨帽结构参数优化  

Optimization of Structural Parameters of Reactor Rain Cover Based on Finite Element Simulation

作　　者：韩润泽 薛田良[1] 张磊[1] HAN Run-ze;XUE Tian-liang;ZHANG Lei(College of Electrical and New Energy,China Three Gorges University,Yichang Hubei 443002,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《计算机仿真》2025年第1期74-80,共7页Computer Simulation

基　　金：国家自然科学基金项目(52007103)。

摘　　要：为解决空心电抗器因局部温度过高而易引发过热、起火烧毁等故障的问题,提出一种基于有限元仿真的电抗器遮雨帽结构参数优化方法。首先,利用COMSOL有限元软件,根据某空心电抗器样机的参数,建立了空心电抗器流场-温度场三维仿真模型,获得电抗器温度场和流场的仿真结果。通过分析电抗器加装遮雨帽和隔音罩前后温度和空气流速分布变化,给出了这种情况下电抗器温升增加明显的原因。通过分析单层遮雨帽与双层遮雨帽结构下电抗器的温度场仿真结果,确定双层遮雨帽结构更有利于电抗器散热。通过采用正交试验设计的方法,使用有限元仿真模型,获得了不同结构参数的双层遮雨帽下电抗器温度场仿真结果。实验获得了最佳的双层遮雨帽结构参数,结果表明,在最佳的结构参数下,电抗器最高温度下降了9℃,优化方法对电抗器遮雨帽的结构参数优化具有重要的参考意义。In order to solve the problem that the air-core reactor is easy to cause overheating,fire burning and other faults due to the high local temperature,this paper proposes a structural parameter optimization method of reactor rain cover based on finite element simulation.Firstly,according to the design parameters of an air-core reactor prototype,a three-dimensional simulation model of the fluid-temperature field of the air-core reactor is established by using COMSOL finite element software,and the simulation results of the temperature field and flow field of the reactor are obtained.By analyzing the changes of temperature and velocity distribution before and after the installation of rain cover and sound insulation cover,the reasons for the obvious increase of reactor temperature rise in these two cases are given.By analyzing the temperature field simulation results of the reactor under the single rain cover and the double rain cover structure,it is determined that the double rain cover structure is more conducive to the heat dissipation of the reactor.By using the orthogonal experimental design method and the finite element simulation model,the temperature field simulation results of the reactor under different structural parameters are obtained.The results show that the maximum temperature of the reactor decreases by 14.2 C under the optimal structural parameters.The optimization method has important reference significance for the optimization of the structural parameters of the reactor rain cover.

关 键 词：有限元仿真 空心电抗器 遮雨帽 温度场 

分 类 号：TM47[电气工程—电器]