基于GA-LM算法的材料磁特性模型特征参数辨识及变压器振动特性分析  

Identification of Characteristic Parameters of Material Magnetic Property Model and Analysis of Transformer Vibration Characteristics Based on GA-LM Algorithm

作　　者：郭淳 黄丰 李煜 李旭鑫 张仁杰 GUO Chun;HUANG Feng;LI Yu;LI Xuxin;ZHANG Renjie(Chaozhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Chaozhou 515600,China;College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443000,China)

机构地区：[1]广东电网有限责任公司潮州供电局,广东潮州515600 [2]三峡大学电气与新能源学院,湖北宜昌443000

出　　处：《湖南电力》2024年第5期74-80,共7页Hunan Electric Power

基　　金：南方电网公司科技项目(035100KC23070004(GDKJXM20230768))。

摘　　要：针对油浸式变压器的安全稳定运行问题,提出一种基于多物理耦合的油浸式变压器振动计算方法。首先,基于经典J-A磁滞理论建立模型,结合实验测量数据进行参数辨识,采用遗传-最小二乘优化算法获得模型的特征参数。在此基础上,基于有限元仿真软件,建立电磁-结构多物理场耦合模型,并将辨识得到的特征参数带入模型中进行计算,得到油浸式变压器正常工况下的磁场分布和振动位移分布,为油浸式变压器振动的准确计算提供依据。A vibration calculation method for oil immersed transformers based on multi physics coupling is proposed to address the issue of safe and stable operation.Firstly,a model is established based on the classical J-A hysteresis theory,and parameter identification is carried out by combining experimental measurement data.The genetic least squares optimization algorithm is used to obtain the characteristic parameters of the model.On this basis,based on finite element simulation software,an electromagnetic structural multi physics field coupling model is established,and the identified characteristic parameters are introduced into the model for calculation.The magnetic field distribution and vibration displacement distribution of the oil immersed transformer under normal operating conditions are calculated,providing a basis for accurate calculation of the vibration of the oil immersed transformer.

关 键 词：油浸式变压器 多物理场耦合 磁特性辨识 磁场 振动位移 

分 类 号：TM41[电气工程—电器]