基于电磁-温度耦合方法的永磁驱动器温度场分析  

Thermal Analysis of Axial-Flux Permanent Magnet Couplers Using Electromagnetic-Thermal Coupling Method

作　　者：郑迪[1] 王大志[1] 李硕[1] 于林鑫 ZHENG Di;WANG Da-zhi;LI Shuo;YU Lin-xin(School of Information Science&Engineering,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2018年第4期457-461,共5页Journal of Northeastern University(Natural Science)

基　　金：中央高校基本科研业务费专项资金资助项目(N160406001)

摘　　要：基于电磁-温度场耦合方法,分析了盘式永磁驱动器的温度场.基于电磁场解析计算建立了盘式永磁驱动器的电磁场解析模型,推导了涡流损耗公式.计算了热阻和散热系数,并以涡流损耗为热源,建立了盘式永磁驱动器等效热网络模型.预测随负载变化时盘式永磁驱动器的涡流损耗和铜盘温度的变化.解析结果与有限元结果比较表明:基于电磁-温度场耦合方法所建立的电磁场解析模型和温度场解析模型能快速、准确地预测涡流损耗和铜盘温度.The temperature of axial-flux permanent magnet couplers was analyzed using the electromagnetic-thermal coupling method.On the basis of analytical magnetic field calculation,a magnetic field analytical model of the axial-flux permanent magnet couplers was presented to derive the eddy current loss form ula.The thermal resistance and heat transfer coefficient were calculated,and a thermal model of axial-flux permanent magnet couplers was established by taking the eddy current loss as the heat source.The electromagnetic-thermal coupling method was analyzed to predict the effect of various loads on eddy current loss and copper plate temperature rise.The analytical results compared w ith the finite element results showed that the magnetic field analytical model and the thermal model of axial-flux permanent magnet couplers using electromagnetic-thermal coupling method could predict the eddy current loss and the copper plate temperature rise reasonably and quickly.

关 键 词：永磁驱动器 电磁-温度场 耦合分析 电磁场解析计算 等效热网络 

分 类 号：TH133[机械工程—机械制造及自动化]