摘要
针对内置式永磁驱动电机功率密度高、工作环境差、体积和散热面积小而引起的绕组易烧损、磁钢易退磁等问题,分析了车用永磁驱动电机损耗随工况的变化规律以及损耗分布情况,并利用有限元计算软件,建立内置式永磁驱动电机的3-D流固耦合有限元模型,计算分析了电机在不同运行工况下的温升大小和分布情况。制造了实验样机,实验测试了样机在额定工况下的绕组和磁钢温升,并与仿真结果对比,验证了有限元仿真的准确性。
Aiming at the problem of winding burning and demagnetization of the interior permanent magnet synchronous motor（IPMSM） because of the large power density,poor working environment,small size and heat dissipation area,the loss value and distribution of IPMSM in different working conditions were analyzed.Temperature rise and distribution of the motor under different operating conditions were calculated and analyzed by building the 3-D FEM model.The prototype was manufactured and the the temperature rise of the prototype was tested. The experimental results were compared with the simulation results which proved the accuracy of method and feasibility of finite element method..
作者
刘金辉
李丹妮
蔡巍
LIU Jin- hui;LI Dan-ni;CAI Wei(Navy Submarine Academy,Qingdao 266199,China)
出处
《微特电机》
2018年第6期5-8,14,共5页
Small & Special Electrical Machines
关键词
电动汽车
内置式永磁驱动电机
温度场
有限元法
electric vehicles（EVs）
interior permanent magnet synchronous motor（IPMSM）
temperature field
FEM
