无取向硅钢磁性能对电动汽车电机性能的影响  

Effect of Non-oriented Silicon Steel With Different Thickness on Properties of Electric Motor for EV

作　　者：石文敏[1,2] 刘静[2] 冯大军 曹海东[3] 

机构地区：[1]国家硅钢工程技术研究中心,湖北武汉430080 [2]武汉科技大学,湖北武汉430081 [3]上海大学,上海200072

出　　处：《武汉工程职业技术学院学报》2015年第2期7-12,共6页Journal of Wuhan Engineering Institute

摘　　要：随着电动汽车的快速发展,永磁同步电机以其高效率和高功率密度逐渐成为电动汽车驱动电机的主流选择.研究给出了三种厚度规格无取向硅钢片材料磁化曲线和铁损曲线,并采用有限元分析软件模拟得出了电动汽车电机电感,反电动势、效率、转矩、电机铁损、电流等关键参数,由实验明确材料的磁感越高,电机的负载转矩越高,电机的脉动转矩越低,电机电感也越高;材料的铁损越低,装机后电机的总铁损也越低,电机效率也越高,尤其是在高转速区效率优势更为明显。The IPSPM featuring high efficiency and high power density is becoming the major selection for EV motor with the rapid development of EV. In this paper,the magnetization curve and iron loss curve of three kinds of non oriented silicon steel were described. The critical parameters, such as inductance, back electromotive force, efficiency, torque, iron loss of motor, circuit, were calculated and estimated by the Ansoft software（finite element method）. The results show that the loading torque and inductance increase with the increase of the magnetic induction,but the ripple torque decreases. With the decrease of iron loss of the material, the iron loss of the motor decreases, and the efficiency is higher especially in the high-speed zone.

关 键 词：永磁同步电机 无取向硅钢 有限元分析 效率 转矩 铁损 磁性能 

分 类 号：TM275[一般工业技术—材料科学与工程]