Abstract：The design and manufacturing process of drive motors for electric vehicles is becoming more and more consummate. It is difficult to increase the efficiency of motors only by improving motor design. Amorphous alloy is a new type of functional material. It has the advantages of high magnetic permeability, low loss, and low coercive force. Applying it to the stator core of the motor can reduce stator iron loss and improve motor efficiency. In order to study the effect of amorphous and silicon steel on electric machines in electrical vehicles, the performance calculations of two identical structures and stator cores using silicon steel and amorphous permanent magnet synchronous motors were conducted in this paper. The comparison of silicon steel motors and amorphous motors was performed. The distribution of magnetic density and iron loss were calculated. Then two motors were tested to obtain the MAP of the efficiency. The results show that in the high speed region, the amorphous motor has the advantages of lower iron loss and higher efficiency than the silicon steel motor, while its advantage is less at low speed and high torque region.
朱健, 曹君慈, 刘瑞芳, 丁宇行. 电动汽车用永磁同步电机铁心采用非晶合金与硅钢的性能比较[J]. 电工技术学报, 2018, 33(zk2): 352-358.
Zhu Jian, Cao Junci, Liu Ruifang, Ding Yuhang. Comparative Analysis of Silicon Steel and Amorphous on the Performance of Permanent Magnet Synchronous Motors on Electric Vehicles. Transactions of China Electrotechnical Society, 2018, 33(zk2): 352-358.
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2018, Vol. 33 
