Abstract：In this paper, the loss of a new low speed vernier machine is calculated based on the 2D time-stepping finite element method. The eddy current losses in the permanent magnet(PM) and the outer aluminum case are taken special consideration. For the eddy current loss in PM, the 3D time-stepping method is compared with the 2D one and the key points for the calculation of eddy loss in PM is highlighted. For the eddy current loss in the outer aluminum case, different influence parameters are analyzed and the method to reduce it is proposed. The calculated no-load loss is verified by experiment on a prototype machine. The loss calculations under different load conditions are also carried out. At the last, the influence of temperature variation on the loss characteristics is also analyzed.
作者简介: 朱洒 男,1990年生,博士研究生,主要研究方向为电机多物理场分析,电机损耗计算。程明 男,1960年生,博士,教授,博士生导师,IEEE Fellow, IET Fellow,主要研究方向为电机系统及控制,新能源发电,电动车驱动控制。
引用本文:
朱洒,程明,李祥林,李顺. 新型外转子低速直驱永磁游标电机的损耗[J]. 电工技术学报, 2015, 30(2): 14-20.
Zhu Sa,Cheng Ming,Li Xianglin,Li Shun. Loss Analysis of a New Low-Speed Direct-Drive Permanent-Magnet Vernier Machine. Transactions of China Electrotechnical Society, 2015, 30(2): 14-20.
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