Research and development of Non Rare-Earth Permanent Magnet Design-Oriented Electric Machines for Electric Vehicles

本文提出了混合动力汽车用SMC铁心绕组励磁无刷同步电机驱动性能的可能性。所提出的电机没有电刷或滑环，采用稀土磁体，只使用绕线磁场励磁。概述了该机的结构和基本工作原理。设计目标是最大功率大于123kW，最大功率密度大于3.5kW/kg的电机。基于3D-FEA对所设计的机床进行了性能分析，结果表明该机床达到了设计指标要求。最后，给出了在小试样机上的一些实验结果。

This paper presents drive performance possibilities of brushless synchronous machine with wound-field excitation using SMC core for HEV applications. The proposed machines have no brush or slip ring, rare-earth magnet and employs only wound-field excitation. The structures and the basic working principles for the machine are overviewed. The design target is the motor with maximum power more than 123kW and maximum power density more than 3.5kW/kg. The performance analyses of the designed machines based on 3D-FEA show that the machine meet the target requirements. Finally, some experimental results using a tested down scale machine are demonstrated.