日本铁路机车车辆传动用永磁同步电动机的研发概况

R & D of Permanent-magnetic Synchronous Motor for Railway Locomotives and Rolling Stocks in Japan

20世纪70年代铁-钕-硼磁性材料的成功开发,加上电力电子技术的不断发展,永磁同步电动机又引起了人们的注意,它不仅与异步电动机同样具有牵引电动机所需的特点,而且还可以比异步电动机的效率更高、体积和重量更小。日本从1990年开始研发用永磁同步电动机作为直接传动的牵引电动机和全封闭式电动机,并试验用于通勤电车、轨距可变电动车组和低地板轻轨车辆乃至新干线高速电动车组上。

With the successful development of the material iron-neodymium-boron, and with the continuous development of power electronics, the permanent-magnetic synchronous motor attracts people＇s attention again, It owns the same characteristics as the synchronous motor when acting as traction motor. Besides, it features higher efficiency and lower volume and weight than the synchronous motor. Starting from 1990, the permanent-magnetic synchronous motor has been developed as traction motor and fully-enclosed motor for direct drive in Japan, and has been applied to commuter electric vehicle, EMU with variable rail distance, low-floor light rail vehicle and even Shinkansen high-speed EMU.