11 years' persistence, over 10 million tests, 150G accumulated data, and 100 million yuan investment… CSR Zhuzhou Institute Co. Ltd has mastered the traction technique of IPMSM (Interior Permanent Magnet Synchronous Motor). With the proprietary intellectual property right of this system, Chinese high-speed rail has gained another advantage on the market.

On May 16, 2015, IPMSM was successfully put into use in subway line 1 in Changsha, marking the first time for the traction system of IPMSM to be used in in China.

Ding Rongjun, an academician of Chinese Academy of Engineering and the general manager of Zhuzhou Insititute, says that Zhuzhou will start production of the 690 kW traction system of IPMSM, which can be used on high speed trains running 500 kilometers per hour. This signifies that China is now one of the few countries in the world that have mastered the technique of IPMSM for high-speed rail.

"China's era of 'traction system of IPMSM' for rail transportation has finally come," said Ding.