Abstract
This paper describes the development of the new propulsion system utilizing permanent magnet synchronous motor for high-speed train over 400km/h speed. Development concept and feature of the developed equipment is described in detail. High efficiency of the permanent magnet synchronous motor enables to employ the self-ventilation with the equivalent size to that of the forced ventilation induction motor and to save the motor blower space. The test result shows the motor efficiency reaches 97% and the developed system has adequate output power required to high speed train over 400km/h speed.
