High-speed, High-efficiency, Explosion-proof Rare Earth Permanent Magnetic Synchronous Motor Research

This paper develops partial contents of project ---"The High Speed Highly Effective Explosion-proof Rare Earth Permenet Magnet Machine Research", which is one of the national 863 plans.Revolved tightly the high speed highly effective increased-safety rare earth permanent magnetic synchronous motor's design, the paper researches thoroughly in the two-pole rotor structure, the electromagnetic field and the key explosion-proof parameter time t_E etc., also completes the design and the performance test experiments of a two-pole increased-safety rare earth permanent magnetic synchronous motor.This article main research results are given as follows:1. Based on thoroughly discussing on the rotor structure of rare earth permanent magnetic synchronous motor, a novel two-pole rotor structure has been designed and simulated.2. By detailedly analysed the caking structure stress of tile shape rare earth permanent magnet of rare earth permanent magnetic direct current motor, a high reliability, good anti-impact performance cementation structure is proposed.3. The paper takes the skin effect and radiation factors into account and brings forward a set of rotor time theoretical calculation method, Then proposes effective actions for being advantageous in lengthening the time t_E and decreasing the rotor temperature from the design aspect.4. A high speed highly effective increased-safety rare earth permanent magnetic synchronous motor is designed, and the starting performance is simulated and analysed. Finally, the motor test has been done.