永磁直驱同步风力发电机电磁设计及仿真分析

Key Points of Electromagnetic Design for Permanent Magnet Synchronous Direct-Drive Wind Generator and Its Simulation Analysis

介绍了3MW永磁直驱同步风力发电机电磁设计参数要点的选取,尤其是对不同每极每相槽数下发电机的性能进行了对比仿真分析。列举了3MW永磁直驱同步风力发电机的主要技术参数,并通过有限元分析软件对所设计发电机的空载特性、负载特性及短路特性进行了仿真计算分析,并对三相短路状态下永磁体是否会发生不可逆退磁进行了验证。

This paper introduces key points to select electromagnetic design parameters of 3MW permanent magnet synchronous direct-drive wind generator,especially for the comparison simulation analysis on performance of generator with different slot numbers per pole per phase. This paper lists main technical parameters of the generator and carries out simulation analysis and calculation on no-load,load and short circuit characteristics of the designed generator by finite-element analysis software. It is verified that whether permanent magnets will irreversibly demagnetized in the condition of three-phase short circuit.