2 MW直驱永磁风力发电机参数化分析与仿真

Analysis on and Simulation of 2 MW Permanent Magnet Direct-drive Wind Turbine Generator

本文分析了风力机的发展趋势与风力发电系统,重点研究了磁极参数对直驱发电机的影响,推导出永磁体磁化方向厚度、空载磁密、电感、铁耗、永磁体极弧系数之间的数学参数模型。最后,通过Matlab对2MW风力机磁极参数、最大风能跟踪系统进行分析、计算与仿真,其结果证明了磁极参数化的正确性,为发电机电磁设计提供依据。

This paper presents the trend in development of wind turbine generator and wind power generation system,with focus on the effect of magnetic parameters on direct drive generator,deducing a mathematical model with respect to permanent magnet magnetization direction of magnetic density,thickness,no load inductance,iron loss,permanent magnet pole arc coefficient.Finally,the magnetic pole parameters and the maximum wind energy tracking system of2MW wind turbine are analyzed,calculated and simulated by Matlab.The result proves the correctness of the magnetic pole parameterization,and provides reference for electromagnetic design of wind turbine generators.