摘  要：研究了2 MW永磁同步风力发电机的某些设计参数对齿槽转矩的影响。研究表明槽数和极数配合对齿槽转矩有重要影响，它也影响最佳斜槽和最佳极弧系数，也决定了辅助齿槽的最佳数值。该文引入了一个与槽数和极数成比例，而与它们的最小公倍数成反比例的利益因子来表示槽数和极数配合的好处。一般说来，利益因子越大，齿槽转矩也越大。仿真结果证明了提出方法的效果。
关键词：齿槽转矩；永磁；同步发电机；电机设计

Abstract: The influence of certain design parameters on cogging torque developed by 2MW permanent magnet synchronous wind power generator was investigated.It is shown that the slot and pole number combination has a significant influence on cogging torque,and influences the optimal value of both skew angle and magnet arc,as well as determines the optimal number of auxiliary teeth/slots.A simple factor, which is proportional to their smallest common multiple,has been introduced to specify the “goodness” of the slot and pole number combination.In general,the higher the “goodness” factor the larger the cogging torque.The simulation results verify the effect of the proposed method.
Key Words:Cogging torque;Permanent magnet;Synchronous generator;Electric machine design