基于永磁体三角型排列的永磁同步电动机特性分析  

Characteristic Analysis of Permanent Magnet Synchronous Motor Based on the Triangle Shaped Permanent Magnet

作　　者：宋国辉[1] 钟再敏[1] 王心坚[1] 

机构地区：[1]同济大学,上海201804

出　　处：《微特电机》2013年第4期7-9,共3页Small & Special Electrical Machines

基　　金：中央高校专项资金(1024720110000);国家自然科学基金(51075301);国际科技合作计划(2010DFA72760-306)

摘　　要：车用永磁同步电动机要求具有较高的转矩密度和功率密度,同时对电机的转矩脉动提出了一定的限制。工程上常用定子斜槽的方式削弱转矩脉动,但是会造成转矩损失。通过改变转子结构抑制转矩脉动非常必要。提出一种三角形的转子永磁体排列形式,分析了该种结构的原理及其对电机转矩脉动的抑制作用。Permanent magnet synchronous motor used in vehicles has high torque density and power density, and it puts forward certain restriction for torque ripple. Common method used to weaken the torque ripple in engineering was stator skew which produced torque loss. Changing the rotor structure was necessary to reduce the torque ripple. A kind of triangle rotor structure was presented and the theory of its inhibition effect to torque ripple was analyzed .

关 键 词：永磁同步电动机 转矩脉动 三角形结构 定子斜槽 

分 类 号：TM351[电气工程—电机]