定子永磁型磁通切换电机齿槽转矩及其抑制技术

发布时间：2018-05-27 09:19

本文选题：永磁电机 + 磁通切换　；参考：《中国电机工程学报》2017年21期

【摘要】：齿槽转矩是永磁电机特有的问题之一,其产生原因是在不通电的情况下永磁体与有槽铁心的相互作用。磁通切换永磁电机作为永磁电机的一种,由于其特有的双凸极结构和聚磁效应,导致该电机的齿槽转矩比常规转子永磁型电机大,从而引起电机转矩脉动、振动和噪声,尤其会影响电机低速时的性能。首先介绍了磁通切换永磁电机齿槽转矩的产生机理,在此基础上介绍了解析法和有限元法这两种通用的齿槽转矩抑制方法,并总结了其各自优点和缺点。针对磁通切换永磁电机这一特定电机类型,从本体角度分析各种抑制齿槽转矩的研究方法,并进行了总结。讨论了在电机设计初始阶段的一些抑制措施和辅助的方法,如斜极、辅助槽和削角等。最后,对该电机齿槽转矩未来的研究方向进行了展望。
[Abstract]:Grooving torque is one of the special problems of permanent magnet motor, which is caused by the interaction between permanent magnet and slotted iron core without electrification. As a kind of permanent magnet motor, flux-switched permanent magnet motor (PMSM) is a kind of permanent magnet motor. Because of its unique double salient structure and magnetic accumulation effect, the torque of this motor is larger than that of conventional rotor permanent magnet motor, which causes torque ripple, vibration and noise. In particular, it will affect the performance of the motor at low speed. This paper first introduces the generation mechanism of slot torque of flux switched permanent magnet motor, and then introduces two common methods of tooth groove torque reduction, analytical method and finite element method, and summarizes their respective advantages and disadvantages. Aiming at the special type of permanent magnet motor (PMSM), the research methods of reducing the torque of tooth slot are analyzed and summarized from the viewpoint of body. Some restraining measures and auxiliary methods in the initial stage of motor design, such as inclined pole, auxiliary slot and angle, are discussed. Finally, the future research direction of the gear slot torque of the motor is prospected.
【作者单位】：东南大学电气工程学院;
【基金】：重点基础研究发展计划项目(973项目)(2013CB035605) 中央高校基本科研业务费专项资金资助项目(2242016K41004)~~
【分类号】：TM351

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