考虑磁储能变化的PMSM 饱和谐波模型

中国民航大学学报

考虑磁储能变化的PMSM 饱和谐波模型

曹博书¹，宋剑²，陈斌¹

（1. 中国民航大学飞行技术学院，天津300300；2. 中国南方航空股份有限公司机务工程部，广州510470）

收稿日期:2017-10-20 修回日期:2017-11-29 出版日期:2018-06-24 发布日期:2018-06-26
作者简介:曹博书（1987—），男，辽宁沈阳人，硕士，助教，研究方向为飞行仿真.
基金资助:
中央高校基本科研业务费专项（3122014X003）

PMSM mathematical model considering magnetic saturation, field harmonics and magnetic energy storage changes

CAO Boshu¹, SONG Jian², CHEN Bin¹

(1. College of Flight Technology, CAUC, Tianjin 300300, China; 2. Aircraft Maintenance Engineering Department, China Southern Airlines Co. Ltd., Guangzhou 510470, China)

Received:2017-10-20 Revised:2017-11-29 Online:2018-06-24 Published:2018-06-26

摘要/Abstract

摘要： PMSM 在重载条件下存在磁饱和效应，磁场谐波畸变严重，同时齿槽位置对应磁储能的改变影响了电磁转矩谐波分量，使传统的PMSM 饱和谐波模型失真严重。根据电磁转换机理推导完善了考虑磁储能变化的饱和谐波计算公式，利用有限元法提取不同交直轴电流条件下电机的饱和电感、永磁体等效激磁电流及磁场谐波参数。在Matlab 仿真平台上建立了电机模型并与有限元分析结果进行对比。结果表明，与传统饱和谐波模型相比，该模型大幅提高了电磁转矩谐波的模拟程度，为PMSM 重载谐波特性研究提供了更加准确的模型依据。

关键词: 永磁同步电机, 磁场谐波, 磁饱和, 磁储能, 转矩谐波

Abstract: Magnetic saturation, field harmonics distortion and changes of magnetic energy storage will cause conventional model distort in heavy load condition of PMSM. The magnetic energy storage change effect is considered and reformed formula of counter electromotive force and torque of PMSM is introduced. A given motor is electromagnetically analyzed using finite element software Ansys EM and cross saturation inductance curves, demagnetization curves and harmonic parameter are extracted. A nonlinear d-q axis motor model is established and tested on Matlab simulation platform based on extracted parameters. Result shows that the reformed model can reflect the electromagnetic torque harmonics of the PMSM much more accurately than the conventional one. Therefore a more accurate PMSM model basis is designed and tested for characteristics of PMSM drive research in heavy load.

Key words: PMSM, field harmonics, magnetic saturation, magnetic energy storage, electromagnetic torque harmonics

中图分类号:

曹博书，宋剑，陈斌. 考虑磁储能变化的PMSM 饱和谐波模型[J]. 中国民航大学学报.

CAO Boshu, SONG Jian, CHEN Bin. PMSM mathematical model considering magnetic saturation, field harmonics and magnetic energy storage changes[J]. .