考虑损耗的表贴式永磁同步电机极弧系数优化

微特电机 ›› 2022, Vol. 50 ›› Issue (4): 15-19.

考虑损耗的表贴式永磁同步电机极弧系数优化

刘保泉¹, 张洪信^1,2, 魏士文¹

1.青岛大学机电工程学院,青岛 266071;
2.青岛大学电动汽车智能化动力集成技术国家地方联合工程研究中心,青岛 266071

收稿日期:2021-11-22 出版日期:2022-04-28 发布日期:2022-05-06
作者简介:刘保泉(1994—),男,硕士研究生,研究方向为车辆新型动力传动技术及其智能化。
基金资助:
国家自然科学基金项目(52075278)

Optimization of the Pole-Arc Coefficient of Surface-Mounted Permanent Magnet Synchronous Motors Considering Losses

LIU Baoquan¹, ZHANG Hongxin^1,2, WEI Shiwen¹

1. College of Mechanical and Electrical Engineering,Qiandao University,Qingdao 266071,China;
2. National and Local Joint Engineering Research Center for Electric Vehicle Intelligent Power Integration Technology,Qingdao 266071,China

Received:2021-11-22 Online:2022-04-28 Published:2022-05-06

摘要/Abstract

摘要： 为了提高车用永磁同步电机的综合性能,提出了一种主要考虑铁心损耗、兼顾输出转矩峰峰值和结构体积的永磁体极弧系数优选方法。以电机输出转矩不变作为约束条件,以定子损耗、永磁体体积、输出转矩峰峰值综合最优为目标函数,对永磁体极弧系数进行优化。结果显示,对定子铁心损耗计算时,将磁通密度正交分解并进行频域分解后的数据进行求解,误差较小;极弧系数优化到0.74时,电机综合性能达到最优。对后续永磁同步电机的设计、极弧系数的选择和优化等方面提供依据。

关键词: 永磁同步电机, 损耗, 极弧系数, 优化

Abstract: In order to improve the comprehensive performance of the automotive permanent magnet synchronous motor, a method was proposed to optimize the pole-arc coefficient of permanent magnets mainly considering the core loss and taking into account the peak-to-peak output torque and structure volume. The output torque of the motor was kept constant as a constraint, and the stator loss, the volume of the permanent magnet and the peak value of the output torque were used as the objective functions to optimize the pole-arc coefficients of the permanent magnets. The results show that when the stator core losses are calculated by orthogonal decomposition of the magnetic flux density and frequency domain decomposition of the data for the solution, the error is small. When the optimized pole-arc coefficient is 0.74, the comprehensive performance of the motor is optimal. The results could provide a basis for the subsequent design of permanent magnet synchronous motors and the selection and optimization of the pole-arc coefficient.

Key words: permanent magnet synchronous motor, loss, pole arc coefficient, optimization

中图分类号:

TM351

刘保泉, 张洪信, 魏士文. 考虑损耗的表贴式永磁同步电机极弧系数优化[J]. 微特电机, 2022, 50(4): 15-19.

LIU Baoquan, ZHANG Hongxin, WEI Shiwen. Optimization of the Pole-Arc Coefficient of Surface-Mounted Permanent Magnet Synchronous Motors Considering Losses[J]. Small & Special Electrical Machines, 2022, 50(4): 15-19.

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