电流谐波对不同绕组形式永磁同步电机损耗研究

微特电机 ›› 2021, Vol. 49 ›› Issue (8): 12-15.

电流谐波对不同绕组形式永磁同步电机损耗研究

陈东锁^1,2,3, 陈彬^1,2, 肖勇^1,2, 王杜^1,2, 史进飞^1,2

1.广东省高速节能电机系统企业重点实验室,珠海 519070;
2.珠海格力电器股份有限公司,珠海 519070;
3.珠海凯邦电机制造有限公司,珠海 519070

收稿日期:2021-04-03 出版日期:2021-08-28 发布日期:2021-09-16

Research on Current Harmonic Effect on the Loss of Permanent Magnet Synchronous Motor with Different Winding Forms

CHEN Dong-suo^1,2,3, CHEN Bin^1,2, XIAO Yong^1,2, WANG Du^1,2, SHI Jin-fei^1,2

1. Guangdong Provincial Key Laboratory of High-speed and Energy Conservation Motor System, Zhuhai 519070, China;
2. GREE Electric Appliances, Inc. of Zhuhai, Zhuhai 519070, China;
3. Kaibang Motor Manufacturing, Inc. of Zhuhai, Zhuhai 519070, China

Received:2021-04-03 Online:2021-08-28 Published:2021-09-16

摘要/Abstract

摘要： 由PWM逆变器供电的永磁同步电动机定子电流中含有大量时间谐波,这些谐波作用于电机铁心和永磁体上产生损耗,不同绕组形式永磁同步电机受电流时间谐波的影响也不相同。建立集中绕组永磁同步电机和分布绕组永磁同步电机的有限元模型,将实测得到的PWM逆变器供电下电机的定子电流进行分解,得到各次电流谐波,并将电流谐波分别代入集中绕组电机和分布绕组电机进行仿真,研究谐波损耗对电机效率的影响,通过实验对比两种电机在电流谐波影响下的效率。

关键词: 永磁同步电机, PWM逆变器, 电流时间谐波, 永磁体损耗, 集中绕组电机, 分布绕组电机

Abstract: The stator current of a permanent magnet synchronous motor powered by a PWM inverter contains a large number of time harmonics,these harmonics act on the motor core and permanent magnets to produce losses,different winding forms of permanent magnet synchronous motors are differently affected by current time harmonics.Finite element models of concentrated winding permanent magnet synchronous motors and distributed winding permanent magnet synchronous motors were established, and the measured stator current of the motor under the power of the PWM inverter was decomposed to obtain the current harmonics,and the current harmonics were brought into concentrated winding motor and distributed winding motor loss simulation, analysis of the impact of harmonics on motor efficiency was carried out. The efficiency of the two motors under the influence of current harmonics was compared through experiments.

Key words: permanent magnet synchronous motor, PWM inverter, current time harmonics, permanent magnet loss, concentrated winding motor, distributed winding motor

中图分类号:

TM351

陈东锁, 陈彬, 肖勇, 王杜, 史进飞. 电流谐波对不同绕组形式永磁同步电机损耗研究[J]. 微特电机, 2021, 49(8): 12-15.

CHEN Dong-suo, CHEN Bin, XIAO Yong, WANG Du, SHI Jin-fei. Research on Current Harmonic Effect on the Loss of Permanent Magnet Synchronous Motor with Different Winding Forms[J]. Small & Special Electrical Machines, 2021, 49(8): 12-15.

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