考虑永磁体不可逆退磁的磁齿轮复合电机设计

微特电机 ›› 2021, Vol. 49 ›› Issue (1): 5-9.

考虑永磁体不可逆退磁的磁齿轮复合电机设计

陈彬^1,2,3, 肖勇^1,2,3, 李权锋³, 刘美扬³

1.空调设备及系统运行节能国家重点实验室,珠海 519070;
2.广东省制冷设备节能环保技术企业重点实验室,珠海 519070;
3.珠海格力电器股份有限公司,珠海 519070

收稿日期:2020-10-30 出版日期:2021-01-28 发布日期:2021-01-25
作者简介:陈彬(1986—),男,高级工程师,研究方向为永磁电机及其控制。

Design of Magnetically Geared Machine Considering the Irreversible Demagnetization of the Permanent Magnet

CHEN Bin^1,2,3, XIAO Yong^1,2,3, LI Quan-feng³, LIU Mei-yang³

1. State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation,Zhuhai 519070,China;
2. Guangdong Key Laboratory of Refrigeration Equipment and Energy Conservation Technology,Zhuhai 519070,China;
3. Gree Electric Appliances, Inc.of Zhuhai,Zhuhai 519070,China

Received:2020-10-30 Online:2021-01-28 Published:2021-01-25

摘要/Abstract

摘要： 提出了一种考虑永磁体不可逆退磁的磁齿轮复合电机(MGM)的设计方法。通过有限元方法分析了MGM永磁体的退磁情况,建立了MGM抗退磁能力的评估模型以及退磁率的计算方法,提出了一种综合考虑电机抗退磁能力、转矩密度、永磁体利用率的设计方法,制作了样机,转矩密度达到60.9N·m/L,永磁体利用率为50 N·m/kg,永磁体在2倍额定电流下不会发生不可逆退磁,可以保证MGM的可靠运行。

关键词: 退磁特性, 磁齿轮复合电机, 永磁体利用率, 转矩密度

Abstract: A design method of magnetically geared machine (MGM) was presented considering the irreversible demagnetization of the permanent magnet (PM).The demagnetization of the PMs of MGM was analyzed by the finite element method (FEM), and the evaluation model of the anti-demagnetization ability of the MGM and the calculation method of the demagnetization rate were established. A design method comprehensive considering the anti-demagnetization ability, torque density, and PM utilization of the machine was proposed. The prototype was made. The torque density reachesd 60.9 N·m/L, and the PM utilization rate was 50 N·m/kg. The PM could not be irreversibly demagnetized at twice the rated current. The reliable operation of MGM could be guaranteed

Key words: demagnetization characteristics, magnetically geared machine (MGM), permanent magnet utilization, torque density

中图分类号:

TM359.9

陈彬, 肖勇, 李权锋, 刘美扬. 考虑永磁体不可逆退磁的磁齿轮复合电机设计[J]. 微特电机, 2021, 49(1): 5-9.

CHEN Bin, XIAO Yong, LI Quan-feng, LIU Mei-yang. Design of Magnetically Geared Machine Considering the Irreversible Demagnetization of the Permanent Magnet[J]. Small & Special Electrical Machines, 2021, 49(1): 5-9.

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