转子结构对异步起动铁氧体电机退磁影响研究

doi:1004-7018(2018)12-0012-04

微特电机 ›› 2018, Vol. 46 ›› Issue (12): 12-15.doi: 1004-7018(2018)12-0012-04

转子结构对异步起动铁氧体电机退磁影响研究

王晓光,胡雄,李新华

湖北工业大学,武汉 430068

收稿日期:2018-09-07 出版日期:2018-12-28 发布日期:2018-12-28
作者简介:王晓光(1984—),男,博士,副教授,研究方向为永磁电机驱动系统研究。
基金资助:
湖北省教育厅科学研究计划(Q20161403)

Research on Rotor Structure for Demagnetization of Line Start Ferrite Permanent Magnet Assisted Synchronous Reluctance Motor

WANG Xiao-guang, HU Xiong, LI Xin-hua

Hubei University of Technology,Wuhan 430068,China

Received:2018-09-07 Online:2018-12-28 Published:2018-12-28

摘要/Abstract

摘要：

异步起动铁氧体永磁辅助磁阻同步电动机在起动过程中定子电流大,铁氧体面临较大的退磁风险,严重影响了电机的正常运行。采用有限元瞬态场的分析方法分析了电枢磁场对永磁体退磁的影响,研究了不同导条及磁钢布置对电机不可逆退磁的作用规律。仿真结果显示,采用交轴转子导条及直轴永磁体的转子结构可大幅降低永磁体不可逆退磁风险;异步起动铁氧体电机和异步起动钕铁硼电机的对比分析表明,该电机结构具有较好的工程价值和应用前景。

关键词: 异步起动铁氧体永磁辅助式磁阻同步电机, 转子结构, 不可逆退磁, 瞬态场仿真

Abstract:

The stator current of line start ferrite permanent magnet assisted synchronous reluctance motor is large during starting process, and the ferrite faces a great risk of demagnetization, which seriously affects the normal operation of the motor. The effect of armature magnetic field on the permanent magnet demagnetization was analyzed by finite element transient field method. The irreversible demagnetization of the motor was studied by different arrangement of cage bars and magnets. The results show that the irreversible demagnetization risk of permanent magnet can be reduced significantly by the q-axis arrangement of the starting cage bars and the d-axis arrangement of the magnet.

Key words: line start ferrite permanent magnet assisted synchronous reluctance motor, rotor structure, irreversible demagnetization, transient field method

中图分类号:

TM351
TM464

王晓光, 胡雄, 李新华. 转子结构对异步起动铁氧体电机退磁影响研究[J]. 微特电机, 2018, 46(12): 12-15.

WANG Xiao-guang, HU Xiong, LI Xin-hua. Research on Rotor Structure for Demagnetization of Line Start Ferrite Permanent Magnet Assisted Synchronous Reluctance Motor[J]. Small & Special Electrical Machines, 2018, 46(12): 12-15.

参考文献

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转子结构对异步起动铁氧体电机退磁影响研究

Research on Rotor Structure for Demagnetization of Line Start Ferrite Permanent Magnet Assisted Synchronous Reluctance Motor

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