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带磁障的分块转子磁通切换发电机电磁特性分析

严兵 史立伟 卞玉康 陶学恒 吕炳昌 丁富康

严兵, 史立伟, 卞玉康, 陶学恒, 吕炳昌, 丁富康. 带磁障的分块转子磁通切换发电机电磁特性分析[J]. 机械科学与技术, 2022, 41(8): 1240-1246. doi: 10.13433/j.cnki.1003-8728.20200451
引用本文: 严兵, 史立伟, 卞玉康, 陶学恒, 吕炳昌, 丁富康. 带磁障的分块转子磁通切换发电机电磁特性分析[J]. 机械科学与技术, 2022, 41(8): 1240-1246. doi: 10.13433/j.cnki.1003-8728.20200451
YAN Bing, SHI Liwei, BIAN Yukang, TAO Xueheng, LYU Bingchang, DING Fukang. Electromagnetic Characteristics of a Segmented Rotor Flux-switching Generator with Magnetic Barriers[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(8): 1240-1246. doi: 10.13433/j.cnki.1003-8728.20200451
Citation: YAN Bing, SHI Liwei, BIAN Yukang, TAO Xueheng, LYU Bingchang, DING Fukang. Electromagnetic Characteristics of a Segmented Rotor Flux-switching Generator with Magnetic Barriers[J]. Mechanical Science and Technology for Aerospace Engineering, 2022, 41(8): 1240-1246. doi: 10.13433/j.cnki.1003-8728.20200451

带磁障的分块转子磁通切换发电机电磁特性分析

doi: 10.13433/j.cnki.1003-8728.20200451
基金项目: 

国家自然科学基金项目 51975340

国家自然科学基金项目 51875327

详细信息
    作者简介:

    严兵(1997-), 硕士研究生, 研究方向为特种电机设计与控制, 17862512953@163.com

    通讯作者:

    史立伟, 教授, 硕士生导师, shiliwei@sdut.edu.cn

  • 中图分类号: TM315

Electromagnetic Characteristics of a Segmented Rotor Flux-switching Generator with Magnetic Barriers

  • 摘要: 针对传统分块转子磁通切换发电机在低励磁电流时,空载电动势过轴线对称且正负半周期幅值不相等的问题。提出了一种在定转子上增加气隙磁障的方法以削弱空载电动势中的谐波,改善电动势波形的方法,并且利用电机学公式从理论上分析了其谐波削弱的原理。通过有限元仿真软件对新型分块转子磁通切换发电机静态特性进行了分析,包括磁场分布、空载电动势、磁链等。仿真结果表明,优化后电机空载电动势的电压波形正弦性畸变率降低了83.1%。
  • 图  1  ESFSG工作原理

    图  2  传统ESFSG空载电磁特性

    图  3  励磁绕组产生的磁势图

    图  4  新型ESFSG拓扑

    图  5  磁力线分布图

    图  6  ESFSG气隙圆周磁密

    图  7  A相电枢定子极气隙磁密

    图  8  新型与传统ESFSG电动势仿真图

    图  9  新型与传统ESFSG静态特性对比图

    图  10  电机接3Ω负载电动势

    图  11  ESFSG外特性

    表  1  三相ESFSG主要参数

    参数 数值 参数 数值
    定子外径/mm 136 电枢绕组匝数 20
    定子内径/mm 82.7 励磁绕组匝数 80
    转子外径/mm 82.1 转子极深/mm 12.1
    定子轭高/mm 10 电机转速/(r·min-1) 3 000
    定子极跨度/(°) 25 定转子铁心材料 DW360-50
    转子极跨度/(°) 41 不导磁转子材料 铸铝
    下载: 导出CSV

    表  2  ESFSG的谐波特性

    电机 基波幅值/V THD UTHDOOD UTHDEVEN
    传统ESFSG 31.6 15.55% 9.23% 12.5%
    新型ESFSG 30.6 7.09% 1.52% 2.11%
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-10-30
  • 刊出日期:  2022-08-25

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