电工技术学报  2020, Vol. 35 Issue (3): 481-493    DOI: 10.19595/j.cnki.1000-6753.tces.190113
双馈电机及驱动系统专题 |
绕线转子无刷双馈电机多谐波联合起动过程中磁动势及性能分析
阚超豪1, 鲍习昌1, 金科1, 李霄1, 王群京2
1. 合肥工业大学电气与自动化工程学院 合肥 230009;
2. 安徽大学教育部电能质量工程研究中心 合肥 230601
Analysis of Magnetomotive Force and Performance during Starting Process of Wound-Rotor Brushless Doubly-Fed Machine with Combined Multi-Harmonic Fields
Kan Chaohao1, Bao Xichang1, Jin Ke1, Li Xiao1, Wang Qunjing2
1. College of Electrical & Automatic Engineering Hefei University of Technology Hefei 230009 China;
2. Engineering Research Center for Power Quality of MOE Anhui University Hefei 230601 China
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摘要 多谐波联合起动绕线转子无刷双馈电机通过改变电机定子绕组联结方式,使得励磁电流在气隙中产生基波磁动势以及与基波同转向的不同极对数谐波磁动势。基波磁动势协同这些谐波磁动势与转子上复合线圈绕组相互作用来降低起动电流和增大起动转矩,进而改善电机的起动性能。该文通过详细的推导建立该电机的定子绕组磁动势数学模型,分析该电机在起动时磁动势谐波含量;分析转子绕组的磁场调制机理及工作特点,并对该电机在起动时的等效电路以及气隙磁通密度进行分析以研究其起动性能。仿真和试验结果表明,采用多谐波联合起动方式使电机的起动电流降低,起动转矩增大,并且使得电机具有良好的起动性能。
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阚超豪
鲍习昌
金科
李霄
王群京
关键词 多谐波联合起动无刷双馈电机复合线圈磁动势起动性能    
Abstract:Through changing the connection methods of the stator winding of wound-rotor brushless doubly-fed machine(BDFM) with multi-harmonic combined starting, the excitation current generates a fundamental wave magnetomotive force(MMF) and a different pole-pairs harmonic MMF in the same steering. The fundamental wave MMF cooperates with these harmonic MMF to interact with the composite coil windings on the rotor to reduce the starting current and increase the starting torque, thereby the starting performance of the BDFM is improved. In this paper, the mathematical model of MMF of the stator winding of the BDFM is established by detailed derivation; the MMF harmonic content of the BDFM at start-up is analyzed; the magnetic field modulation principles and characteristics of the rotor winding are analyzed. And the equivalent circuit and air gap magnetic density of the motor at start-up were analyzed in detail to research its starting performance. The simulation and experimental results show that the multi-harmonic combined starting method reduces the starting current of BDFM and increases the starting torque, so that the machine has excellent starting performance.
Key wordsMulti-harmonic combined starting    brushless doubly-fed machine (BDFM)    composite coil    magnetomotive force (MMF)    starting performance   
收稿日期: 2019-01-26      出版日期: 2020-02-12
PACS: TM32  
基金资助:国家自然科学基金(51377040)和安徽大学教育部电能质量工程研究中心开放课题基金(KFKT201609)资助
通讯作者: 鲍习昌 男,1993年生,硕士研究生,研究方向为新型电机与特种电机的设计和电磁计算。E-mail:baoxchang@163.com   
作者简介: 阚超豪 男,1974年生,博士,副教授,研究方向为新型特种电机设计、电磁计算。E-mail:kchthw@126.com
引用本文:   
阚超豪, 鲍习昌, 金科, 李霄, 王群京. 绕线转子无刷双馈电机多谐波联合起动过程中磁动势及性能分析[J]. 电工技术学报, 2020, 35(3): 481-493. Kan Chaohao, Bao Xichang, Jin Ke, Li Xiao, Wang Qunjing. Analysis of Magnetomotive Force and Performance during Starting Process of Wound-Rotor Brushless Doubly-Fed Machine with Combined Multi-Harmonic Fields. Transactions of China Electrotechnical Society, 2020, 35(3): 481-493.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.190113          https://dgjsxb.ces-transaction.com/CN/Y2020/V35/I3/481