电工技术学报  2015, Vol. 30 Issue (12): 276-283    DOI:
电机与电器 |
转子磁分路混合励磁同步电机电枢反应磁场与电感特性研究
戴冀,张卓然,沐杨,刘业
江苏省南京航空航天大学新能源发电与电能变换重点实验室 南京 210016
Armature Reaction Field and Inductance Feature Analysis of a Hybrid Excitation Synchronous Machine With Magnetic Shunting Rotor
Dai Ji,Zhang Zhuoran,Mu Yang,Liu Ye
Jiangsu Provincial Key Laboratory of New Energy Generation and Power Conversion Nanjing University of Aeronautics and Astronautics Nanjing 210016 China
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摘要 提出转子磁分路混合励磁同步电机(HESM)的优化结构,探讨了磁场分布特性.通过与永磁同步电机(PMSM)的对比分析,研究了该电机的电枢反应磁场和电感特性.励磁绕组与磁分路结构的引入对该电机电枢反应磁场特性影响显著.电感特性由主磁路和磁分路的饱和程度共同决定,受到励磁电流和电枢电流的影响.在此基础上,分析了电感特性对其电动运行的影响,评估了永磁体的不可逆退磁风险.对比研究了一种新型HESM拓扑结构以研究结构变化对电感特性的影响.最后,研制了24kW转子磁分路HESM原理样机,三维有限元仿真与实验对比验证了其同步电感的变化规律.
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戴冀
张卓然
沐杨
刘业
关键词 电枢反应有限元分析混合励磁电感特性不可逆退磁转子磁分路    
Abstract:An optimized hybrid excitation synchronous machine(HESM) with magnetic shunting rotor and brushless field excitation is proposed and flux density distribution is discussed. Armature reaction field and inductance feature of the machine is investigated in comparison with that of permanent magnet synchronous machine(PMSM). It is shown that introduction of excitation winding and magnetic shunting structure has significant effect on armature reaction field of the machine. Inductance feature is determined by the saturation of both axial and radial flux path which vary with field current and armature current. And on this basis, influence of inductance feature on motoring operation is analyzed and the risk of irreversible demagnetization of the magnets is estimated. A novel topology is presented and compared to search the influence of structure variation on inductance feature of the HESM. A 24kW prototype is developed, and the 3D finite element analysis(FEA) results in accordance with measured results validate the inductance variation of the HESM.
Key wordsArmature reaction    finite element analysis    hybrid excitation    inductance feature    irreversible demagnetization    magnetic shunting rotor   
收稿日期: 2011-04-22      出版日期: 2015-09-14
PACS: TM315  
基金资助:国家自然科学基金项目(51277096),教育部“新世纪优秀人才支持计划资助”(NCET-13-0858)
作者简介: 戴 冀 男,1990年生,硕士研究生,研究方向为新型永磁电机及其混合励磁技术.张卓然 男,1978年生,教授,博士生导师,研究方向为航空电源,新能源发电与驱动系统,特种电机设计与控制技术.
引用本文:   
戴冀,张卓然,沐杨,刘业. 转子磁分路混合励磁同步电机电枢反应磁场与电感特性研究[J]. 电工技术学报, 2015, 30(12): 276-283. Dai Ji,Zhang Zhuoran,Mu Yang,Liu Ye. Armature Reaction Field and Inductance Feature Analysis of a Hybrid Excitation Synchronous Machine With Magnetic Shunting Rotor. Transactions of China Electrotechnical Society, 2015, 30(12): 276-283.
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