电工技术学报  2022, Vol. 37 Issue (8): 1948-1958    DOI: 10.19595/j.cnki.1000-6753.tces.201313
电机及其系统 |
一种12/10极模块化定子混合励磁开关磁阻电机分析
丁文, 李可, 付海刚
西安交通大学电气工程学院 西安 710049
Analysis of A 12/10-Pole Modular-Stator Hybrid-Excited Switched Reluctance Machine
Ding Wen, Li Ke, Fu Haigang
School of Electrical Engineering Xi'an Jiaotong University Xi'an 710049 China
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摘要 为了提高传统开关磁阻电机(CSRM)的输出转矩、功率密度,降低电机的转矩脉动,该文提出一种新型的三相12/10极模块化定子混合励磁开关磁阻电机(MHSRM)。该电机定子由6个U型定子模块组成,每个U型定子块两极之间的槽口处嵌入永磁体,每个定子块构成独立的磁路,提高了电机的容错性,同时由于永磁体的加入,拥有更大输出转矩和功率密度。该文介绍MHSRM的拓扑结构、工作原理。为了验证该电机的良好性能,运用有限元方法对相同结构尺寸的MHSRM、CSRM和无永磁体的分块定子开关磁阻电机(SRM)的静态电磁场和电磁特性进行对比,并分析了永磁体对MHSRM电磁转矩的影响。最后,制作相同尺寸的MHSRM和CSRM样机各一台,对两种电机的静态电磁特性、稳态和动态性能进行实验测试,并与6/5极结构的MHSRM进行部分性能对比,实验结果验证了有限元计算分析的正确性,证明MHSRM具有相对更好的电磁性能。
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关键词 混合励磁开关磁阻电机模块化定子永磁体电磁特性    
Abstract:In order to improve the output torque and power density and decrease the torque ripple of conventional switched reluctance machines (CSRMs), a novel three-phase 12/10-pole modular hybrid-excited SRM (MHSRM) is proposed in this paper. The stator of the motor consists of six U-shaped stator modules, and a permanent magnet is embedded in the slot between two poles. Each stator module forms an independent magnetic circuit, which improves the fault tolerance of the motor. At the same time, due to the addition of permanent magnets, it has a larger output torque and power density. This paper introduces the machine topology, operating principle and mathematical model of MHSRM. In order to verify the good performance of the motor, two-dimensional finite element analysis (FEA) is used to analyze the static electromagnetic field and magnetic characteristics of a MHSRM, a CSRM and a non-permanent magnet segmented-stator SRM with the same size. The influence of permanent magnet on the electromagnetic torque of MHSRM is also analyzed. At last, one MHSRM and one CSRM prototypes of the same size are manufactured, and the static electromagnetic and dynamic performance of two motors are tested. The performance is also compared with the 6/5-pole MHSRM. The experimental results verify the correctness of FEA results, and prove that MHSRM has better electromagnetic performance.
Key wordsHybrid-excited switched reluctance machine    modular-stator    permanent magnets    magnetic characteristic   
收稿日期: 2020-09-29     
PACS: TM351  
基金资助:国家自然科学基金资助项目(51777161, 52077164)
通讯作者: 丁 文 男,1981年生,副教授,博士生导师,研究方向为电机系统及其控制、无线电能传输。E-mail: wending@xjtu.edu.cn   
作者简介: 李 可 男,1994年生,博士,讲师,研究方向为无线电能传输、电机系统控制。E-mail: like19@stu.xjtu.edu.cn
引用本文:   
丁文, 李可, 付海刚. 一种12/10极模块化定子混合励磁开关磁阻电机分析[J]. 电工技术学报, 2022, 37(8): 1948-1958. Ding Wen, Li Ke, Fu Haigang. Analysis of A 12/10-Pole Modular-Stator Hybrid-Excited Switched Reluctance Machine. Transactions of China Electrotechnical Society, 2022, 37(8): 1948-1958.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.201313          https://dgjsxb.ces-transaction.com/CN/Y2022/V37/I8/1948