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Author:

Ding, Wen (Ding, Wen.) | Li, Ke (Li, Ke.) | Fu, Haigang (Fu, Haigang.)

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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. © 2022, Electrical Technology Press Co. Ltd. All right reserved.

Keyword:

Electric motors Electromagnetic fields Fault tolerance Magnetic circuits Permanent magnets Stators Topology Torque

Author Community:

  • [ 1 ] [Ding, Wen]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 2 ] [Li, Ke]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China
  • [ 3 ] [Fu, Haigang]School of Electrical Engineering, Xi'an Jiaotong University, Xi'an; 710049, China

Reprint Author's Address:

  • W. Ding;;School of Electrical Engineering, Xi'an Jiaotong University, Xi'an, 710049, China;;email: wending@xjtu.edu.cn;;

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Source :

Transactions of China Electrotechnical Society

ISSN: 1000-6753

Year: 2022

Issue: 8

Volume: 37

Page: 1948-1958

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 8

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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