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Torque production mechanism of switched reluctance machines with field modulation principle

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Abstract

This paper aims to investigate the torque production mechanism and its improvement design in switched reluctance machines (SRMs) based on field modulation principle. Firstly, the analytical expressions of the air-gap magnetic field are derived from the perspective of DC- and AC-components, respectively. Meanwhile, different slot/pole combinations and winding arrangements are considered. Secondly, the torque productions are analyzed and evaluated with emphasis on the interaction between the DC- and AC-components of air-gap fields. Thirdly, the 12-slot/8-pole and 12-slot/10-pole SRMs are established and studied by using the finite-element method. The effects of slot/pole combination and winding arrangement on the average torque production are clarified. Then, two new designs to improve the average torque are proposed. Finally, the prototype of the 12-slot/10-pole SRM is manufactured, and the experiments are carried out for validation.

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Authors and Affiliations

  1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, China

    YuHua Sun, WenXiang Zhao, JingHua Ji, ZhiJian Ling & YiFan Chen

  2. School of Industrial Engineering, University of Padova, Padova, 35131, Italy

    Nicola Bianchi

Authors
  1. YuHua Sun
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  2. WenXiang Zhao
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  3. JingHua Ji
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  4. ZhiJian Ling
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  5. YiFan Chen
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  6. Nicola Bianchi
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Corresponding author

Correspondence to WenXiang Zhao.

Additional information

This work was supported by the National Natural Science Foundation of China (Grant No. 52025073), and the Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX21_3358).

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Sun, Y., Zhao, W., Ji, J. et al. Torque production mechanism of switched reluctance machines with field modulation principle. Sci. China Technol. Sci. 66, 2743–2754 (2023). https://doi.org/10.1007/s11431-022-2246-7

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  • DOI: https://doi.org/10.1007/s11431-022-2246-7

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