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Shape optimization-based design investigation of the switched reluctance motors regarding the target torque and current limitation

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Abstract

This study presents a shape optimization framework that can determine the optimal rotor and stator shapes of the switched reluctance motors (SRM). The goal of design optimization is to adjust a torque profile to the target torque under the current limitation. For this purpose, the spline-based pole-shape representation and stator-fitted coil representation are implemented to precisely represent the complicated geometry of the SRM. Through linking the electromagnetic field analysis module (ANSYS Maxwell) and the electric circuit analysis module (ANSYS Simplorer), the performance of the SRM is evaluated with consideration of a high nonlinearity due to the magnetic saturation. Then, the shape optimization is extensively performed to quantitatively investigate a relation between the optimal shapes and target performance (i.e., average torque, torque ripple, and current limitation in this study). These numerical results provide an informative design guideline for determining the optimal rotor and stator shapes of the SRM to achieve a high average torque and a low torque ripple under the given current limitation.

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Funding

This research was supported by a grant (20TLRP-C135446-04, Development of Hybrid Electric Vehicle Conversion Kit for Diesel Delivery Trucks and its Commercialization for Parcel Services) from Transportation and Logistics Research Program (TLRP) funded by Ministry of Land, Infrastructure, and Transport of Korean government.

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Authors and Affiliations

  1. The Cho Chun Shik Graduate School of Green Transportation, Korea Advanced Institute of Science and Technology, Daejeon, 34141, South Korea

    Changwoo Lee & In Gwun Jang

  2. Department of Mechanical Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea

    Jaewook Lee

Authors
  1. Changwoo Lee
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  2. Jaewook Lee
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  3. In Gwun Jang
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Correspondence to In Gwun Jang.

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The authors declare that they have no conflict of interest.

Replication of Results

All the presented results can be replicated, and all the necessary data sets and a flowchart for the problems are presented in the manuscript. The software used in this study is protected by Ministry of Land, Infrastructure and Transport of Korean government. Due to this confidential issue, we cannot share the software publicly.

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Responsible Editor: Ming Zhou

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Lee, C., Lee, J. & Jang, I.G. Shape optimization-based design investigation of the switched reluctance motors regarding the target torque and current limitation. Struct Multidisc Optim 64, 859–870 (2021). https://doi.org/10.1007/s00158-021-02897-0

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  • DOI: https://doi.org/10.1007/s00158-021-02897-0

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