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Optimal Design of Step-Sloping Notches for Cogging Torque Minimization of Single-Phase BLDC Motors

Author

Listed:
  • Yong-woon Park

    (Energy Innovative Industry R&D Department, Green Energy Institute, Mokpo 58656, Korea)

  • Jae-sub Ko

    (Smart Energy Institute, Sunchon National University, Suncheon 57922, Korea)

  • Dae-kyong Kim

    (Department of Electrical Engineering, Sunchon National University, Suncheon 57922, Korea)

Abstract

This paper presents a method for reducing the cogging torque for a sloping notch with two notches applied on the stator teeth. The accuracy of FEA was confirmed by a comparison with a previous model using an asymmetric notch for the experiment data and 3D FEA results, followed by a comparison of the cogging torque of a two notches model and a sloping notch model. The sloping notch model was modified to a step-sloping notch model in consideration of a potential manufacturing process. The optimal design for minimizing the cogging torque was developed considering the sloping degree, angle, position, and size of the notches. As the optimal design result, the cogging torque on the optimal model was reduced. Finally, the analysis and optimal design results were confirmed by FEA.

Suggested Citation

  • Yong-woon Park & Jae-sub Ko & Dae-kyong Kim, 2021. "Optimal Design of Step-Sloping Notches for Cogging Torque Minimization of Single-Phase BLDC Motors," Energies, MDPI, vol. 14(21), pages 1-15, November.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:21:p:7104-:d:669662
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    Cited by:

    1. Dileep Kumar & Surya Deo Choudhary & Md Tabrez & Afida Ayob & Molla Shahadat Hossain Lipu, 2022. "Model Antiseptic Control Scheme to Torque Ripple Mitigation for DC-DC Converter-Based BLDC Motor Drives," Energies, MDPI, vol. 15(21), pages 1-24, October.

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