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A New Approach of Minimizing Commutation Torque Ripple for BLDCM

Author

Listed:
  • Bo Tan

    (Shaanxi Key Laboratory of Small & Special Electrical Machine and Drive Technology, Northwestern Polytechnical University, Xi’an 710072, China)

  • Zhiguang Hua

    (Shaanxi Key Laboratory of Small & Special Electrical Machine and Drive Technology, Northwestern Polytechnical University, Xi’an 710072, China)

  • Lu Zhang

    (Xi’an Flight Automatic Control Research Institute, Xi’an 710065, China)

  • Chun Fang

    (Shaanxi Key Laboratory of Small & Special Electrical Machine and Drive Technology, Northwestern Polytechnical University, Xi’an 710072, China)

Abstract

The properties of brushless DC motor (BLDCM) are similar to the fractional, slot-concentrated winding of permanent-magnet synchronous machines, and they fit well for electric vehicle application. However, BLDCM still suffers from the high commutation torque ripple in the case of the traditional square-wave current control (SWC) method, where the current vector rotates asynchronously with back-EMF. A current optimizing control (COC) method for BLDCM is proposed in the paper to minimize the commutation torque ripple. The trajectories of the three phase currents are planned by the given torque and the optimized result of the copper loss and motor torque equations. The properties of COC are analyzed and compared with that of SWC in the stationary reference frame. The results show that the way of making the current vector rotate synchronously with back-EMF (back-Electromotive Force) can minimize the modulus and velocity of the current vector in the commutation region, and reduce the torque ripple. Experimental tests obtained from an 82 W BLDCM are done to confirm the theoretical findings.

Suggested Citation

  • Bo Tan & Zhiguang Hua & Lu Zhang & Chun Fang, 2017. "A New Approach of Minimizing Commutation Torque Ripple for BLDCM," Energies, MDPI, vol. 10(11), pages 1-13, October.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:11:p:1735-:d:116933
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    Citations

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    Cited by:

    1. Xinmin Li & Guokai Jiang & Wei Chen & Tingna Shi & Guozheng Zhang & Qiang Geng, 2019. "Commutation Torque Ripple Suppression Strategy of Brushless DC Motor Considering Back Electromotive Force Variation," Energies, MDPI, vol. 12(10), pages 1-14, May.
    2. Roland Kasper & Dmytro Golovakha, 2020. "Combined Optimal Torque Feedforward and Modal Current Feedback Control for Low Inductance PM Motors," Energies, MDPI, vol. 13(23), pages 1-16, November.
    3. Mohamed Dahbi & Said Doubabi & Ahmed Rachid, 2018. "Current Spikes Minimization Method for Three-Phase Permanent Magnet Brushless DC Motor with Real-Time Implementation," Energies, MDPI, vol. 11(11), pages 1-14, November.
    4. Farya Golesorkhie & Fuwen Yang & Ljubo Vlacic & Geoff Tansley, 2020. "Field Oriented Control-Based Reduction of the Vibration and Power Consumption of a Blood Pump," Energies, MDPI, vol. 13(15), pages 1-18, July.

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