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Eliminating the Effect of Common-Mode Voltage on an Open-End Winding PMSM Based on Model Predictive Torque Control

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  • Zhiming Lin
  • Bicheng Lei
  • Lingwei Wu
  • Pan Mei

Abstract

In the open-end winding permanent magnet synchronous motor (OEW-PMSM) with common DC link, the common-mode voltage (CMV) will cause leakage current and zero-sequence current, which will lead to the decrease in the system life and efficiency. To solve this problem, the loop characteristics of leakage current and zero-sequence current were analyzed, and the condition for eliminating the leakage current and the zero-sequence current was deduced. Then, the CMV of the voltage vectors for the OEW-PMSM system was calculated, and the appropriate voltage vectors satisfying the conditions were selected to form the control vector sets. Combined with the model predictive torque control (MPTC), a cost function without the weight factor was proposed. The voltage vector sets were predicted by the cost function. The optimal voltage vectors were selected to control the OEW-PMSM, which can eliminate the leakage current and the zero-sequence current caused by the CMV. The effectiveness of the proposed method was verified by the simulation results.

Suggested Citation

  • Zhiming Lin & Bicheng Lei & Lingwei Wu & Pan Mei, 2021. "Eliminating the Effect of Common-Mode Voltage on an Open-End Winding PMSM Based on Model Predictive Torque Control," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-11, June.
    • Handle: RePEc:hin:jnlmpe:5516290
    DOI: 10.1155/2021/5516290
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    Cited by:

    1. Marek Turzyński & Piotr Musznicki, 2021. "A Review of Reduction Methods of Impact of Common-Mode Voltage on Electric Drives," Energies, MDPI, vol. 14(13), pages 1-30, July.

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