Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Model-based predictive torque control of open-end winding IPMSMs driven by direct self-control

  • Hyung-Woo Lee (Department of Electrical and Computer Engineering, Ajou University) ;
  • Hyeon-Jun Park (Inverter Engineering Design Team, Hyundai Motor Company) ;
  • Kyo-Beum Lee (Department of Electrical and Computer Engineering, Ajou University)
  • Received : 2024.03.05
  • Accepted : 2024.07.21
  • Published : 2024.10.20
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Abstract

This paper proposes a method for the torque ripple reduction of an open-end winding interior permanent magnet synchronous motor (OEW-IPMSM) using direct self-control (DSC). The conventional DSC has been researched in high-power systems because of its advantages in terms of a low switching frequency and a fast response of torque. Nevertheless, high torque ripple is a disadvantage of the conventional DSC. This is because the trajectory of the stator flux is controlled in the shape of a hexagon for lower switching frequencies and by applying hysteresis torque control. In this paper, predictive torque control using a mathematical model of an OEW-IPMSM is presented to improve the quality of the torque control. In addition, the presented method addresses the trajectory control of the flux using the diverse voltage vectors of the dual inverter. The validity of the presented method is demonstrated by simulations and experimental results.

Keywords

Acknowledgement

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT), the Korea Institute of Energy Technology Evaluation and Planning (KETEP), and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. RS-2024-00333208, No. 20225500000110).

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