4.7 Article

A PMSM Control System for Electric Vehicle Using Improved Exponential Reaching Law and Proportional Resonance Theory

Journal

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume 72, Issue 7, Pages 8566-8578

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TVT.2023.3236628

Keywords

Electric vehicle; Permanent magnet machine; Dynamic performance; Proportional resonant

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This paper proposes an electric vehicle motor control strategy based on improved sliding mode and proportional resonance theory, which can improve the dynamic performance of the permanent magnet synchronous motor (PMSM) under the interference and parameter variations. The strategy effectively enhances the robustness and anti-interference performance of the PMSM system for electric vehicles (EVs).
Permanent magnet synchronous motor (PMSM) provides a very competitive technology for electric vehicle (EV) traction drive with its higher power density and higher efficiency. When the control system of PMSM for EV is affected by the change of motor parameters and the interference from the external environment, the motor system cannot provide high-quality dynamic performance in time. In the paper, an EV motor control strategy based on improved sliding mode and proportional resonance theory is proposed, in which a speed controller is designed based on the improved exponential reaching law. The improved exponential approximation law overcomes chattering in traditional sliding mode control without increasing parameters and improves the anti-interference performance of the EV. In addition, the improved proportional resonance method is used to design the current controller of the PMSM control system, and the combination of the two has been successfully applied to EV for the first time. Finally, the experiment and urban road condition test are carried out to verify. The results show that the proposed scheme can effectively improve the dynamic performance and robustness of the PMSM system for EVs.

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