基于占空比调制的永磁辅助同步磁阻电机模型预测转矩控制

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DOI：10.15938/j.emc.2025.05.013

中图分类号：TM351 文献标志码：A 文章编号：1007-449X（2025）05-0133-11

Model predictive torque control of permanent magnet assisted synchronous reluctance motor based on duty cycle modulation

XU Aide¹，HU Shimai¹，LIU Xin²，LI Xinyu² （1.Information Science and Technology Colege，Dalian Maritime University，Dalian ，China; 2.College of Marine Electrical Engineering，Dalian Maritime University，Dalian ，China）

Abstract：In view of the problem of large torque pulsation under traditional model predicted torque control，a model predicted torque control method based on duty cycle modulation was proposed. The torque hysteresis ring pre-screening method was used to reduce the number of seven basic voltage vector predictions in the traditional model predicted torque control to three，and feedback compensation was added to the torque and magnetic flux prediction links to further improve the accuracy of the prediction model. Based on the principle of no-difference beat，the optimal duty cycle corresponding to three different voltage vectors was calculated.The duty cycle calculation part was placed before the parallel evaluation function，and the duty cycle and the torque and magnetic flux prediction value after feedback were brought into the parallel evaluation function to select the optimal voltage vector and its corresponding duty cycle， and output the optimal expected voltage vector through duty cycle modulation. Simulation and experimental results show that the proposed model predictive torque control method based on duty cycle modulation can effectively suppress the torque pulsation of the motor and reduce the harmonic content of the stator current.

Keywords：permanent magnet assisted synchronous reluctance motor；model predictive torque control; duty cycle modulation； torque ripple; parallel evaluation function

0引言

永磁辅助同步磁阻电机（permanentmagnet as-sisted synchronous reluctance motor，PMA-SynRM）首次由意大利学者A.Vagati提出[1]。（剩余14504字）