摘要
针对开关磁阻电机固有的大转矩脉动问题,设计了非奇异快速终端滑模控制器与带有延时补偿的预测转矩控制器,提出一种基于滑模控制的开关磁阻电机预测转矩控制方法。引入非奇异快速终端滑模控制(NFTSMC)用于弥补预测转矩控制对内部参数与外界扰动敏感的缺点,可加快系统的响应速度,提高系统的动态性能。基于实际电机模型参数,设计了带有延时补偿的预测转矩控制器,使每相实际转矩能够准确跟踪根据转矩分配函数获得的每相转矩期望。通过MATLAB/Simulink仿真表明,该方法实现了对转速与转矩的联合控制,不仅能提高系统的稳定性和鲁棒性,而且能有效抑制开关磁阻电机的转矩脉动。
To solve the problem of large torque ripple inherent in switched reluctance motor(SRM),a non-singular fast terminal sliding mode controller and a predictive torque controller with delay compensation are designed,and a predictive torque control method based on sliding mode control is proposed.The nonsingular fast terminal sliding mode control is introduced to make up for the shortcomings of the predictive torque control,which is sensitive to internal parameters and external disturbances.It can speed up the response speed of the system and improve the dynamic performance of the system.Based on the actual motor model parameters,a predictive torque controller with delay compensation is designed,so that the actual torque of each phase can accurately track the desired torque of each phase obtained according to the torque sharing function.The MATLAB/Simulink simulation shows that the method realizes the joint control of speed and torque,which can not only improve the stability and robustness of the system,but also effectively suppress the torque ripple of the switched reluctance motor.
作者
严紫光
邵飞旋
Yan Ziguang;Shao Feixuan(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《农业装备与车辆工程》
2021年第9期74-79,共6页
Agricultural Equipment & Vehicle Engineering
关键词
开关磁阻电机
预测控制
延时补偿
滑模控制
switched reluctance motor
predictive control
delay compensation
sliding mode control
