摘要
为了提高永磁同步电机(PMSM)无位置传感器位置检测精度,提出了一种新型滑模观测器(SMO)的无位置传感器有限控制集模型预测控制(FCS-MPC)方法,用于表贴式PMSM驱动采用FCS-MPC策略解决传统矢量控制无法满足系统快速响应的问题,并能有效地避免比例积分(PI)控制器的整定困难。利用增强的正交锁相环(eQPLL)从SMO的估计反电动势获得PMSM的转子位置角和转速,并将估计出的转子位置角和转速反馈到模型预测控制(MPC)模块,实现无位置传感器控制,增强了控制器的鲁棒性实验结果表明所提控制方法在无位置传感器位置和转速检测精度的提高上是可行的。
In order to improve the position detection accuracy of permanent magnet synchronous motor(PMSM)without position sensor,a new finite control set model predictive control(FCS-MPC)method with a sliding mode observer(SMO)is proposed for surface-mounted PMSM drives.The FCS-MPC strategy is used to solve the problem that the traditional vector control cannot meet the system's fast responsiveness,and can successfully avoid the difficulty of proportional integral(PI)controller rectification.The estimated rotor position angle and rotational speed of the PMSM are calculated from the estimated counter-electromotive force of the SMO using the enhanced quadrature phase-locked loop(eQPLL),and they are fed back to the model predictive control(MPC)module to achieve position sensor-free control,increasing the controller's robustness.The experimental results show that the proposed control method for enhancing the precision of position and speed detection without position sensors is viable.
作者
周立
薛孟娅
尚治博
刘金澍
ZHOU Li;XUE Meng-ya;SHANG Zhi-bo;LIU Jin-shu(Liaoning Technical University,Huludao 125105,China)
出处
《电力电子技术》
北大核心
2023年第12期21-24,共4页
Power Electronics
基金
国家自然科学基金(51177067)。
关键词
永磁同步电机
模型预测控制
锁相环
滑模观测器
permanent magnet synchronous motor
model predictive control
phase-locked loop
sliding mode observer
