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永磁辅助同步磁阻电机改进型滑模观测器无位置传感器控制
引用本文:吴昌隆,储剑波.永磁辅助同步磁阻电机改进型滑模观测器无位置传感器控制[J].电机与控制应用,2021,48(7):26-33.
作者姓名:吴昌隆  储剑波
作者单位:南京航空航天大学 自动化学院,江苏 南京 211100;南京航空航天大学 自动化学院,江苏 南京 211101
摘    要:受磁路饱和与交叉耦合效应的影响,永磁辅助同步磁阻电机(PMASynRM)的dq轴电感具有不稳定性。为适应电感不稳定性并提高系统鲁棒性,采取一种基于扩展反电动势的改进型滑模观测器(SMO)无位置传感器控制算法,以估算电机的位置信息。使用超螺旋滑模观测器(ST-SMO)代替传统滑模观测器,使用Sigmoid函数代替传统sgn符号函数,提高滑模观测器系统的抗抖振能力。引入静止坐标系锁相环(PLL)提取转子位置信息。基于MATLAB/Simulink搭建改进型滑模观测器无位置传感器矢量控制模型,通过仿真验证了该算法可以快速准确地估计转子位置,具有较好的抗抖振性和动稳态性能。

关 键 词:永磁辅助同步磁阻电机  滑模观测器  扩展反电动势  超螺旋  锁相环  无位置传感器
收稿时间:2021/4/25 0:00:00
修稿时间:2021/5/27 0:00:00

Position Sensorless Control Using an Improved Sliding Mode Observer of PMASynRM
WU Changlong,CHU Jianbo.Position Sensorless Control Using an Improved Sliding Mode Observer of PMASynRM[J].Electric Machines & Control Application,2021,48(7):26-33.
Authors:WU Changlong  CHU Jianbo
Affiliation:College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China; College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211101, China
Abstract:For the magnetic saturation and cross coupling effect, the dq-axis inductance parameters of the permanent magnet assisted synchronous reluctance motor (PMASynRM) are unstable. In order to adapt the instability of the inductance and improve the robustness of the system, an improved algorithm of sliding mode observer (SMO) position sensorless control is proposed, which is based on the extended back electromotive force. The proposed control can estimate the position of the motor. To improve the chattering resistance ability of the system, the super twisting (ST) SMO is used to replace the conventional SMO, and the sigmoid function is used to replace the conventional sign function. The phase-locked loop (PLL) in rest frame is used to obtain the rotor position information. An improved SMO sensorless vector control simulation model is built in MATLAB/Simulink. The simulation analysis verifies that the improved algorithm can estimate the rotor position quickly and accurately, which has good chattering resistance and dynamic and static quality.
Keywords:permanent magnet assisted synchronous reluctance motor (PMASynRM)  sliding mode observer (SMO)  extended back electromotive force  super twisting  phase-locked loop (PLL)  position sensorless
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