基于观测器的永磁同步电机积分反推控制

doi:10.16182/j.issn1004731x.joss.201708015

摘要/Abstract

摘要： 针对永磁同步电机(PMSM)的速度跟踪控制问题,提出了一种基于观测器的反推控制器设计方法。为了重构电机转速及定子交轴电流,构造了永磁同步电机的全维Luenberger观测器;利用Lyapunov稳定性理论,获得了基于线性矩阵不等式(LMI)的观测器设计方法。通过设计包含重构变量的虚拟控制输入,加入转速跟踪误差积分环节,并运用反推控制策略来设计闭环系统控制器,实现电机转速输出对期望输出信号的高精度跟踪。通过Matlab数值仿真,验证了该方法的有效性。

关键词: 永磁同步电机, 无速度传感器, 观测器, 反推控制

Abstract: For the speed tracking control problem of Permanent Magnet Synchronous Motor (PMSM), an observer-based back-stepping speed tracking control method was presented. To reconstruct the motor speed and stator axis current, a full order Luenberger observer for PMSM was constructed. By using Lyapunov stability theory, the linear matrix inequality (LMI) based design method of observer was obtained. Through the design of the virtual control input that include the reconstruction variables, using back-stepping control strategy and integrating with tracking errors, the controller of the closed-loop system was proposed. The obtained controller can achieve high precision speed tracking. The validity of these methods were verified by a numerical example.

Key words: PMSM, speed sensorless, observer, backstepping control

中图分类号:

TP13

兰永红, 王亮亮, 陈才学. 基于观测器的永磁同步电机积分反推控制[J]. 系统仿真学报, 2017, 29(8): 1753-1761.

Lan Yonghong, Wang Liangliang, Chen Caixue. Observer-based Integral Backstepping Control for Permanent Magnet Synchronous Motor[J]. Journal of System Simulation, 2017, 29(8): 1753-1761.

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