基于电流观测器的PMSM反推终端滑模控制

doi:1004-7018-46-6-62-66

摘要/Abstract

摘要：

针对永磁同步电机单电流传感器控制系统,研究了基于电流观测器的PMSM反推终端滑模控制策略。在单相电流传感器的PMSM控制系统上,设计了自适应观测器实现对另两相电流和时变定子电阻的准确观测,提高了系统的可靠性。将反推控制与终端滑模控制进行结合,研究了一种基于终端滑模负载观测器的反推控制方法,有效地提高系统的收敛速度,增强系统的鲁棒性。利用李雅普诺夫理论证明了系统的稳定性。仿真及实验验证了系统具有良好动态性能。

关键词: 反推终端滑模控制, 永磁同步电机, 鲁棒性, 电流观测器

Abstract:

In order to solve the fault tolerance of the current sensor of permanent magnet synchronous motor control system, a backstepping terminal sliding mode control of PMSM based on current observer was studied. For the PMSM control system with only one phase current sensor, an adaptive observer was designed to realize the accurate estimation of the two phase current and the time varying stator resistance.Combining backstepping control with terminal sliding mode control, a backstepping control method based on terminal sliding mode load observer was studied, which can effectively improve the convergence speed and enhance the robustness of the system.The stability of the system was proved by Lyapunov theory. The simulation and experiment results show that the system has good dynamic performance.

Key words: backstepping terminal sliding mode control, permanent magnet synchronous motor(PMSM), robustness, current observer

中图分类号:

TM341
TM351

徐小明,赵清江. 基于电流观测器的PMSM反推终端滑模控制[J]. 微特电机, 2018, 46(6): 62-66.

Xiao-ming XU,Qing-jiang ZHAO. Backstepping Terminal Sliding Mode Control of Permanent Magnet Synchronous Motor Based on Current Observer[J]. Small & Special Electrical Machines, 2018, 46(6): 62-66.

参考文献

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