某导弹电动舵机新型离散滑模控制技术研究

摘要

A discrete-time system control problem for a missile electromechanical actuator was presented and a new discrete reaching law sliding mode control method was proposed where the chattering problem of the method was researched and analyzed deeply. The design of a sliding mode variable controller based on the new discrete reaching law was given, and the stability of the system was proved theoretically. The control method used in electromechanical actuators control can decrease the chattering phenomenon produced in traditional discrete--time sliding mode control and improve control quality effectively. Simulation results demonstrate the effectiveness and the feasibility of the controller.%针对某导弹电动舵机的离散时间系统控制问题,提出了一种新的离散趋近律滑模变结构控制方法,深入研究分析了该方法的抖振问题,给出了基于该新型离散趋近律的滑模变结构控制器设计方法,从理论上证明了系统的稳定性.将该控制方法应用到某导弹电动舵机的计算机控制系统中,可大大降低传统离散趋近律滑模控制器的抖振,提高控制性能,仿真实验结果表明所设计的控制器是有效的.