某导弹电动舵机新型离散滑模控制技术研究  

Research on a New Discrete-time Sliding Mode Control Technology for a Missile Electromechanical Actuator

作　　者：彭书华[1] 李华德[2] 苏中[1] 李邓化[1] 

机构地区：[1]北京信息科技大学,北京100101 [2]北京科技大学,北京100083

出　　处：《中国机械工程》2009年第22期2668-2671,共4页China Mechanical Engineering

基　　金：北京市教委科技发展计划资助项目(KM200910772010);北京市属市管高校人才强教计划资助项目(PHR200907124)

摘　　要：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。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 mechod 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.

关 键 词：滑模控制 变结构控制 离散系统 趋近律 电动舵机 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TM31[自动化与计算机技术—控制科学与工程]