信息与控制2013，Vol.42Issue(4)：449-456,8.DOI:10.3724/SP.J.1219.2013.00449
导弹电动舵机系统离散自适应全程滑模控制
Discrete Adaptive Global Sliding Mode Control for Missile Electromechanical Actuator System
摘要
Abstract
For the influence of the uncertainties on the performance including parameters variations and external disturbances in the missile electromechanical actuator system,a discrete adaptive global sliding mode controller (AGSMC) is proposed.By the design of nonlinear switching function,the initial state of system is set on the switching surface,which shortens the initial reaching time greatly.The AGSMC is designed based on a discrete adaptive reaching law,and a linear extrapolation method is used to estimate the uncertainties,which can guarantee the global robustness in the premise of system stability.With the computer simulations on an experiment plant of electromechanical actuator,it is shown that the proposed scheme not only ensures strong robustness against uncertainties and good tracking precision,but also suppresses the high-frequency chattering at control input effectively,compared with the conventional reaching law approach.In addition,it is dispensable to satisfy the matching condition,so the proposed control method possesses stronger generality.关键词
电动舵机/离散系统/自适应控制/滑模控制/鲁棒性Key words
electromechanical actuator/ discrete system/ adaptive control/ sliding mode control/ robustness分类
信息技术与安全科学引用本文复制引用
刘晓东,吴云洁,张武龙,王建敏..导弹电动舵机系统离散自适应全程滑模控制[J].信息与控制,2013,42(4):449-456,8.基金项目
国防科技重点实验室基金资助项目(9140C60O2O21OHT08) （9140C60O2O21OHT08）
国家自然科学基金资助项目(91216304). （91216304）
