控制理论与应用2009,Vol.26Issue(11):1225-1231,7.
有限时间死区修正迭代学习控制器的设计
Design of iterative learning controllers with finite-time dead-zone modification
摘要
Abstract
Iterative learning control with finite-time dead-zone modification is presented for a class of higher order nonlinear time-varying systems in the presence of initial condition errors. The Lyapunov-like approach is applied to design the iterative learning controller for dealing with parametric time-varying uncertainties, while a robust method is given to cope with norm-bounded uncertainties. With the introduction of finite-time dead-zone, the developed controllers ensure the specified error function to approach to zero over a pre-specified time-interval. A Gramian-based initial rectifying action is used to realize the complete tracking over another pre-specified time-interval. It is shown in the theoretical analysis and numerical simulation that the system states completely follow the desired trajectories after a pre-specified time, and the error function is always confined to stay within the region defined by the finite-time dead-zone. All the signals in the closed-loop system are proved to be bounded.关键词
迭代学习控制/初始修正吸引子/有限时间死区/格莱姆矩阵Key words
iterative learning control/ initial rectified attractors/ finite-time dead-zone/ Gramian分类
信息技术与安全科学引用本文复制引用
谢华英,孙明轩..有限时间死区修正迭代学习控制器的设计[J].控制理论与应用,2009,26(11):1225-1231,7.基金项目
国家自然科学基金资助项目(60474005,60774021,60874041) (60474005,60774021,60874041)
浙江省自然科学基金资助项目(Y107494). (Y107494)