输入受限线性系统鲁棒抗饱和控制  

Robust anti-windup control for linear systems with input constraints

作　　者：黄显林[1] 葛东明[1] 

机构地区：[1]哈尔滨工业大学控制理论与制导技术研究中心,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2010年第12期1613-1618,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金资助项目(60874084)

摘　　要：针对抗饱和控制的鲁棒性问题,将研究扩展到对输入饱和非线性、时变参数和动态不确定性具有结构摄动的鲁棒性框架内,给出了一种线性时不变系统鲁棒抗饱和控制算法.鉴于积分二次型约束具有刻画结构不确定性的能力,选择在积分二次型约束框架下解决问题.以定标的线性矩阵不等式形式给出了系统分析和控制综合条件.飞行控制仿真结果说明此算法不仅可以成功克服饱和非线性,且对时变参数和动态不确定性具有良好的鲁棒性.Concerning the robustness problem of anti-windup control,the following study was generalized into the robustness framework with structural perturbation of input saturation nonlinearities,time-varying parametric and dynamic uncertainties.A robust anti-windup algorithm was presented for linear time-invariant systems.Motivated by the capability of integral quadratic constraints in characterizing structural uncertainty,the concerned problem was addressed in the framework of integral quadratic constraints.The system analysis and control synthesis conditions were presented in the form of scaled linear matrix inequalities.The simulation results of a flight control problem demonstrated that the algorithm can not only overcome the saturation nonlinearities successfully,but also possess good robustness with respect to the time-varying parametric and dynamic uncertainties.

关 键 词：鲁棒性 抗饱和 饱和非线性 积分二次型约束 线性矩阵不等式 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]