Global practical stabilization of the double integrator system with an imperfect sensor and subject to a bounded disturbance  

作　　者：Zhiyuan Zhu Yuanlong Li Zongli Lin 

机构地区：[1]Department of Automation,Shanghai Jiao Tong University,and Key Laboratory of System Control and Information Processing of Ministry of Education,Shanghai 200240,China [2]Charles L.Brown Department of Electrical and Computer Engineering,University of Virginia,P.0.Box 400743,Charlottesville,VA 22904-4743,USA

出　　处：《Control Theory and Technology》2024年第3期468-478,共11页控制理论与技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62022055,62373249).

摘　　要：This paper is concerned with global practical stabilization of the double integrator system with an imperfect sensor and subject to an additive bounded output disturbance.The imperfect sensor nonlinearity possesses the nonlinear characteristics of saturation and dead zone.Because of the presence of output dead zone and the additive disturbance,the states cannot be expected to driven into an arbitrarily small neighborhood of the origin.To solve the global practical stabilization problem,we proposes a low gain-based linear dynamic output feedback law,under which the first state enters and remains in a bounded set whose size is depended on the bound of disturbance and the range of dead zone and the second state enters and remains in a pre-specified arbitrarily small set,both in finite time.Simulation results illustrate the effectiveness of our proposed control method.

关 键 词：Output saturation Disturbance rejection Output dead zone Low gain feedback-Linear output feedback Practical stabilization 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]