Output feedback predictive control for uncertain non-linear switched systems

被引:0
作者
Su, Baili [1 ]
Qi, Guoyuan [2 ,3 ]
van Wyk, Barend Jacobus [2 ,3 ]
机构
[1] Qufu Normal Univ, Sch Elect Informat & Automat, Jining 276826, Shandong, Peoples R China
[2] Tshwane Univ Technol, FSATIE, ZA-0001 Pretoria, South Africa
[3] Tshwane Univ Technol, Dept Elect Engn, ZA-0001 Pretoria, South Africa
关键词
switched system; Lyapunov function; state observer; control constraint; output feedback; model predictive control; MPC; stable region;
D O I
10.1504/IJMIC.2012.049686
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, a hybrid predictive controller is proposed for a class of uncertain non-linear switched system with input constraints and unavailable state measurements. The main idea is to design a bounded non-linear controller and a predictive controller for each subsystem using Lyapunov functions and state observers, also a suitable switched law to stabilise the closedloop subsystem, and to provide an explicitly characterised set of initial condition. For the whole switched system, based on the state estimates, a suitable switched law is designed to ensure the whole closed-loop's stability. The simulation results for a chemical process show the validity of the controller proposed in this paper.
引用
收藏
页码:195 / 205
页数:11
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