Title :
Combined PLC/VSC for linear systems with input constraints
Author :
Jianbo, Hu ; Jian, Chu ; Hongye, Su
Author_Institution :
Inst. of Adv. Process Control, Zhejiang Univ., Hangzhou, China
Abstract :
We give a design method of a stabilizing control law for linear systems with input constraints, input additive uncertainties and disturbances, referred to as the combined PLC/VSC state feedback. It combines two useful design techniques, PLC (piecewise-linear LQ control) and the VSC (variable structure control) design techniques. It inherits the advantages of both design techniques, while avoiding their disadvantages. The stability of the closed-loop system is analyzed by using Lyapunov nested level sets and stability theory. The simulation results of a simple pendulum are presented to illustrate the developed control scheme and its performance
Keywords :
Lyapunov methods; closed loop systems; control system synthesis; linear quadratic control; linear systems; set theory; stability; state feedback; uncertain systems; variable structure systems; Lyapunov nested level sets; input additive uncertainties; input constraints; piecewise-linear LQ control; stabilizing control law; variable structure control; Control systems; Design methodology; Level set; Linear feedback control systems; Linear systems; Piecewise linear techniques; Programmable control; Stability analysis; State feedback; Uncertainty;
Conference_Titel :
Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on
Conference_Location :
Hefei
Print_ISBN :
0-7803-5995-X
DOI :
10.1109/WCICA.2000.862591
