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

Volume

4

fYear

2000

fDate

2000

Firstpage

2884

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on

Conference_Location

Hefei

Print_ISBN

0-7803-5995-X

Type

conf

DOI

10.1109/WCICA.2000.862591

Filename

862591