Title :
A New Design Method for Linear Control Systems Possessing Integrity
Author :
Teng, Qingfang ; Fan, Duowang
Author_Institution :
Key Lab. of Opto-Electron. Technol. & Intelligent Control, Lanzhou Jiaotong Univ., Gansu
Abstract :
The paper is concerned with fault-tolerant control (FTC) problem of state feedback control system with parameter uncertainty. A new simple design method is given. By means of Lyapunov theorem, the paper derives three sufficient conditions for the controller to maintain closed-loop systems asymptotically stable against arbitrary sensor failures, actuator failures, both sensor and actuator failures, respectively. Be distinguished from other literatures´ method about FTC, the paper utilizes some concepts such as spectral radius and minimum eigenvalue of matrix to construct constrain inequalities in order to represent the sufficient conditions. Furthermore, controller design procedure is presented. A numerical example is provided to demonstrate the effectiveness and simplicity of the method proposed
Keywords :
Lyapunov methods; asymptotic stability; closed loop systems; control system synthesis; fault tolerance; linear systems; state feedback; uncertain systems; Lyapunov theorem; actuator failure; asymptotic stability; closed-loop systems; controller design; fault-tolerant control problem; linear control systems design; parameter uncertainty; sensor failure; state feedback control system; sufficient conditions; Actuators; Control systems; Design methodology; Eigenvalues and eigenfunctions; Fault tolerant systems; Linear matrix inequalities; Sensor systems; State feedback; Sufficient conditions; Uncertain systems; actuator failure; feedback control; integrity; parameter uncertainty; sensor failure;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1712696
