Title :
Reliable LQG control with sensor failures
Author :
Yang, G.H. ; Wang, J.L. ; Soh, Y.C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
fDate :
7/1/2000 12:00:00 AM
Abstract :
The paper deals with reliable LQG controller design for linear systems with sensor failures. A model of sensor failures more practical than outage is adopted. Two procedures of designing reliable LQG controllers are presented: stabilising solutions of three coupled Riccati equations; and solutions to one Riccati equation and two linear matrix inequalities. The resulting control systems are guaranteed to be robustly stable and with a known cost bound on the LQG cost against sensor failures. Algorithms are developed to obtain a solution and illustrated via numerical examples
Keywords :
Riccati equations; asymptotic stability; closed loop systems; linear quadratic Gaussian control; linear systems; matrix algebra; robust control; state feedback; LQG control; Riccati equations; asymptotic stability; closed loop systems; linear matrix inequality; linear systems; robust control; sensor failures; state feedback;
Journal_Title :
Control Theory and Applications, IEE Proceedings -
DOI :
10.1049/ip-cta:20000499
