Title :
Online Switching Control Designs of LFT Systems
Author :
Dong, Ke ; Wu, Fen
Author_Institution :
Fac. of Mech. & Aerosp. Eng., North Carolina State Univ., Raleigh, NC
Abstract :
In this paper, we propose a switching control approach for linear fractional transformation (LFT) parameter dependent systems using multiple Lyapunov functions with online optimization techniques to improve performance and enhance control design flexibility. A gain-scheduled controller working for the next switching interval is designed at each switching time. A bumpless transfer compensator is also designed to minimize the jump of output caused by switching. The control synthesis conditions for both online switching controller and bumpless transfer compensator are formulated as linear matrix inequalities (LMI). Finally, the online switching control scheme is applied to an uninhabited combat aerospace vehicle (UCAV) problem
Keywords :
Lyapunov methods; compensation; control system synthesis; linear matrix inequalities; linear systems; time-varying systems; Lyapunov functions; bumpless transfer compensator; control synthesis; gain-scheduled controller; linear fractional transformation; linear matrix inequalities; online optimization; online switching control designs; uninhabited combat aerospace vehicle; Closed loop systems; Control design; Control system synthesis; Control systems; Design optimization; Logic; Lyapunov method; Stability; Switched systems; Switches;
Conference_Titel :
Decision and Control, 2006 45th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0171-2
DOI :
10.1109/CDC.2006.376986
