Title :
Robust gain scheduled control of a space launcher by introducing LQG/LTR ideas in the NCF robust stabilisation problem
Author :
Abbas-Turki, Mohamed ; Duc, Gilles ; Clement, Benoît ; Theodoulis, Spilios
Author_Institution :
Lab. SATIE, Cachan
Abstract :
A space launcher is a time-varying plant which is known to be hard to control, due to time and frequency-domain constraints and parameters uncertainties. In this paper, this problem is solved by interpolating LTI controllers designed for different instants of the flight. Such controllers are obtained by combining the NCF robust control problem with the LQG/LTR approach, the later being useful to design the compensators included in the first one.
Keywords :
aerospace control; compensation; control system synthesis; gain control; interpolation; invariance; linear quadratic control; robust control; time-varying systems; uncertain systems; NCF robust stabilisation problem; compensator design; frequency-domain constraints; linear quadratic regulator; linear time invariant controller design interpolation; loop transfer recovery; parameters uncertainties; robust gain scheduled control; space launcher; time-varying plant; Automatic control; Bandwidth; Design methodology; Hydrogen; Interpolation; Open loop systems; Robust control; Time factors; USA Councils; Uncertain systems;
Conference_Titel :
Decision and Control, 2007 46th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-1497-0
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2007.4434356
