Title :
Efficient convex design of robust feedforward controllers
Author :
Ferreres, Gilles ; Roos, Clément
Author_Institution :
System Control and Flight Dynamics Department, ONERA/DCSD, BP 4025, F-31055 Toulouse Cedex, France. ferreres@onera.fr
Abstract :
A practical method is proposed for the convex design of robust feedforward controllers, which ensure H∞/L2performance in the face of LTI and arbitrarily time-varying model uncertainties. A technique which computes the global minimum of this difficult infinite dimensional optimization problem is proposed, as well as a suboptimal but computationally less involving algorithm. A missile example illustrates the efficiency of the scheme: a robust feedforward controller is designed, either on the continuum of linearised time invariant models (corresponding to trim points), or on a quasi-LPV model representing the non-linear one.
Keywords :
Adaptive control; Constraint optimization; Filters; Frequency; Missiles; Open loop systems; Robust control; Shape control; Uncertainty; Upper bound;
Conference_Titel :
Decision and Control, 2005 and 2005 European Control Conference. CDC-ECC '05. 44th IEEE Conference on
Print_ISBN :
0-7803-9567-0
DOI :
10.1109/CDC.2005.1583198