Title :
On dynamic inversion with rate limitations
Author :
Biannic, Jean-Marc ; Burlion, Laurent ; Tarbouriech, S. ; Garcia, Gaetan
Author_Institution :
Dept. of Flight Dynamics, Control of ONERA, Toulouse, France
Abstract :
This paper investigates new ways of accounting for saturations in nonlinear dynamic inversion schemes. Because of its high practical interest, the particular case of rate limitations will receive a special attention here. The central contribution of the paper consists of showing how the nonlinear control problem can be rewritten in a standard form, strongly inspired by the robustness analysis framework. More precisely, standard dynamic-inversion-based controllers are viewed in this paper as particular solutions to a more general nonlinear compensation scheme. Various strategies are then proposed to solve the problem, among which multi-channel H∞ design approaches - for which new optimization tools were recently made available - will play a key role. In a second step, anti-windup optimization is also considered to further improve the control laws. The proposed methodology is illustrated by a realistic aircraft control design example.
Keywords :
H∞ control; compensation; control nonlinearities; control system synthesis; nonlinear control systems; nonlinear dynamical systems; robust control; aircraft control design; antiwindup optimization; dynamic-inversion-based controllers; multichannel H∞ design approach; nonlinear compensation scheme; nonlinear control problem; nonlinear dynamic inversion schemes; rate limitations; robustness analysis framework; Actuators; Equations; Mathematical model; Nonlinear dynamical systems; Optimization; Standards; Vectors; Anti-windup; Multi-objective H∞; Nonlinear dynamic inversion; Rate limiters; Saturations; control;
Conference_Titel :
American Control Conference (ACC), 2012
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4577-1095-7
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2012.6315117