Title :
Nonlinear structured H∞ controllers for parameter-dependent uncertain systems with application to aircraft landing
Author :
Lesprier, Jeremy ; Biannic, Jean-Marc ; Roos, Clement
Author_Institution :
Dept. of Flight Dynamics & Control, ONERA Toulouse, Toulouse, France
Abstract :
A new design methodology inspired by dynamic inversion techniques is proposed in this paper. It combines partially linearizing inner-loops with structured and robust outer-loops, which are designed by a non-smooth multi-model H∞ optimization approach. The proposed methodology also includes a robustness analysis scheme providing worst-case configurations, which are then used to enrich the bank of design models and thus iteratively improve the robustness properties of the designed outer-loops. Our approach is successfully tested on a realistic nonlinear aircraft control problem subject to large parametric variations and uncertainties.
Keywords :
H∞ control; H∞ optimisation; aircraft control; linearisation techniques; nonlinear control systems; robust control; uncertain systems; aircraft landing; dynamic inversion techniques; nonlinear structured H∞ controllers; nonsmooth multimodel H∞ optimization approach; parameter-dependent uncertain systems; partially linearizing inner-loops; realistic nonlinear aircraft control problem; robust outer-loops; robustness analysis scheme; robustness properties; worst-case configurations; Aerodynamics; Aerospace control; Aircraft; Atmospheric modeling; Optimization; Robustness; Uncertainty; Aerospace Application; Feedback Linearization; Multi-Model Synthesis; Nonlinear Robust Control; Robustness Analysis;
Conference_Titel :
Control Applications (CCA), 2014 IEEE Conference on
Conference_Location :
Juan Les Antibes
DOI :
10.1109/CCA.2014.6981384
