Title :
Mixed parametric/unstructured LFT modelling for robust controller design
Author :
Pfifer, H. ; Hecker, S.
Author_Institution :
Inst. of Robot. & Mechatron., German Aerosp. Center DLR, Wessling, Germany
fDate :
June 29 2011-July 1 2011
Abstract :
The paper presents a general procedure to approximate a parametric Linear Fractional Representation (LFR) with a reduced order LFR. The error resulting from a multidimensional model reduction step is covered by an unstructured uncertainty and the reduced order LFR is further optimized such that the norm of the required unstructured uncertainty is minimized. The effectiveness of the described method is shown on the example of a μ-synthesis controller for a parametric model of the longitudinal motion of a missile.
Keywords :
control system synthesis; reduced order systems; robust control; μ-synthesis controller; linear fractional representation; longitudinal motion; missile; mixed parametric/unstructured LFT modelling; multidimensional model reduction; reduced order LFR; robust controller design; unstructured uncertainty; Approximation methods; Computational modeling; Missiles; Numerical models; Optimization; Reduced order systems; Uncertainty;
Conference_Titel :
American Control Conference (ACC), 2011
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-4577-0080-4
DOI :
10.1109/ACC.2011.5991307
