Title :
km-design with time domain constraints
Author :
Tchernychev, Andrei ; Sideris, Athanasios
Author_Institution :
Dept. of Mech. & Aerosp. Eng., California Univ., Irvine, CA, USA
Abstract :
Standard km-synthesis approach cannot handle specifications on the time response of the closed-loop system exactly. A new approach to design robust controllers for uncertain systems with time domain constraints using a multiplier technique is given. More specifically, it is required to find a controller such that a closed-loop system be stable in face of structural real/complex uncertainties, and the time responses {zi} to the given input signals {wi} belong to specified sets {Ωi}. Our algorithm is based on an iteration process involving a search for a suitable multiplier and solving a scaled constrained H∞ optimization problem. The computational efficiency of the algorithm is due to the usage of the discrete dynamic scalings obtained without bilinear transformation and curve fitting, and exact satisfaction of the time-domain constraints
Keywords :
H∞ control; closed loop systems; computational complexity; control system synthesis; iterative methods; robust control; search problems; time-domain synthesis; uncertain systems; closed-loop system; computational efficiency; discrete dynamic scalings; iteration process; km-design; robust controller design; scaled constrained H∞ optimization problem; standard km-synthesis approach; structural uncertainties; time domain constraints; time response; uncertain systems; Control systems; Electronic switching systems; Frequency domain analysis; Impulse testing; Radio access networks; Robust stability; Time domain analysis; Transfer functions; Uncertain systems; Uncertainty;
Conference_Titel :
American Control Conference, 1997. Proceedings of the 1997
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-3832-4
DOI :
10.1109/ACC.1997.609267
