Frequency-Domain Robust Performance Condition for Controller Uncertainty in SISO LTI Systems: A Geometric Approach

Autor:	Vahid Raissi Dehkordi, Benoit Boulet
Jazyk:	angličtina
Rok vydání:	2009
Předmět:	Engineering (General). Civil engineering (General) TA1-2040 Electronic computers. Computer science QA75.5-76.95
Zdroj:	Journal of Control Science and Engineering, Vol 2009 (2009)
Druh dokumentu:	article
ISSN:	1687-5249 1687-5257
DOI:	10.1155/2009/746762
Popis:	This paper deals with the robust performance problem of a linear time-invariant control system in the presence of robust controller uncertainty. Assuming that plant uncertainty is modeled as an additive perturbation, a geometrical approach is followed in order to find a necessary and sufficient condition for robust performance in the form of a bound on the magnitude of controller uncertainty. This frequency domain bound is derived by converting the problem into an optimization problem, whose solution is shown to be more time-efficient than a conventional structured singular value calculation. The bound on controller uncertainty can be used in controller order reduction and implementation problems.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/50f4740fc2624bfdb0fc140b92cbfcf5 Zobrazit plný text záznamu Plný text View record in DOAJ