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Title: Robust H∞ control of time-varying systems with stochastic non-linearities: the finite-horizon case
Authors: Ma, L
Wang, Z
Bo, Y
Guo, Z
Keywords: Stochastic systems;Non-linear systems;Time-varying systems;H∞ control;Robust control
Issue Date: 2010
Publisher: Sage Publications
Citation: Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 224(5): 575-585
Abstract: This paper is concerned with the robust H∞ control problem for the class of uncertain non-linear discrete time-varying stochastic systems with a covariance constraint. All the system parameters are time-varying and the uncertainties enter into the state matrix. The non-linearities under consideration are described by statistical means and they cover several classes of well-studied non-linearities. The purpose of the addressed problem is to design a dynamic output-feedback controller such that, the H∞ disturbance rejection attenuation level is achieved in the finite-horizon case while the state covariance is not more than an individual upper bound at each time point. An algorithm is developed to deal with the addressed problem by means of recursive linear matrix inequalities (RLMIs). It is shown that the robust H∞ control problem is solvable if the series of RLMIs is feasible. An illustrative simulation example is given to show the applicability and effectiveness of the proposed algorithm.
Description: The official published version can be obtained from the link below.
ISSN: 0959-6518
Appears in Collections:Computer Science
Dept of Computer Science Research Papers

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