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Robust \(H_\infty\) control for switched systems with input delays: a sojourn-probability-dependent method. (English) Zbl 1355.93064

Summary: In this paper, a sojourn-probability-dependent method is proposed to investigate the robust \(H_\infty\) control for a class of switched systems with input delays. The considered system has the following characteristics: (1) it is a switched system consisting of a set of subsystems; (2) sojourn probabilities (i.e. the probability of switched systems staying in each subsystem) are assumed to be known (or partly known) a prior; and (3) there are input delays and parameter uncertainties in each subsystem. By using the sojourn probability information, a new type of switched system model is built. By using the Lyapunov functional method, the robust mean square stability criteria are obtained for switched systems under two conditions: (A) all sojourn probabilities of the subsystems are known; (B) only partly sojourn probabilities are known. Then the robust \(H_\infty\) controller feedback gains are derived by using the cone complement linearization method. An inverted pendulum system and a numerical example are given to demonstrate the effectiveness and applicability of the proposed method.

MSC:

93B36 \(H^\infty\)-control
Full Text: DOI

References:

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