Delay-Dependent H Infinite Control of Linear Systems with Uncertain Input Delay Using State-Derivative Feedback
- Authors
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A. Shariati
Advanced Robotics and Automated Systems (ARAS), Faculty of Electrical and Computer Engineering K. N. Toosi University of Technology, Tehran, Iran
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H. D. Taghirad
Advanced Robotics and Automated Systems (ARAS), Faculty of Electrical and Computer Engineering K. N. Toosi University of Technology, Tehran, Iran
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B. Labibi
Faculty of Medicine, University of Toronto, Toronto, Canada
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- Abstract
- In some practical problems such as active vibration suppression systems, the state-derivative signals are easier to access than the state variables. This paper considers an H Infinite-based state-derivative feedback control problem for input-delayed systems. Applying this control law, the resulting closed-loop system turns into a specific time-delay system of neutral type. The significant specification of this neutral system is that its delayed term coefficients depend on the controller parameters. The time-delay is considered as uncertain time-invariant with a known constant bound. In this paper, the delay-dependent sufficient conditions for the existence of an H Infinite state-derivative feedback controller are derived in terms of matrix inequalities. The resulting H Infinite controller stabilizes the closed-loop neutral system and assures that the H Infinite-norm to be less than a prescribed level. An application example is presented to illustrate the effectiveness of the proposed method.
- References
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- Published
- 2012-03-29
- Issue
- Vol. 14 No. 1 (2012)
- Section
- Articles