Stabilization of Networked Control Systems with Variable Delays and Saturating Inputs

In this paper, improved conditions for the synthesis of static state-feedback controller are derived to stabilize networked control systems (NCSs) subject to actuator saturation. Both of the data packet latency and dropout which deteriorate the performance of the closed-loop system are considered in...

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Bibliographic Details
Published in:Iranian journal of electrical & electronic engineering 2014-06, Vol.10 (2), p.96-104
Main Authors: M. Mahmodi Kaleybar, R. Mahboobi Esfanjani
Format: Article
Language:English
Subjects:
Input Saturation
Linear Matrix Inequality (LMI)
Networked Control Systems
Variable Delay
Online Access:Get full text
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Summary:In this paper, improved conditions for the synthesis of static state-feedback controller are derived to stabilize networked control systems (NCSs) subject to actuator saturation. Both of the data packet latency and dropout which deteriorate the performance of the closed-loop system are considered in the NCS model via variable delays. Two different techniques are employed to incorporate actuator saturation in the system description. Utilizing Lyapunov-Krasovskii Theorem, delay-dependent conditions are obtained in terms of linear matrix inequalities (LMIs) to determine the static feedback gain. Moreover, an optimization problem is formulated in order to find the less conservative estimate for the region of attraction corresponding to different maximum allowable delays. Numerical examples are introduced to demonstrate the effectiveness and advantages of the proposed schemes.
ISSN:1735-2827
2383-3890