Brief paper: Networked-based robust H∞ control design using multiple levels of network traffic

Authors:
Sung Hyun Kim;PooGyeon Park
Affiliations:
Electrical and Computer Engineering Division, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Republic of Korea;Electrical and Computer Engineering Division, Pohang University of Science and Technology, Pohang, Kyungbuk, 790-784, Republic of Korea
Venue:
Automatica (Journal of IFAC)
Year:
2009

Citing 3
Cited 3

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Improved approach to robust H∞ stabilization of discrete-time T-S fuzzy systems with time-varying delays

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Modeling of random delays in networked control systems

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Abstract

This paper proposes a method of designing a network-traffic-dependent controller based on not only the deterministic information from the current timestamp but also the stochastic information from the finite sequence of the past timestamps. For its practical implementation, this paper introduces two algorithms: pattern generation (PG) algorithm and pattern identification (PI) algorithm. The PG algorithm classifies off-line the network traffic into some separate patterns using training sequences of timestamps, based on which a less conservative networked control system is designed. Also, the PI algorithm searches on-line for a pattern representing the recent network traffic, which is applied as a decision reference for operating the designed network-traffic-dependent controller.