Einladung zum Vortrag im Kolloquium Technische Kybernetik

Lp stability of networked control systems

Dr. Dragan Nesic
Department of Electrical and Electronic Engineering
The University of Melbourne

    Zeit: Dienstag · 20. 04. 2004 · 16:00 Uhr
    Ort: Raum V 9.31 · Pfaffenwaldring 9 · Campus Stuttgart-Vaihingen

Abstract

Results on input-output Lp stability of networked control systems (NCS) are presented for a large class of network scheduling protocols. It is shown that static protocols and a recently considered dynamical protocol called Try-Once-Discard (TOD) belong to this class. Our results provide a unifying framework for generating new scheduling protocols that preserve Lp stability properties of the system if a design parameter is chosen sufficiently small. The most general version of our results can be used to treat NCS with data packet dropouts. The model of NCS and, in particular, of the scheduling protocol that we use appears to be novel and we believe that it will be useful in further study of these systems. The proof technique we use is based on the small gain theorem and it lends itself to an easy interpretation. We prove that our results are guaranteed to be better than existing results in the literature and we illustrate this via an example of a batch reactor.

Biographical Information

Dr. Dragan Nesic is currently an Associate Professor and Reader in the Department of Electrical and Electronic Engineering at The University of Melbourne. He was awarded his Bachelor of Mechanical Engineering degree by The University of Belgrade, Yugoslavia in 1990 and his PhD from Systems Engineering, RSISE, Australian National University, Canberra in 1997. In the period of 1997-1999 Dr. Nesic held several postdoctoral positions in Australia, Belgium and USA. Since February 1999 he has been with The University of Melbourne. Dr. Nesic has been recently awarded a Humboldt Research Fellowship by the Alexander von Humboldt Foundation (Germany). Dr. Nesic is also a recepient of the Australian Professorial Fellowship (2004-2008) that will allow him to concentrate on his research for a period of five years. Dr. Nesic is a Senior Member of IEEE and IEAust . He is an Associate Editor for the journals IEEE Transactions on Automatic Control, Automatica and Systems and Control Letters and he served as a Member of International Program Committee for a range of conferences, including the American Control Conference; Conference on Decision and Control; Asian Control Conference; Information, Decision and Control; and NOLCOS.