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Functional State Space Approach in Control System Design

Due to widely applied programmable controllers and inexpensive digital control technology it has become feasible to implement more general schemes in process control. The presented extension of conventional approach is based on functional generalization of standard state space theory. Being based on functional model of the plant this approach results in control means using time delay components in controller structure. The benefit of this kind of control system concept consists in working with models of very low order and operating on state variables prevailingly identical with available plant outputs. On this principle several functional (called anisochronic) modifications of conventional control design methods have been developed and applied, namely · functional (anisochronic) state feedback control, · functional extension of Ackermann formula, · anisochronic state observers and their application in both control and fault detection, · functional extension of internal model control scheme. Despite their simplicity the anisochronic models belong to the class of infinite dimensional systems. This fact has brought a necessity to develop specific tools to design their properties primarily based on s-plane application. Zítek P.: Frequency Domain Synthesis of Hereditary Control Systems via Anisochronic State Space. Int. J. Control, 1997, Vol. 66, No. 4, 539-556 Zítek P.: Anisochronic State Observers for Hereditary Systems. Int. J. Control, 1998, Vol. 71, No. 4, 581-599

Type of Seminar:
Public Seminar
Prof. Pavel Zítek
Czech Technical University in Prague, Institute of Instrumentation and Control Eng. Technicka 4, 166 07 Praha 6 Czech Republic
May 17, 2000   17:15

ETH-Zentrum, ETZ E6, Gloriastrasse 35, 8006 Zurich
Contact Person:

Dr. F. Kraus
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Biographical Sketch:
Born 1939, MSc. degree in Mechanical Eng. from Czech Tech. University Prague (CTU) 1961, CSc (PhD) in Tech. Cybernetics in 1968 at CTU. Since 1977 (habil) Ass. Prof. at Dept. of Automatic Control, CTU. During the 70s and 80s responsible for 9 contract projects of industrial control systems (FLOAT glass production, mining technology, power plant control, aircraft control, high performance compressor units, fiber glass production control etc.) DrSc. degree (second doctorate) in Tech. Cybernetics in 1987 at CTU. Professor in Tech. Cyber. since 1989. Specialized in Computer Modelling and Control System Theory, particularly Time Delay Systems, Fault Detection. Head of the Institute of Instrumentation and Control Engineering, Chairman of the Editorial Board of the journal Automation (Czech), Member of Czech Engineering Academy, Chairman of Doctoral Study Board (Tech. Cyber.) Member of 5 Scientific Boards at Czech Universities.