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作者： Schmitz, Ulrich Haber, Robert Bars, Ruth Shell Deutschland Oil Rhineland Refinery Department for Technology and Services Ludwigshafener Strasse l D-50389 Wesseling Germany University of Applied Science Cologne Institute of Process Engineering and Plant Design Betzdorfer Str. 2 D-50679 Cologne Germany Budapest Univ. of Technology and Economics Dept. of Automation and Applied Informatics MTA-BME Control Research Group Goldmann Gy.ter 3 H-1111 Budapest Hungary

ISBN: (纸本)9783902661661

On-off control is still widely used in the industry, especially for discontinuous actuators, e.g. compressors, steam turbines or furnace burners. Exact set-point control is not possible by an on-off controller. Lower and upper limits are defined for the control signal which should not be violated. For this predictive gap control quadratic and horizon dependent cost functions are defined. Traditional numerical optimization fails with longer prediction horizons, but a genetic algorithm can be effectively applied even for long horizons.

关键词： Actuators

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Robust Proportional-Integral control of a Laboratory Model Using Programmable Logic controller SIMATIC S7-300

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IFAC Proceedings Volumes 2009年第6期42卷 36-41页

作者： Radek MatuŜu Katarína Vaneková Roman Prokop Monika BakoŜová Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Nad Stránemi 4511 76005 Zlín Czech Republic Tel: +420 576 033 015 fax: +420 576 035 279 Department of Information Engineering and Process Control Faculty of Chemical and Food Technology Slovak University of Technology in Bratislava Radlinského 9 81237 Bratislava Slovakia Tel: +421 259 325 364 fax: +421 252 496 469

The main aim of the contribution is to present a possible approach to design of simple Proportional-Integral (PI) robust controllers and subsequently to demonstrate their applicability during control of a laboratory model with uncertain parameters through the Programmable Logic controller (PLC) SIMATIC S7–300 by Siemens Company. The proposed and utilized synthesis consists of two steps – the former one is a determination of controller parameters area, which ensures the robustly stable control loop and which is based on the computing/plotting the stability boundary locus while the latter one lies in the final choice of the controller itself relying on algebraic techniques. The basic theoretical parts are followed by laboratory experiments in which the 3rd order nonlinear electronic model has been successfully controlled in various working points.

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Evolutionary optimization methods for predictive on-off control

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IFAC Proceedings Volumes 2009年第19期42卷 408-413页

作者： Ulrich Schmitz Robert Haber Ruth Bars Shell Deutschland Oil Rhineland Refinery Department for Technology and Services Ludwigshafener Strasse l D-50389 Wesseling Germany University of Applied Science Cologne Institute of Process Engineering and Plant Design Betzdorfer Str. 2 D-50679 Cologne Germany Budapest Univ. of Technology and Economics Dept. of Automation and Applied Informatics MTA-BME Control Research Group Goldmann Gy.ter 3 H-1111 Budapest Hungary

Abstract On-off control is still widely used in the industry, especially for discontinuous actuators, e.g. compressors, steam turbines or furnace burners. Exact set-point control is not possible by an on-off controller. Lower and upper limits are defined for the control signal which should not be violated. For this predictive gap control quadratic and horizon dependent cost functions are defined. Traditional numerical optimization fails with longer prediction horizons, but a genetic algorithm can be effectively applied even for long horizons.

关键词： predictive control on-off control discontinuous actuators genetic algorithms

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Adaptive LQ Approach Used in Conductivity control inside Continuous-Stirred Tank Reactor

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IFAC Proceedings Volumes 2008年第2期41卷 12929-12934页

作者： Jiri Vojtesek Petr Dostal Department of Process Control Faculty of Applied Informatics Tomas Bata University in Zlin Czech Republic (Tel: ***

This paper deals adaptive control of the real model represented by the Continuous-stirred tank reactor (CSTR). This type of reactor belongs to the class of systems with lumped-parameters. The chemical process inside the reactor is dilution of the salt with the clean water. The resulted mixture has specific conductivity, which is about to be controlled, depends on the content of the salt inside the reactant. Used adaptive approach is based on recursive identification of the system's parameters during the control. A polynomial approach used for the controller synthesis has satisfied control requirements and moreover, it could be used for systems with negative properties such as nonlinearity, non-minimum phase etc.

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Adaptive control of Three - Tank - System: Comparison of Two Methods

Adaptive Control of Three - Tank - System: Comparison of Two...

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2008 Mediterranean Conference on control Automation, vol.1

作者： Marek Kubalcik Vladimir Bobal Department of Process Control Faculty of Applied Informatics Tomas Bata University Zlin Zlin Czech Republic

This paper compares two different methods applied to adaptive control of a real multivariable laboratory system of three interconnected tanks. In first case, a controller based on polynomial methods was used. The second method is based on model predictive control (MPC) approach. Both methods are based on a same model of the controlled process. Both controllers were realized as self - tuning controllers with on - line recursive identification of an ARX model of the controlled process. Results of real-time experiments are also included and quality of control achieved by both methods is compared and discussed.

关键词： Multivariable control Self - tuning control Polynomial methods Pole assignment Predictive control

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Optimizing settling-time and overshoot of a controlled variable by a direct method

Optimizing settling-time and overshoot of a controlled varia...

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Mediterranean Conference on control and Automation (MED)

作者： Frantisek Gazdos Petr Dostal Radek Pelikan Department of Process Control Faculty of Applied Informatics Tomas Bata University Zlin Zlin Czech Republic

The paper presents a new approach to tuning a control loop. It uses a gradual iterative way to adapt settling- time and overshoot of a controlled variable. The algorithm exploits the virtual reference feedback tuning methodology - a direct method for controller design. Results are demonstrated using simulation experiments on a system from a test batch of models suitable for control purposes.

关键词： Automation Conferences

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Advanced process manipulation of magnesia sintering

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IFAC Proceedings Volumes 2008年第2期41卷 718-723页

作者： Imrich KOŠTIAL Ján SPIŠÁK Ján MIKULA Ján GLOČEK Pavol Nemčovský Ján TERPÁK Department of Applied Informatics and Process Control BERG Faculty Technical University of Košice B. Němcovej 3 042 00 Košice Slovak Republic

Manipulation process is connecting of our macroscopic world to the microscopic or nanoscopic one. Manipulation can occur in a variety of ways. Outside manipulation take control over the process by external forces. Inside process manipulation is becoming a part of the process. This process manipulation is called advanced process manipulation (APM). Possibility of process manipulation may substantially enhance the process effectiveness. In this paper methods of advanced process manipulation are presented. An incremental manipulation process will be defined as a sequence of basic operations. process manipulation generally requires custom-built system capable of performing of manipulation procedures. The progress in manipulation techniques can extend the application of the manipulated system. We have developed a simulation based system which was successfully implemented for designing of APM systems and control process in ways that are not conventionally possible. The developed system was applied on magnesia sintering process in shaft and rotary furnaces.

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Adaptive control of Three – Tank – System Using Polynomial Methods

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IFAC Proceedings Volumes 2008年第2期41卷 5762-5767页

作者： Marek Kubalcik Vladimir Bobal Department of Process Control Faculty of Applied Informatics Tomas Bata University in Zlin Nad Stranemi 4511 760 05 Zlín Czech Republic Tel.: +420 57 603 5198 Fax: +420 57 603 5279

Adaptive control of a three – tank - system laboratory model is presented. The objective laboratory model is a two input – two output (TITO) nonlinear system. It is based on experience with authentic industrial control applications. Two control algorithms utilizing polynomial theory and pole – placement were applied and compared. The first one is based on the traditional 1DOF (one – degree of freedom) configuration of the closed loop, the second one applies a decoupling method to suppress undesired cross – coupling. The algorithms implemented as self – tuning controllers are then used for control of the model. Results of real-time experiments are also included. Quality of control achieved by both methods is compared and discussed.

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Test case scenarios methodology 20

Test case scenarios methodology

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20th Bled eConference - eMergence: Merging and Emerging Technologies, processes, and Institutions

作者： Mojžišová, Andrea Department of Applied Informatics and Process Control Technical University of Košice Košice Slovakia

ISBN: (纸本)9789612322045

The Universal Business Language (UBL) is a new standard describing the content of XML documents. The purpose of UBL is to standardize common business documents. UBL define library of documents making up process "sourcing-topayment". In this article there are Test Case Scenarios created for the project ABILITIES (Application Bus for InteroperabiLITy In enlarged Europe SMEs, FP6/2004/IST/4).

关键词： XML

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Polynomial approach to control system design for a magnetic levitation system 9

Polynomial approach to control system design for a magnetic ...

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2007 9th European control Conference, ECC 2007

作者： Gazdos, Frantisek Dostal, Petr Pelikan, Radek Bobal, Vladimir Department of Process Control Faculty of Applied Informatics Tomas Bata University in Zlín Zlín760 05 Czech Republic

ISBN: (纸本)9783952417386

The contribution deals with the problem of designing a control system for a magnetic levitation apparatus. The proposed procedure uses a polynomial approach for control system design with control structure having two feedback controllers. In the paper, necessary conditions for control system stability, reference tracking and load disturbance attenuation are derived together with a methodology for optimal setting of the controllers' parameters. Although the system is unstable and nonlinear in nature, it is shown that it is not problematic to control it by means of linear controllers with parameters set in a robust way. © 2007 EUCA.

关键词： Robust control

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