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DESIGN OF ROBUST OUTPUT AFFINE QUADRATIC controlLER

IFAC Proceedings Volumes 2002年第1期35卷 265-270页

作者： Vojtech Veselý Dept. of Automatic Control Systems Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava Slovak Republic

The paper addresses the problem robust output feedback controller design with guaranteed cost and affine quadratic stability for linear continuous time affine systems. The proposed design method leads to a non-iterati... 详细信息

关键词： Affine Linear Systems Affine Quadratic Stability Robust controller Output Feedback

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Frequency conversion control for electric bicycle based on siemens C164CI microcontroller

Frequency conversion control for electric bicycle based on s...

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Proceedings of the second International Symposium on Instrumentation Science and Technology

作者： Liang, Zhengfeng Wang, Lei Dong, Yanjun Meyer, P.G. Dept. of Info. and Ctrl. Engineering Siemens-Inst. for Automation Tech. Tongji Univ. Shanghai 200092 China Dept. of Automatic Control Northwestern Polytechnical Univ. Xi'an 710072 China Infeon Technologies AG München 800949 Germany

ISBN: (纸本)7560317685

In order to show the handling ability of 16-bit microcontrollers of the Siemens C166-family. The controller for electric bicycle of Rare Earth Permanent Magnet Brushless DC Motor (BLDCM) based on Siemens C164-class is developed. The control method used in the speed adjustment of DC Motor is the armature voltage control law that changes armature terminal voltage. This system is implemented with pulse wide modulation (PWM) and the principle of microcontroller control. The microcontroller C164CI is used to control the system. The reliability of the system is enhanced by using the microcontroller, and high efficiency and energy saving are achieved.

关键词： Microcontrollers

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HIERARCHICAL CLUSTERING FOR FUZZY MODELING OF MATERIALS PROPERTY PREDICTION

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IFAC Proceedings Volumes 2002年第1期35卷 193-198页

作者： Min-You Chen D.A. Linkens Dept. of Automatic Control and Systems Engineering University of Sheffield Mappin Street Sheffield S1 3JD UK

A simple and effective fuzzy clustering approach is presented for fuzzy modeling from industrial data. In this approach, fuzzy clustering is implemented in two phases: data compression by a self-organizing network, and fuzzy partitioning via fuzzy c-means clustering associated with a proposed cluster validity measure. The approach is used to extract fuzzy models from data and find out the optimal number of fuzzy rules. The simulation results show that the proposed approach has good clustering performance with noise-contaminated data and high-dimensional industrial data.

关键词： Fuzzy clustering Partition validity Fuzzy modeling Property prediction

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Prediction in iterative learning control schemes versus learning along the trials 15th

Prediction in iterative learning control schemes versus lear...

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15th World Congress of the International Federation of automatic control, 2002

作者： Rzewuski, M. Rogers, E. Owens, D.H. Dept. of Electronics and Computer Science University of Southampton SouthamptonSO17 1BJ United Kingdom Department of Automatic Control and Systems Engineering University of Sheffield SheffieldS1 3JD United Kingdom

ISBN: (纸本)9783902661746

Recent years has seen much progress in the theory and application of iterative learning control schemes for both linear and (classes of) nonlinear dynamics. In the case of the former, many algorithms based on minimizing a suitable cost function have been reported. Here the interest is in the so-called norm optimal approach where the basic philosophy is to compute the control input on the current trial such that the tracking error is reduced in an optimal way without too much deviation from the control input used on the previous trial. This paper compares the performance of a range of controllers arising from use of the norm optimal approach - both stand alone and against alternatives. Copyright © 2002 IFAC.

关键词： Iterative methods

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The Gröbner basis method in control design: An overview 15th

The Gröbner basis method in control design: An overview

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15th World Congress of the International Federation of automatic control, 2002

作者： Nešić, D. Mareels, I.M.Y. Glad, T. Jirstrand, M. Dept. Electrical and Electronic Engineering University of Melbourne ParkvilleVIC3010 Australia Division of Automatic Control Link oping University LinköpingS-581-83 Sweden MathCore AB Wallenbergs Gata LinköpingS-583-35 Sweden

ISBN: (纸本)9783902661746

The paper discusses the usefulness of Gröbner bases methods in a variety of control problems for a class of polynomial systems. Polynomial systems are described by difference or differential equations in which the transition map or vectorfield are polynomials. Gröbner bases methods are useful in both the analysis and the design of polynomial control systems. Copyright © 2002 IFAC.

关键词： Polynomials

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AN EXTENDED ROBUST H ∞ FILTER DESIGN FOR SDINS IN-FLIGHT ALIGNMENT

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IFAC Proceedings Volumes 2002年第1期35卷 55-60页

作者： Myeong-Jong Yu Jang Gyu Lee Chan Gook Park Kyu Cheol Park Agency for Defense Development Korea Automatic Control Research Center School of Electrical Engineering Seoul National University Korea Dept. of Information & Control Engineering Kwangwoon University Korea MicroInfinity Co. Ltd. Korea

In this paper, a robust filter for an in-flight alignment (IFA) is presented to effectively eliminate system errors in the case where a strapdown inertial navigation system (SDINS) has large initial attitude errors. First, an extended robust H ∞ filter is proposed for a general nonlinear uncertain system. We also analyze the characteristics of the proposed filter, such as an H ∞ performance criterion, using the Lyapunov function method. Analysis results show that the proposed filter has robustness against disturbances, such as process and measurement noises, and against parameter uncertainties. Then the IFA for the SDINS is designed using the presented filter. Simulation results demonstrate that the proposed filter effectively improve the performance.

关键词： strapdown inertial navigation system in-flight alignment extended robust H ∞ filter nonlinear uncertain system H ∞ performance robustness

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Implementation of constrained predictive outer-loop controllers: Application to a boiler control system 15th

Implementation of constrained predictive outer-loop controll...

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15th World Congress of the International Federation of automatic control, 2002

作者： Tadeo, Fernando Alvarez, Teresa Grimble, Mike Vilanova, Ramon Departamento de Ingenieria de Sistemas y Automática Facultad de Ciencias Universidad de Valladolid Valladolid47011 Spain Industrial Control Centre Strathclyde University United Kingdom Automatic Control and Systems Engineering Group Dept. of Computer Science Universitat Autonoma de Barcelona Bellaterra Barcelona08193 Spain

ISBN: (纸本)9783902661746

This paper addresses the problem of implementing predictive controllers for supervisory level control systems. In this configuration the manipulated variables calculated by the Predictive controller are used as command signals for the Distributed control Systems, which provide references to the operator-tuned local PID controllers that act on the physical system. This structure introduces the problem of loosing of performance if the inner-loop controllers are re-tuned. The paper discusses the solution to this problem based on the use of a two-degrees-of-freedom structure in the inner loop, that separates open and closed-loop properties. Both design guidelines and robustness issues are discussed. Copyright © 2002 IFAC.

关键词： controllers

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PREDICTIVE FUNCTIONAL control: MORE THAN ONE WAY TO PRESTABILISE

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IFAC Proceedings Volumes 2002年第1期35卷 289-294页

作者： J.A. Rossiter Dept. of Automatic Control & Systems Engineering University of Sheffield Mappin Street Sheffield S1 3JD Tel. 44 114 2225685

It is possible to prestabilise the predictions used within Predictive Functional control in order to increase the likelihood of a stabilising control design. However, the minimal order approach to prestabilisation is not always a good basis for control design. This weakness is investigated and some non-minimal forms of prestabilisation are developed which are a much better basis for control.

关键词： Predictive functional control stability prestabilisation performance

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40th EASD Annual Meeting of the European Association for the Study of Diabetes : Munich, Germany, 5-9 September 2004

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Diabetologia 2004年第SUPPL 1期47卷 A1-A464页

作者： Veitenhansl, M. Stegner, K. Hierl, F.-X. Dieterle, C. Feldmeier, H. Gutt, B. Landgraf, R. Garrow, A. P. Vileikyte, L. Findlow, A. Waterman, C. Boulton, A. J. M. Shankhdhar, K. Shankhdhar, L. Shankhdhar, U. Petrova, N. L. Foster, A. V. M. Edmonds, M. E. Ferraresi, R. Caravaggi, C. De Giglio, R. Cavaiani, P. Pogliaghi, I. Sommariva, E. Katz, I. A. Harlan, A. Miranda-Palma, B. Prieto-Sanchez, L. Armstrong, D. G. Bowker, J. H. Mizel, M. S. Cernea, S. Wohlgelernter, J. Kidron, M. Modi, P. Raz, I. Arbit, E. Nosek, L. Kapitza, C. Beckett, P. Gelfand, R. Goldberg, M. Heise, T. Testa, M. A. Turner, R. R. Hayes, J. F. Scranton, R. E. Simonson, D. C. Yang, Y.-W. Hsu, Y.-J. Naujok, O. Francini, F. Jörns, A. Tiedge, M. Lenzen, S. Abdel-Wahab, Y. H. A. Marenah, L. Orr, D. F. Shaw, C. Flatt, P. R. Chokkalingam, K. Mansell, P. I. Clausen, P. Ekbom, P. Damm, P. Feldt-Rasmussen, U. Nielsen, B. Mathiesen, E. R. Feldt-Rasmussen, B. Dewan, S. Da Silva, N. Ternan, P. Mc Leong, K. S. Wilding, J. P. H. Asatiani, N. Kurashvili, R. Dundua, M. Shelestova, E. Pagava, K. Ramazashvili, M. Hod, M. Smirnov, S. Petersen, J. L. A. Justesen, T. I. Ringholm Nielsen, L. Müller, C. Højlund, K. Wensaas, A. Kase, E. T. Aas, V. Rustan, A. C. Thoresen, G. H. Levin, K. Beck-Nielsen, H. Gaster, M. Im, S.-S. Kang, S.-Y. Kim, S.-Y. Ahn, Y.-H. Lihn, A. S. Schmoll, D. Werner, T. Kienitz, A. Meyer, M. Barthel, A. Ailett, F. Sutherland, C. Walther, R. Grempler, R. Sasson, S. Reich, R. Tenenbaum, T. Alpert, E. Anfossi, G. Russo, I. Traversa, M. Massucco, P. Mattiello, L. Doronzo, G. Trovati, M. Lally, S. Tan, C. Y. Owens, D. Tomkin, G. H. Porchay, I. Péan, F. Bellili, N. Betoulle, D. Balkau, B. Tichet, J. Marre, M. Fumeron, F. Chatellier, G. Alhenc-Gelas, F. Nichols, G. A. Brown, J. B. Hayes, R. P. Bowman, L. Drexel, H. Saely, C. H. Marte, T. Benzer, W. Langer, P. Hoefle, G. Moll, W. Aczel, S. Karagiannis, E. Lübben, G. Urquhart, R. Edwards, G. Bruce, S. Howlett, H. S. C. Cugnardey, N. Turner, K. C. Park, J.-S. Fiedorek, F. T. Avogaro, A. Gallo, A. Pinton, P. Riz Innenstadt Klinikum der Universität München München Germany Diabetes Center Medizinische Klinik München Germany Medicine The University of Manchester Manchester UK Medicine University of Manchester Manchester UK Podiatry The University of Salford Manchester UK Department of Medicine/Division of Endocrinology Diabetes and Metabolism University of Miami Miami USA Department of Medicine Manchester Royal Infirmary Manchester UK Podiatry L.K.Diabetes Centre Lucknow India Diabetology L.K.Diabetes Centre Lucknow India Medical Nutrition L.K.Diabetes Centre Lucknow India Diabetic Foot Clinic King’s College Hospital London UK Haemodinamic Department - Cardiovascular Division Magenta Hospital Milan Italy Center for the Study and Treatment of Diabetic Foot Pathology Abbiategrasso Hospital Milan Italy Center for the Study and Treatment of Diabetic Foot Pathology Abbiategrasso Hospital Abbiategrasso Italy Department of Orthopedics University of Miami Miami USA Department of Surgery Southern Arizona Veterans Affairs Medical Center Tucson USA Surgery Southern Arizona VA Medical Center Tucson USA Podiatric Medicine and Surgery Rosalind Franklin University School of Medicine and Science North Chicago USA Diabetes Department Center of Diabetes Nutrition and Metabolic Disorders Clug-Napoca Romania Diabetes Unit Hadassah University Hospital Jerusalem Israel Diabetes Unit Hadassah Hebrew University Hospital Jerusalem Israel Research Department Generex Biotechnology Corporation Toronto Canada Hadassah Hebrew University Hospital Jerusalem Israel Medical Research Emisphere Technologies Inc. New York USA Profil Institut fuer Stoffwechselforschung GmbH Neuss Germany Profil Institute for Metabolic Research Neuss Germany Management Profil Inst. für Stoffwechselforschung Düsseldorf Germany Institute for Metabolic Research Profil Neuss Germany Biostatistics Harvard School of Public Health Boston USA Clinical Research Phase V Technologies Wellesley Hills US

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APPLICATION OF ROBUST OBSERVER-BASED FDI SYSTEMS TO FAULT TOLERANT control

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IFAC Proceedings Volumes 2002年第1期35卷 455-460页

作者： P. Zhang S.X. Ding G.Z. Wang T. Jeinsch D.H. Zhou Dept. of Automation Tsinghua Univ. 100084 Beijing P.R.China Inst. of Automatic Control and Complex Systems Univ. of Duisburg Germany Dept. of Electrical Engineering. Univ. of Applied Sciences Lausitz Germany

In this paper, an active fault tolerant control (FTC) strategy is presented for linear dynamic systems. The robust observer-based fault detection and isolation (FDI) systems are applied to guide the reconfiguration of controller parameters to achieve the optimal control performance during different operating conditions of the system: fault-free, fault detected and fault isolated. The selection of design parameters is achieved using the linear matrix inequality (LMI) optimization technique.

关键词： Fault tolerant systems fault detection fault isolation observers uncertainty robustness

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