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IMPROVED CONTINUATION METHOD controlLER FOR PWM SYSTEMS: AN EXPERIMENTAL CASE STUDY

Asian Journal of control 2008年第1期1卷

作者： T. Iwata M. Yamakita K. Furuta Dept. of Mechanical and Environment Informatics Tokyo Institute of Technology. Takaaki Iwata received the BE degrees in Mechanical Engineering in 1990 from Waseda University Japan. From 1990 to 1996 he jointed NOK Co. Ltd. In 1996 he received his ME degrees in Mechanical and Environmental Informatics from Tokyo Institute of Technology. He is currently a PhD student of Tokyo Institute of Technology. He is a member of SICE RSJ JSME and IEEE. Dept. of Control and Systems Engineering Tokyo Institute of Technology. Masaki Yamakita received Be ME and PhD from Tokyo Institute of Technology in 1984 1986 and 1989 respectively. From 1989 he was a Research Associate in the Department of Control Engineering of Tokyo Institute of Technology and from 1993 he was a Lecturer at Tokyohashi University of Technology. He is currently an Associate Professor in the Department of Control and Systems Engineering of Tokyo Institute of Technology. His research interests include robotics learning control robust control and non-linear control. Katsuhisa Furuta was born in Tokyo Japan in 1940. He received his B.S. M.S. and Ph.D. degrees in Chemical Engineering from Tokyo Institute of Technology in 1962 1964 and 1967 respectively. Since 1967 he has been a teaching staff of Tokyo Institute of Technology where he is currently a Professor of Graduate School of Information Science and Engineering. He is a fellow of IEEE and SICE. He is now a member of Science Council of Japan the secretary of the engineering division a council member of IFAC and the President of SICE in 1999.

In this paper, an improved version of online continuation method controller for PWM systems is presented. The online continuation method controller solves the PWM-type deadbeat control problem numerically. By using this algorithm, iterations for solving the set of nonlinear equations always start from a good solution candidate and therefore it can be used online. The original continuation method is modified so that it is applicable to real systems. The validity of the proposed control method is demonstrated by a laboratory-scale flexible arm manipulator.

关键词： PWM continuation method homotopy deadbeat GPC

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Off-line signature verification : Comparison of stroke extraction methods

Off-line signature verification : Comparison of stroke extra...

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2nd International Conference on Software and Data Technologies, ICSOFT 2007

作者： Kovári, Bence Horváth, Áron Kertész, Zsolt Illés, Csaba Department of Automation and Applied Informatics Budapest University of Technology and Economics Goldman György tér 3 Budapest Hungary Department of Control Engineering and Information Technology Budapest University of Technology and Economics Magyar Tudósok Körútja 2 Budapest Hungary

Stroke extraction is a necessary part of the majority of semantic based off-line signature verification systems. This paper discusses some stroke extraction variants which can be efficiently used in such environments. First the different aspects and problems of signature verification are discussed in conjunction with off-line analysis methods. It is shown, that on-line analysis methods perform usually better than off-line methods because they can make use of the temporal information (and thereby get a better perception of the semantics of the signature). To improve the accuracy of off-line signature verification methods the extraction of semantic information is necessary. Three different approaches are introduced to reconstruct the original strokes of a signature. One purely based on simple image processing algorithms, one with some more intelligent processing and one with a pen model. The methods are examined and compared with regard to their benefits and drawbacks on further signature processing.

关键词： Semantics

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Decoupled control of two tank system via algebraic μ-synthesis

Decoupled control of two tank system via algebraic μ-synthe...

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Mediterranean Conference on control and Automation (MED)

作者： M. Dlapa Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University Zlin Zlin Czech Republic

The paper deals with design of a robust controller via algebraic mu-synthesis for two tank system, which is a well known benchmark problem. The controller is designed by decoupling two-input two-output system into two identical SISO (Single-Input Single-Output) plants. The task of designing the robust controller is then performed by finding a suitable pole placement for the SISO systems with the robustness assessed by structured singular value denoted mu for generalized plant. The final controller is compared with D-K iteration as a standard tool for mu-synthesis through simulation for nominal plant and plant perturbed by the worst case perturbation.

关键词： control systems Robust control MIMO Automatic control State feedback Valves Temperature Transfer functions Design automation control engineering

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Design and Practical Application of Simple Robust controllers: A Parametric Approach

Design and Practical Application of Simple Robust Controller...

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IEEE Conference on control Technology and Applications (CCTA)

作者： Radek Matusu Roman Prokop Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Zlin Czech Republic

The contribution is focused on brief description of proposed control design process and primarily on practical application of obtained simple robust control algorithms. The synthesis is based on general solutions of Diophantine equations in the ring of proper and stable rational functions, Youla-Kucera parameterization and divisibility conditions and one of its main advantages can be seen in existence of single scalar tuning parameter. The real-time control behaviour has been tested on laboratory model of hot-air tunnel which has been mathematically described by various transfer functions containing parametric type of uncertainty.

关键词： Robust control control systems Uncertainty Tuning Transfer functions Optimal control control design control system synthesis Equations Testing

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Component fault diagnosis using dynamic co-active neuro-fuzzy systems 9

Component fault diagnosis using dynamic co-active neuro-fuzz...

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2007 9th European control Conference, ECC 2007

作者： Mirea, Letitia Patton, Ron J. Gh. Asachi Technical University of Iasi Department of Automatic Control and Industrial Informatics Blvd. D. Mangeron 53A IasiRO-700050 Romania University of Hull Department of Engineering Cottingham Road HU-6 7RX Hull United Kingdom

ISBN: (纸本)9783952417386

This paper investigates the development of a new type of dynamic neuro-fuzzy system with neuronal rules and its application to fault detection and isolation (FDI) of components of a dynamic process. Hybrid learning based on fuzzy clustering algorithm and the steepest-descent method, is used to train the proposed neuro-fuzzy system. The experimental case study concerns the component fault diagnosis of a three-tank system. A neuro-fuzzy simplified observer scheme is used to generate the residuals (symptoms) in the form of one step-ahead prediction errors. These are then analysed by a neural classifier in order to take the appropriate decision regarding the actual process behaviour. © 2007 EUCA.

关键词： Steepest descent method

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Incorporating a generic model of subcutaneous insulin absorption into the AIDA v4 diabetes simulator: 1. A prospective collaborative development plan

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Journal of Diabetes Science and Technology 2007年第3期1卷 423-435页

作者： Lehmann, Eldon D. Tarín, Cristina Bondia, Jorge Teufel, Edgar Deutsch, Tibor Department of Imaging (MRU) Imperial College of Science Technology and Medicine (NHLI) Royal Brompton Hospital London United Kingdom Department of Imaging University of Toronto ON Canada ITEAM Technical University of Valencia (UPV) Valencia Spain Department of Systems Engineering and Control Technical University of Valencia (UPV) Valencia Spain Department of Informatics and Medical Technology Faculty of Health Care Semmelweis University Budapest Hungary

Introduction: AIDA v4 is an interactive educational diabetes simulator that has been made available, for over a decade, without charge via the Internet. The software is currently freely accessible at http://***. This report sets out a collaborative development plan to enhance the program with a new model of subcutaneous insulin absorption, which permits the simulation of rapidly acting and very long-acting insulin analogues, as well as insulin injection doses larger than 40 ***: A novel, generic, physiological subcutaneous insulin absorption model is overviewed and a methodology is proposed by which this can be substituted in place of the previously adopted insulin absorption model utilized within AIDA v4.3a. Apart from this substitution it is proposed to retain the existing model of the glucoregulatory system currently used in AIDA v4.3a. Results: Initial simulation results based on bench testing of this approach using MATLAB are presented for the exogenous insulin flow profile (Iex) following subcutaneous injections of a rapidly acting insulin analogue, a short-acting (regular) insulin preparation, intermediate-acting insulins (both Semilente and neutral protamine Hagedorn types), and a very long-acting insulin analogue. Discussion: It is proposed to implement this collaborative development plan - first by bench testing the approach in MATLAB and then by integrating the generic subcutaneous insulin absorption Iex model into the AIDA simulator in Pascal. The aim is to provide enhanced functionality and educational simulations of regimens utilizing novel insulin analogues, as well as injections larger than 40 units of insulin. © Diabetes Technology Society.

关键词： Absorption Computer Diabetes Insulin Model Simulation Software

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PLL/PID motor control system by using time-domain operation of PWM signal

PLL/PID motor control system by using time-domain operation ...

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SICE Annual Conference

作者： Hidekazu Machida Fuminori Kobayashi Department of Control Engineering Maizuru National College of Technology Kyoto Japan Department of System Innovation and Informatics Kyushu Institute of Technology Fukuoka Japan

In PLL motor speed control systems, PID-type loop filter can improve disturbance sensitivity. In this article, we show that, an existing PI-type PLL/PWM motor speed controller (Machida and Kobayashi, 2002) can be supp... 详细信息

ISBN: (纸本)4907764286;97

关键词： Pulse width modulation Phase locked loops Three-term control Motor drives Time domain analysis Velocity control Frequency Servomotors Electronic mail Filters

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Influence of Stochastic Communication Losson the Stability of a Formation of Multiple Agents

Influence of Stochastic Communication Losson the Stability o...

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American control Conference (ACC)

作者： Gajamohan Mohanarajah Tomohisa Hayakawa Department of Control and Systems Engineering Tokyo Institute of Technology Tokyo Japan Department of Mechanical and Environmental Informatics Tokyo Institute of Technology Tokyo Japan

Stability conditions of networked multiple mobile agents in the face of stochastic communications failure are derived. Using a graph-theoretic approach, we provide stability analysis for the case where we employ zero-order hold sampled-data controller and the information of relative positions/velocities are unavailable for certain time instants at each agent. Finally, numerical examples are provided to illustrate the theoretical results obtained in this paper.

关键词： Stochastic processes Stability control systems Communication system control Multiagent systems Communication networks Stochastic systems Mobile communication Mobile agents Velocity control

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Near Field Communication technology: Contactless applications in mobile environment

Near Field Communication technology: Contactless application...

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8th International Symposium of Hungarian Researchers on Computational Intelligence and informatics, CINTI 2007

作者： Benyó, Balázs Dept. of Control Engineering and Information Technology Budapest University of Technology and Economics Muegyetem rkp. 3-9 H-1111 Budapest Hungary Department of Informatics Széchenyi István University Egyetem tér 1 H-9026 Gyor Hungary

StoLPaN, a pan-European consortium of companies, universities and user groups co-funded by the European Commission (EU), Information Society Technologies (IST) Programme aims to define open commercial and technical frameworks for the remote management of NFC-enabled (NFC: Near Field Communication) services on mobile devices. These frameworks will facilitate the deployment of NFC-enabled mobile applications across a wide range of vertical markets, regardless of the phone type and the nature of the services required. This paper introduces the application opportunities of the NFC technology, the business aspects of the NFC based service development and the technical infrastructure implementing the core of the NFC-enabled services.

关键词： Near field communication

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Component fault diagnosis using dynamic co-active neuro-fuzzy systems

Component fault diagnosis using dynamic co-active neuro-fuzz...

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European control Conference (ECC)

作者： Letitia Mirea Ron J. Patton Department of Automatic Control and Industrial Informatics “Gh. Asachi” Technical University of Iasi Iasi Romania Department of Engineering University of Hull Hull United Kingdom

关键词： Vectors Fault diagnosis Biological neural networks Training Clustering algorithms Observers

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