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2012 IEEE International Conference on control System, Computing and engineering, ICCSCE 2012

作者： Samsudin, S.I. Rahrnat, M.F. Wahab, Norhaliza Abdul Razali, Mashitah Che Gaya, Muhamad Sani Salim, Sy Najib Sy Department of Industrial Electronics Faculty of Electronics and Computer Engineering Universiti Teknikal Malaysia Melaka Hang Tuah Jaya 76100 Durian Tunggal Melaka Malaysia Department of Control and Instrumentation Engineering Faculty of Electrical Engineering Universiti Teknologi Malaysia 81310 Skudai Malaysia Department of Control Instrumentation and Automation Faculty of Electrical Engineering Universiti Teknikal Malaysia Melaka Hang Tuah Jaya 76100 Durian Tunggal Melaka Malaysia

ISBN: (纸本)9781467331432

Tuning of controller is one of the most basic functions in control engineering in obtaining optimal control parameters and hence achieving optimal dynamic responses of the system. The work presents the self-Tuning PI controller that potential to auto-Tune the controller parameters and adapting the changes in controlled process parameter for a MIMO system. The decentralized PI controller with an adaptive interaction algorithm is developed and tested to nonlinear multivariable wastewater treatment plant. It is aims to self-Tune the PI control parameters in regulating the substrate and DO concentrations from a steady state operating point. It was observed that the proposed control structure and the tuning algorithm were successfully tracks the desired set-point with considerable effects in noisy environment. © 2012 IEEE.

关键词： MIMO systems

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Recent advances in analysis and control design for switched fuzzy systems: A review

Recent advances in analysis and control design for switched ...

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2012 6th IEEE International Conference Intelligent Systems, IS 2012

作者： Ojleska, Vesna Kolemishevska-Gugulovska, Tatjana Dymirkovsky, Gyorgyi SS Cyril and Methodius University in Skopje Faculty of Electrical Eng. and Information Technologies Institute of Automation and Systems Engineering 1000 Skopje R. Macedonia Faculty of Engineering Depts. of Computer and of Control Engineering Dogus University of Istanbul Acibadem TR-34722 Istanbul R. Turkey

ISBN: (纸本)9781467327824

This paper overviews recent advances in the field of switched fuzzy systems, switched systems whose subsystems are fuzzy systems, followed by the comparative study for this kind of systems. Starting with the basic ideas of switched fuzzy systems, the comparative study is aimed in introducing the diverse approaches in their model construction, as well as the challenges related with the stability analysis and stabilization of such systems. The last includes the issue of stability analysis and finding conditions for existence of switched fuzzy controllers which will stabilize the nonlinear system. © 2012 IEEE.

关键词： Hybrid systems

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Personalized therapy selection by using multi-objective optimization

Personalized therapy selection by using multi-objective opti...

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IEEE International Conference on Intelligent engineering Systems (INES)

作者： Ivars Karpics Institute of computer control automation and computer engineering Faculty of computer science and information technology Riga Technical University Riga Latvia

In the article a therapy selection method by using topological modelling and multi- objective optimization is presented. In a medicine practice a doctor by taking into the count patients' health state and laboratory results, tries to suggest a treatment strategy, which mostly is a drug therapy. To solve this task a decision support system has been developed and proposed. The system includes a mathematical model of three self connected diseases. Therapies are evaluated by five efficiency objectives. To find the optimal therapy, seven multi- objective methods are selected and used. Optimization methods form decision support module which is implemented in the medical computer system. To evaluate a performance of the system, test examples are analysed. Conclusion includes the summary and proposals of further research.

关键词： Mathematical model Drugs Optimization methods computers

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Principles of the active collision mitigation system for vehicles involved in light impact 13

Principles of the active collision mitigation system for veh...

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13th Mini Conference on Vehicle System Dynamics, Identification and Anomalies, VSDIA 2012

作者： Mihály, András Gáspár, Péter Szabó, Zoltán Sename, Oliver Dugard, Luc Department of Control and Transport Automation Faculty of Transportation Engineering and Vehicle Engineering Budapest University of Technology and Economics Bertalan L. U. 2. Budapest Hungary Computer and Automation Research Institute Systems and Control Laboratory Kende U. 13-17 Budapest Hungary Control Systems Department GIPSA-Lab 11 Rue des Mathématiques ENSE3 BP 46 St martin d'Hrescedex GrenobleF-38402 France

ISBN: (纸本)9789633131022

The paper presents a collision mitigation method in which the aim is to stabilize the motion of the vehicle after a light impact has occurred. A yaw rate servo control based on the bicycle model is applied for control purposes. The collision is assumed to have been detected by a passive safety system, e.g., airbag sensors. The control system is activated by the monitoring signal. After the collision has occurred the motion of the vehicle and the operation of the control system are illustrated through CarSim simulation examples. Two control solutions are analyzed: in the first case active steering is used while in the second case steering is combined with differential braking. With the knowledge of certain vehicle parameters and the impact force and direction, post impact vehicle states (yaw rate, velocities, roll rate) can be analyzed. A sensitivity analysis is carried out to determine the validity range of the vehicle model in the presence of uncertainties and different kinds of impact forces. Several software packages are used for the design and analysis of the controlled system. The control design is performed by using the Matlab/Simulink software and the verification of the designed controller is performed by using the CarSim software.

关键词： Automobile steering equipment

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An introduction to the special issue on time delay systems: Modelling, identification, stability, control and applications

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WSEAS Transactions on Systems 2012年第10期11卷 539-540页

作者： Pekař, Libor Neri, Filippo Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Zlín Czech Republic Department of Computer Science University of Naples Federico II Naples Italy

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Fault tolerant adaptive estimation of nonlinear processes using redundant measurements

Fault tolerant adaptive estimation of nonlinear processes us...

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Mediterranean Conference on control and automation (MED)

作者： M. Miranda A. Edelmayer Laboratory of Unit Operations Department of Chemical Engineering Faculty of Engineering University of Los Andes Merida Venezuela Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences (ATOMKI) Budapest Hungary

This paper presents a dual layer approach for robust fault tolerant estimation of nonlinear processes using a combined adaptive extended Kalman filter and fault detection and filter reconfiguration. From the one hand, the filter is made robust in face of environment uncertainty using adaptive filtering. To this end, the filter identifies the measurement covariance by means of recursive estimation, upon which the adaptation relies, to suppress the effect of sporadic variations in the quality of measurements as well as compensates for incipient sensor faults. From the other hand, fault monitoring is continuously applied to the filter's innovation in an attempt to initiate filter reconfiguration when the adaptation mechanism alone is not able to overcome the failure situation. The discussion of the results is embedded in the application framework of state estimation of a batch distillation process.

关键词： Temperature measurement Mathematical model Estimation Technological innovation Noise Fault tolerance Fault tolerant systems

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Takagi-Sugeno control of the Elevation Channel of A Twin-Rotor System Using Closed-Loop Empirical Data

Takagi-Sugeno Control of the Elevation Channel of A Twin-Rot...

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American control Conference

作者： Hamidreza Azimian Alireza Fatehi Babak N. Araabi Department of Mechanical and Materials Engineering The University of Western Ontario (UWO) London ON Canada Advanced Process Automation and Control (APAC) Research Group Industrial Control Center of Excellence Faculty of Electrical and Computer engineering K. N. Toosi University of Technology Tehran Iran School of Electrical and Computer Engineering University of Tehran Tehran Iran

ISBN: (纸本)9781457710957

In this paper, design of Takagi-Sugeno controllers for a twin-rotor system from empirical data is addressed. First, identification of linear models using Prediction Error Method in the presence of nonlinear distortions and in feedback systems is revisited, and it is demonstrated that feedback nonlinear systems with an integral action can be locally represented by linear models rather than affine models. Moreover, it is demonstrated that how the consistency and unbiasedness of the identified models can be improved by proper design of the experiments. In order to ensure that the unmodeled contributions in the resulting piecewise linear model are sufficiently small, a criterion is proposed based on the small-gain theorem that can be used for unfalsification of the piecewise linear model. Finally, by taking advantage of the separation principle, design of fuzzy Takag-Sugeno state feedback and observer is formulated in terms of Linear Matrix Inequalities (LMIs). The implementation results on the actual system demonstrate significant improvements with respect to the initial controller and previous work on similar systems.

关键词： Nonlinear systems Closed loop systems Observers Uncertainty Data models Predictive models

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Recent Advances in Analysis and control Design for Switched Fuzzy Systems: A Review

Recent Advances in Analysis and Control Design for Switched ...

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IEEE International Conference Intelligent Systems

作者： Vesna Ojleska Tatjana Kolemishevska-Gugulovska Gyorgyi Dymirkovsky SS Cyril and Methodius University in Skopje Faculty of Electrical Eng. and Information Technologies Institute of Automation & Systems Engineering Rugjer Boshkovik bb 1000 Skopje R. Macedonia Faculty of Engineering Depts. of Computer & of Control Engineering Dogus University of Istanbul Acibadem TR-34722 Istanbul R. Turkey

ISBN: (纸本)9781467322768

关键词： control fuzzy logic fuzzy systems hybrid systems nonlinear systems switched systems switching Fuzzy systems Stability analysis analytical control design control FUZZY controlLER Nonlinear systems

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A self-tuning decentralized PI control for multivariable plant

A self-tuning decentralized PI control for multivariable pla...

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IEEE International Conference on control System, Computing and engineering (ICCSCE)

作者： S. I. Samsudin M. F. Rahrnat Norhaliza Abdul Wahab Mashitah Che Razali Muhamad Sani Gaya Sy Najib Sy Salim Faculty of Electronics and Computer Engineering Universiti Teknikal Malaysia Melaka Durian Tunggal Melaka Malaysia Universiti Teknologi Malaysia Skudai Johor MY Department of Control and Instrumentation Engineering Universiti Teknologi Malaysia Skudai Malaysia Department of Control Instrumentation and Automation Universiti Teknikal Malaysia Melaka Durian Tunggal Melaka Malaysia

Tuning of controller is one of the most basic functions in control engineering in obtaining optimal control parameters and hence achieving optimal dynamic responses of the system. The work presents the self-tuning PI controller that potential to auto-tune the controller parameters and adapting the changes in controlled process parameter for a MIMO system. The decentralized PI controller with an adaptive interaction algorithm is developed and tested to nonlinear multivariable wastewater treatment plant. It is aims to self-tune the PI control parameters in regulating the substrate and DO concentrations from a steady state operating point. It was observed that the proposed control structure and the tuning algorithm were successfully tracks the desired set-point with considerable effects in noisy environment.

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Determining biochemical reaction network structures for kinetic polynomial models with uncertain coefficients

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AIP Conference Proceedings 2012年第1期1479卷 2427-2430页

作者： Gábor Szederkényi Z. A. Tuza Katalin M. Hangos Process Control Research Group Computer and Automation Research Institute Hungarian Academy of Sciences. Kende u. 13-17 H-1111 Budapest Hungary and Faculty of Information Technology Pázm Hungary Faculty of Information Technology Pázmány Péter Catholic University Práter u. 50/a H-1083 Budapest Hungary Process Control Research Group Computer and Automation Research Institute Hungarian Academy of Sciences. Kende u. 13-17 H-1111 Budapest Hungary and Dept. of Electrical Engineering and Informatio Hungary

A numerical method is proposed in this paper for the computation of dense and sparse reaction network structures for kinetic polynomial models with uncertain parameters represented as intervals. The problem is traced ...

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