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control System Design Aspects Using the Delta Transformation

IFAC Proceedings Volumes 2003年第8期36卷 245-250页

作者： Zs. Prcitl R. Bars Department of Automation and Applied Informatics Budapest University of Technology and Economics Control Engineering Research Group of the Hungarian Academy of Sciences H-1111 Budapest Goldmann Gy. tér 3. Hungary fax: +36-1-463-2871

In the paper there are presented some controller design methods in delta domain based on the delta model of the plant aiming to compare them with similar methods specific to continuous and discrete time design. Design of PI, PID and Dead-beat algorithms are presented and exemplified for second and third order plants (benchmarks). The design of PID controllers use (i) optimization techniques based on Modulus Optimum method and (ii) pole cancellation method with imposing an "optimum" value for the phase margin. An illustrative sensitivity analysis between delta domain controllers and Z discrete time controllers has been made. Simulations are made regarding delta design and compared with results obtained through continuous design and Z-discrete implementation. Dead-beat controllers are considered optimal from the point of view of settling time. The results support as a viable alternative the design in delta domain and show less sensitivity in the case of delta controllers versus the discrete (Z) design.

关键词： controller design delta domain PID controller optimization Dead-beat controller illustrative sensitivity analysis

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Direct Learning control Design for a Class of Linear Time-varying Switched Systems

Direct Learning Control Design for a Class of Linear Time-va...

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International Conference on control and automation (ICCA)

作者： Jian-Xin Xu P. Korondi Rui Yan Zhi-Hong Guan Department of Electrical and Computer Engineering National University of Singapore Singapore Department of Automation and Applied Informatics Budapest University of Technology and Economics Wuhan China Department of Control Science and Engineering Huazhong University of Science and Technology Wuhan China

In this paper, a direct learning control method for a class of switched systems is proposed. The objective of direct learning is to generate the desired control profile for a newly switched system without any feedback, even if the system may have uncertainties. This is achieved by exploring the inherent relationship between any two systems before and after a switch. The new method is applicable to a class of linear time varying, uncertain and switched systems, when the trajectory tracking control problem is concerned. A numerical simulation demonstrates the effectiveness of the proposed method.

关键词： control design Time varying systems Switched systems control systems Switches Feedback Uncertainty Trajectory Numerical simulation

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INTERNAL MODEL-BASED controlLER FOR A SOLAR PLANT

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IFAC Proceedings Volumes 2002年第1期35卷 49-54页

作者： István Farkas István Vajk Department of Physics and Process Control Szent István University Páter K. u. 1. H-2103 Gödöllö Hungary Department of Automation and Applied Informatics Budapest University of Technology and Economics Budapest H-1521 Hungary

In this study a model-based control designed for the operation of a solar power plant is discussed. The simplified physically based model of the plant was developed on the basis of the energy balances including the solar insulation as an input, the heat transferred by the flow of the oil as a working media and the overall heat loss from the plant. The outlet temperature of the collector field is the reference/set-point value while the volumetric flow rate of the oil is the manipulating variable to the controller. The solar radiation, the ambient temperature and the inlet oil temperature to the collector field are assumed as the disturbances. The model developed and identified is an internal part of the controller. The initial control experimental results are also presented.

关键词： Solar power plant physically-based model identification internal model control (IMC)

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Off-Line Signature Verification Based on Feature Matching

Off-Line Signature Verification Based on Feature Matching

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IEEE International Conference on Intelligent Engineering Systems (INES)

作者： Bence Kovari Zsolt Kertesz Attila Major Department of Automation and Applied Informatics Budapest University슠of슠Technology슠and슠Economics Hungary Department of Control Engineering and Information Technology Budapest University슠of슠Technology슠and슠Economics Hungary

This paper presents a novel approach for off-line signature verification. 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). An assumption is made, that off-line verification methods have difficulties improving their results because of the high level of abstraction they use, which is a direct consequence of the missing semantics. Afterwards a solution is presented with the ability to preserve some semantic information, and thereby deliver a better ability to analyze the results and optimize the system.

关键词： Handwriting recognition Data acquisition Feature extraction Information analysis automation informatics control engineering Information technology Error analysis Law

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Predictive model reference control based on discrete laguerre network with integrator

Predictive model reference control based on discrete laguerr...

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International Conference on Process control (PC)

作者： J. Škultéty E. Miklovičová R. Bars Faculty of Electrical Engineering and Information Technology Slovak University of Technology Bratislava Slovakia Department of Automation and Applied Informatics Control Engineering Research Group of the HAS Budapest University of Technology and Economics Budapest Hungary

In the paper predictive model reference control based on Laguerre network using the closed loop with integrator is presented. The performances of this control structure are compared with those of the internal model co... 详细信息

关键词： Predictive models control design Liquids Mathematical model Simulation Adaptation models

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Carpet wear classification based on support vector machine pattern recognition approach

Carpet wear classification based on support vector machine p...

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IEEE International Conference on Intelligent Computer Communication and Processing (ICCP)

作者： C. Copot S. Syafiie S. Vargas R. de Keyser L. Van Langenhove C. Lazar Department of Automatic Control and Applied Informatics “Gh. Asachi” Technical University of Iasi Romania Department of Electrical energy Systems and Automation Ghent University Belgium Department of Telecommunication Ghent University Belgium Department of Textile Ghent University Belgium

Nowadays, the carpet quality analysis is determined in industry by human experts, because the automated assessment is not capable of matching the human expertise. Therefore, the carpet company demands a reliable and economic standardization of carpet wear level. This paper presents a new strategy for analyzing and classifying the texture of the wear carpet surface of 3D image, where 3D image is produced by 3D laser scanner. 2D image is obtained from 3D data resample on different grid sizes. The features extracted are based on Haralick descriptors of co-occurrence matrix. These features are used as inputs to a classifier system, which is based on support vector machine (SVM). Multi-class classification training based on SVM is applied. The performance of the new technique proposed gives an average of over 92% correct labeling.

关键词： Support vector machines Support vector machine classification Pattern recognition Humans Standardization Image analysis Image texture analysis Surface texture Surface emitting lasers Feature extraction

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Bio-inspired control by overlapping adaptive clusters: a vehicle platoon case study

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IFAC-PapersOnLine 2023年第2期56卷 1460-1465页

作者： Ovidiu Pauca Anca Maxim José M. Maestre Constantin F. Caruntu “Gheorghe Asachi” Technical University of Iasi Department of Automatic Control and Applied Informatics Blvd. D. Mangeron 27 700050 Iasi Romania University of Seville Department of Systems and Automation Engineering Camino Descubrimientos S/N.- Isla Cartuja 41092 Seville Spain

Clustering vehicles in a platoon by exchanging information through communication networks leads to an improvement in their performance with a moderate cooperation effort. In particular, in this paper, a bio-inspired methodology for overlapping coalitions of vehicles is proposed, which optimizes communication and control performance. The results obtained using the proposed adaptive clusters method are compared with the ones obtained by a conventional coalitional control strategy, and the comparison illustrates the improved efficiency of the proposed method.

关键词： Bio-inspired control coalitional control overlapping topology vehicle platoon

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Infrared camera measurement of source

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International Journal of Circuits, Systems and Signal Processing 2011年第6期5卷 589-596页

作者： Drga, R. Janáčová, D. Charvátová, H. Tomas Bata University Faculty of Applied Informatics Department of Security Engineering nám. T. G. Masaryka 5555 760 01 Zlín Czech Republic Faculty of Applied Informatics Department of Automation and Control Eigineering Tomas Bata University nám T. G. Masaryka 5555 760 01 Zlín Czech Republic

The paper deals with the infrared radiation source EK-8520, ability to measure using a thermocouple TP334 and temperature by thermal imager for calculating spectral range. It prepares the theoretical and practical bas... 详细信息

关键词： Infrared radiation

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Single-Parameter Tuning of PI controllers: From Theory to Practice

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IFAC Proceedings Volumes 2008年第2期41卷 4964-4969页

作者： Radek Matušů Roman Prokop Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Nad Stráněmi 4511 760 05 Zlín Czech Republic Tel: +420 57 603 3015 Fax: +420 57 603 5279

The paper deals with influence of a single scalar positive tuning parameter on performance properties of the closed control loop which contains algebraically designed PI controller while the response quality is evaluated by the size of first under- or overshoots. The controller coefficients are calculated from general solutions of diophantine equations in the ring of proper and Hurwitz stable rational functions. Subsequently, these controllers can be tuned by the only parameter. The contribution brings simple tuning rules and, moreover, it presents their possible practical application during control of real laboratory model assumed as system with parametric uncertainty.

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Robust stabilization of interval plants using Kronecker summation method

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WSEAS Transactions on Systems 2010年第9期9卷 917-926页

作者： Matušů, Radek Prokop, Roman Matejičková, Katarína Bakošová, Monika Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University in Zlín Nad Stráněmi 4511 76005 Zlín Czech Republic Department of Information Engineering and Process Control Faculty of Chemical and Food Technology Slovak University of Technology in Bratislava Radlinského 9 81237 Bratislava Slovakia

This paper deals with design of continuous-time robustly stabilizing Proportional-Integral (PI) controllers for interval systems using the combination of Kronecker summation method, sixteen plant theorem and an algebraic approach to controller tuning. The effectiveness and practical applicability of the proposed method is demonstrated in both simulation and real experiments including control of a third order nonlinear electronic plant.

关键词： Continuous time systems

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