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International Conference on Clean Electrical Power (ICCEP)

作者： P. Stumpf I. Nagy Department of Mechatronics Optics and Engineering Informatics MTA-BME Control Engineering Research Group Budapest University of Technology and Economics Hungary MTA-BME Control Engineering Research Group Department of Automation and Applied Informatics Budapest University of Technology and Economics Hungary

The paper is concerned with the control of doubly fed induction generator applied in wind power technology. Assuming stator flux oriented vector control, the torque and power relations are derived. Using the relations, the slip versus torque and slip versus stator reactive power characteristics are drafted in subsynchronous and in supersynchronous state for investigating the control possibilities of the generator side converter supplying the rotor circuit. The effects of the d and q component of the converter output voltage for the torque, power and speed are studies in qualitative and quantitative way. The active and reactive power flows in stator and rotor side are shown.

关键词： Stators Rotors Reactive power Torque Wind power generation Wind speed Induction generators

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Wxshapeframework: An easy way for diagrams manipulation in C++ applications

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WSEAS Transactions on Computers 2010年第3期9卷 268-277页

作者： Bližňák, Michal Dulík, Tomáš Vašek, Vladimír Department of Informatics and Artificial Inteligence Faculty of Applied Informatics Tomas Bata University Nad Stráněmi 4511 760 05 Zlín Czech Republic Department of Automation and Control Engineering Faculty of Applied Informatics Tomas Bata University Nad Stráněmi 4511 760 05 Zlín Czech Republic

wxShapeFramework is new cross-platform software library written in C++ programming language which is suitable for creation of software applications manipulating diagrams, images and other graphical objects. Thanks to the underlying technologies such as wxWidgets toolkit and its XML-based persistent data container add-on called wxXmlSerializer it is an ideal solution for rapid and easy cross-platform visualisation software development. The paper reveals how the wxSF allows user to easily create applications able to interactively handle various scenes consisting of pre-defined or user-defined graphic objects (both vector- and bitmap-based) or GUI controls, store them to XML files, export them to bitmap images, print them etc. Moreover, thanks to applied software licence the library can be used for both open-source and commercialprojects on all main target platforms including MS Windows, MacOS and Linux.

关键词： Graphical user interfaces

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An Anti-Slip Predictive controller for a V-PRA Vehicle

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IFAC Proceedings Volumes 2011年第1期44卷 8415-8420页

作者： Carmen COCHIOR Robin De KEYSER Corneliu LAZAR Electrical Engineering Department Eindhoven University of Technology Eindhoven Netherlands EeSA-Department of Electrical energy Systems & Automation Ghent University Ghent Belgium Department of Automatic Control and Applied Informatics Faculty of Automatic Control and Computer Engineering Technical University Gh. Asachi Iasi Romania

Abstract In this paper an anti-slip predictive controller is designed and implemented in order to control the rear wheels of a V-PRA (Variable Powered Rear Axle) vehicle. The control algorithm is EPSAC, a Model based Predictive control (MPC) strategy. It uses explicitly a model of the system for the prediction of the future system output, in order to calculate the optimal control input which will bring the system to a required setpoint. The main goals of this predictive controller were setpoint trajectory following, disturbance rejection and maintain overall the stability of the V-PRA vehicle. Although the process is non-linear, being influenced by several parameters, linear discrete-time ARX models could be obtained based on system linearization around an operating point. An initial SISO controller was developed and tested, based on a Simulink model of the process. The control performances were tested successfully in presence of all kind of disturbances, denoting a robust controller.

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Infrared radiation, sensor, source and infrared camera measurement

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International Journal of Circuits, Systems and Signal Processing 2011年第6期5卷 581-588页

作者： Drga, R. Janáčová, D. Charvátová, Hana Department of Security Engineering Faculty of Technology of Tomas Bata University Zlín Czech Republic Department of Automation and Control Engineering Faculty of Applied Informatics of Tomas Bata University 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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Modelling Real-time Constraints Regarding Reconfiguration Aspects for IEC 61499 control Applications

Modelling Real-time Constraints Regarding Reconfiguration As...

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IEEE International Conference on Industrial informatics (INDIN)

作者： G. Grabmair A. Zoitl T. Strasser R. Froschauer Department for Industrial Informatics University of Applied Science Wels Austria Automation and Control Institute University of Technology Vienna Austria PROFACTOR Produktionsforschungs GmbH Steyr Austria

The complexity of automation and control systems is fast increasing in order to satisfy the arising needs of the manufacturing industry. The central exigencies for new production facilities are flexibility, adaptability and reconfigurability in combination with guarantees for downtime less operation. Additionally modern automation systems are supposed to execute control applications distributed across heterogeneous networks The standard IEC 61499 introduces a function block oriented architecture which should be able to satisfy most of these new requirements. Still some of the open issues within the standards definition are the consideration of real-time constrained applications, the missing possibilities and conventions to define an explicit execution order and the absence of an appropriate modelling technique for real-time constraint specification. Furthermore in case of reconfiguration of control applications similar or different real-time requirements must be fulfilled which have to be considered during the engineering process. Therefore the main topic of this paper discusses investigations on possibilities to define and model real-time constraints within reconfigurable IEC 61499 applications.

关键词： IEC standards Automatic control Timing control systems Manufacturing automation Programmable control Distributed control Electrical equipment industry Manufacturing industries Industrial control

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Syntax-based data augmentation for Hungarian-English machine translation

arXiv

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arXiv 2022年

作者： Nagy, Attila Nanys, Patrick Konrád, Balázs Frey Bial, Bence Ács, Judit Department Of Automation And Applied Informatics Budapest University Of Technology And Economics Hungary Institute For Computer Science And Control Eötvös Loránd Research Network

We train Transformer-based neural machine translation models for Hungarian-English and English-Hungarian using the Hunglish2 corpus. Our best models achieve a BLEU score of 40.0 on Hungarian-English and 33.4 on English-Hungarian. Furthermore, we present results on an ongoing work about syntax-based augmentation for neural machine translation. Both our code and models are publicly available. © 2022, CC BY.

关键词： Syntactics

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Mobile Robot Fault Tolerant control. Introducing ARTEMIC

Mobile Robot Fault Tolerant Control. Introducing ARTEMIC

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2010 2nd International Conference on Education Technology and Computer(第二届IEEE教育技术与计算机国际会议 ICETC 2010)

作者： Cristian Axenie Daniela Cernega Automation and Industrial Informatics Department Computer Science Faculty from "Dunarea de Jos" Univ Control Systems and Applied Informatics Computer Science Faculty from "Dunarea de Jos" Stiintei Stre

Real-time applications should timely deliver synchronized data-sets, minimize latency in their response and meet their performance specifications in the presence of disturbances and faults. The fault tolerant behavior in mobile robots refers to the possibility to autonomously detect and identify faults as well as the capability to continue operating after a fault occurred. This paper introduces a real-time distributed control application with fault tolerance capabilities for differential wheeled mobile robots, named ARTEMIC. Specific design, development and implementation details will be provided in this paper.

关键词： Mobile Robotics Fault Tolerant control Sliding Mode EKF Real-Time Linux Distributed control

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Reduction of the Optimization Efforts with Predictive control by Using Non-Equidistant Prediction Points

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IFAC Proceedings Volumes 2003年第8期36卷 57-62页

作者： U. Schmitz R. Haber R. Bars Department of Plant and Process Engineering Laboratory of Process Control University of Applied Science Cologne D-50619 Köln Betzdorf er Str. 2 Germany fax: +49-221-8275-2836 Department of Automation and Applied Informatics MTA-BME Control Research Group Budapest University of Technology and Economics Hungary

With predictive control most of the computation time is spent for the simulation of the predicted variables and for the optimization if constraints or nonlinear processes are assumed. In addition to the known blocking technique for the manipulated variable another possibility is calculating the control error not in each sampling point of the prediction horizon but only in some coincidence points. It will be shown that the best choice is to allocate the coincidence points exponentially thus that with small prediction steps more and with increasing prediction steps less coincidence points are considered. As a practical example the multivariable control of a distillation column model illustrates the benefits of the method presented.

关键词： Predictive control optimal control control applications chemical industry execution time

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Long-range optimal model and multi-step-ahead prediction identification for predictive control

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IFAC Proceedings Volumes 2003年第16期36卷 477-482页

作者： R. Haber U. Schmitz R. Bars Department of Plant and Process Engineering Laboratory of Process Control University of Applied Science Cologne D-50679 Köln Betzdorfer Str. 2 Germany fax: +49-221-8275-2836 Department of Automation and Applied Informatics Control Research Group of the Hungarian Academy of Sciences Budapest University of Technology and Economics Hungary

Long-range optimal prediction algorithms use the predicted output for several steps ahead. The prediction based on traditionally estimated model parameters does not result in an optimal prediction if the measurements are noisy or/and model structure differs from real process structure. In this paper two different identification schemes are presented and compared: long-range predictive single-model identification and simultaneous multi-step-ahead prediction identification. It is shown that the first method is easier to realize but the second one leads to more accurate results. Both methods are derived for a first-order model in details. Simulation runs and a level control example illustrate the algorithms presented.

关键词： Process identification prediction parameter estimation predictive control

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Real Time control Design for Mobile Robot Fault Tolerant control. Introducing the ARTEMIC Powered Mobile Robot.

Real Time Control Design for Mobile Robot Fault Tolerant Con...

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2010 IEEE/ASME International Conference on Mechatronic and Embedded System and Applications(2010 IEEE 机电一体化和嵌入式系统与应用国际会议)

作者： Cristian Axenie Razvan Solea Automation and Industrial Informatics Department Computer Science Faculty from ”Dunarea de Jos” Univ Control Systems and Applied Informatics Computer Science Faculty from ”Dunarea de Jos” University St

Real-time applications should timely deliver synchronized data-sets, minimize latency and jitter in their response and meet their performance specifications in the presence of disturbances and faults. The fault tolerant behavior in mobile robots refers to the possibility to autonomously detect and identify faults as well as the capability to continue operating after a fault occurred. This paper introduces a real-time distributed control application with fault tolerance capabilities for differential wheeled mobile robots, named ARTEMIC. The paper focuses on design details and performance analysis at the system operation level. Some stress tests are executed during normal operation to validate the proposal. Specific design, development and implementation details will be provided in this paper.

关键词： Mobile Robotics Fault Tolerant control Sliding Mode EKF Real-Time Linux Distributed control

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