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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Radu-Emil Precup Claudia-Adina Bojan-Dragos Marian Barbu Sergiu Caraman Department of Automation and Applied Informatics Politehnica University of Timisoara Timisoara Romania Dept. of Automatic Control and Electrical Engineering “Dunarea de Jos” University of Galati Galati Romania

The paper proposes a simple Takagi-Sugeno PI-fuzzy controller for an anaerobic digestion process. A fifth order nonlinear model of the anaerobic digestion process is first presented. A second order linear model of the process is next proposed, and the parameters of the linear model are obtained from an optimization problem solved by a Gravitational Search Algorithm. A PI controller is designed for the linear process model using a frequency domain approach in terms of imposing the phase margin. The Takagi-Sugeno PI-fuzzy controller is designed on the basis of the linear PI controller. The Takagi-Sugeno PI-fuzzy controller is validated by simulation using the nonlinear process model in the fuzzy control system.

关键词： Mathematical model Process control control systems Fuzzy control Takagi-Sugeno model Modeling Biological system modeling

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Extremum seeking control for an anaerobic digestion process

Extremum seeking control for an anaerobic digestion process

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International Conference on System Theory, control, and Computing (ICSTCC)

作者： Sergiu Caraman George Ifrim Emil Ceangă Marian Barbu Mariana Titica Radu-Emil Precup Department of Automatic Control and Electrical Engineering “Dunarea de Jos” University of Galati Galati Romania Universite de Nantes CNRS GEPEA UMR-CNR 6144 Bd. de l'Universite France Department of Automation and Applied Informatics Politehnica University of Timisoara Timisoara Romania

The paper deals with the optimal control (extremum seeking algorithm) of an anaerobic digestion process. It uses a simplified version of the anaerobic digester model. Three cases of optimization criteria are considered taking into account the quality variable of the process: 1. the methane quantity in gaseous form, 2. the level of pollutants (it is expressed as the difference between the influent substrate and the substrate quantities accumulated in the digester) and 3. an aggregated quality variable resulted from the combination of the first two criteria. The analysis of anaerobic digestion process static characteristics shows that each characteristic reaches a point of maximum. The extremum seeking algorithm aims to keep the operating point in this point of maximum. The simulation results confirm the good behaviour of the extremum seeking algorithm.

关键词： Mathematical model Process control Biological system modeling Microorganisms Carbon dioxide Optimization Substrates

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An artificial vision solution for reusing discarded parts resulted after a manufacturing process

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IOP Conference Series: Materials Science and engineering 2016年第2期145卷

作者： V Cohal A Cohal Tehnical University 'Gh. Asachi' of Iaşi - Romania Faculty of Machine Manufacturing and Industrial Management Department of Machine Manufacturing Technology Blvd. Mangeron No. 59A 700050 Iasi Romania Tehnical University 'Gh. Asachi' of Iaşi - Romania Faculty of Automatic Control and Computer Engineering Department of Automatic Control and Applied Informatics Blvd. Mangeron No. 27 700050 Iasi Romania

The profit of a factory can be improved by reusing the discarded components produced. This paper is based on the case of a manufacturing process where rectangular metallic sheets of different sizes are produced. Using an artificial vision system, the shapes and the sizes of the produced parts can be determined. Those sheets which do not respect the requirements imposed are labeled as discarded. Instead of throwing these parts, a decision algorithm can analyze if another metallic sheet with smaller dimensions can be obtained from these. Two methods of decision are presented in this paper, considering the restriction that the sides of the new sheet has to be parallel with the axis of the coordinate system. The coordinates of each new part obtained from a discarded sheet are computed in order to be delivered to a milling machine. Details about implementing these algorithms (image processing and decision respectively) in the MATLAB environment using Image Processing Toolbox are given.

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World Congress Integrative Medicine & Health 2017: part two Berlin, Germany. 3-5 May 2017 Abstracts

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BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017年第SUPPL 1期17卷 317-317页

作者： [Anonymous] National Institute of Complementary Medicine Western Sydney University Sydney Australia Department of General Practice University of Melbourne Melbourne Australia School of Rehabilitation Therapy Queens University Ontario Canada School of Health and Biomedical Sciences RMIT University Melbourne Australia School of Public Health and Preventive Medicine Monash University Melbourne Australia NAFKAM UiT The Arctic University of Norway Tromsø 9019 Norway Department of Psychology University of Sheffield Sheffield S1 1HD UK Department of Community Medicine UiT The Arctic University of Norway Tromsø 9019 Norway Institue of General Practice Goethe University Frankfurt Frankfurt 60590 Germany Department of General Practice University of Tübingen Tübingen Germany Med.-pharm. Information/Klinische Forschung WALA Heilmittel GmbH Bad Boll/ Eckwälden 73087 Germany Ressortleitung Wissenschaft WALA Heilmittel GmbH Bad Boll/Eckwälden 73087 Germany University of Minnnesota Minneapolis 55455 MN USA Minneapolis College of Art and Design Minneapolis MN USA Duke University Durham NC USA Caring Bridge Minneapolis MN USA University of Minnesota Minneapolis 55455 MN USA Phytomedicines Supply and Development Center Innovation & Development Bayer Consumer Health Steigerwald Arzneimittelwerk GmbH Darmstadt 68526 Germany University Medicine of Rostock Rostock 18055 Germany Primary Care and Population Sciences University of Southampton Southampton UK Psychology University of Southampton Southampton UK Faculty of Health University of Technology Sydney Sydney 2007 Australia st Department of Pathology and Experimental Cancer Research Semmelweis University Budapest 1085 Hungary University of Alberta Edmonton Canada Parker University Dallas TX USA Canadian Memorial Chiropractic College Toronto Canada Anglo-European College of Chiropractic Bournemouth UK University of Calgary Calgary Canada University of Toronto Toronto Canada University of Hawaii at Manoa Honolulu Hawai’

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Mechanism and kinetic studies on the synthesis of glyceraldehyde via anodic oxidation of glycerol 21

Mechanism and kinetic studies on the synthesis of glyceralde...

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21st International Congress of Chemical and Process engineering, CHISA 2014 and 17th Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction, PRES 2014

作者： Beltrán-Prieto, J.C. Slavik, R. Kolomazík, K. Pecha, J. Tomas Bata University in Zlin Department of Automation and Control Engineering Faculty of Applied Informatics Nam. T. G. Masaryka 5555 Zlin760 01 Czech Republic Tomas Bata University in Zlin Department of Environmental Engineering Protection Faculty of Technology Nam. T. G. Masaryka 275 Zlin762 72 Czech Republic

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Implementation of wearable sensors for fall detection into smart household

Implementation of wearable sensors for fall detection into s...

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12th IEEE International Symposium on applied Machine Intelligence and informatics, SAMI 2014

作者： Biroš, Ondrej Karchňák, Ján Šimšík, Dušan Hošovský, Alexander Technical University of Košice Mechanical Engineering Faculty Department of Automation Control and Human-machine Interactions Košice Slovakia Technical University of Košice Faculty of Manufacturing Technologies with A Seat in Prešov Department of Mathematics Informatics and Cybernetics Prešov Slovakia

ISBN: (纸本)9781479934423

The proposed paper describes implementation of wearable sensors into smart household environment. Wearable sensor prototype is based on MEMS inertial measurement unit, containing accelerometer and gyroscope. Fall detection using wearable sensors has been determined as suitable function in several implementations. Fall detection algorithm, considering information about acceleration, tilt and angular velocity was developed and tested. Communication of IMU with PC is described as well as experimental verification of the algorithm. © 2014 IEEE.

关键词： Sensors

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Synchronising second-order multi-agent systems under dynamic topology via reference model-based algorithm

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Journal of control and Decision 2014年第3期1卷 214-225页

作者： Jiahu Qin Huijun Gao Tasawar Hayat Fuad E.Alsaadi Department of Automation University of Science and Technology of ChinaHefeiChina Research School of Engineering Australian National UniversityCanberraAustralia Research Institute of Intelligent Control and Systems Harbin Institute of TechnologyHarbinChina Nonlinear Analysis and Applied Mathematics Group King Abdulaziz University(KAU)JeddahSaudi Arabia Faculty of Engineering Department of Electrical and Computer EngineeringKing Abdulaziz UniversityJeddahSaudi Arabia Department of Mathematics Quaid-I-Azam UniversityIslamabadPakistan

This paper revisits the synchronisation problem for second-order multi-agent systems(MASs)under dynamically changing communication *** employing the reference model-based synchronisation algorithm,it is finally shown that synchronisation for both the position and velocity states can be achieved if the union of the communication topologies has a directed spanning tree frequently *** extends the existing results obtained for second-order MASs which exploits mild communication topology condition guaranteeing the synchronisation to a more general *** analysis is successfully performed by exploiting the product properties of row-stochastic matrices,which can also provide us with an estimate the convergence rate towards the synchronisation.

关键词： synchronisation double-integrator agents weakest possible communication topology rate of convergence

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Improving dynamics of vector controlled IM drive by resampling SVM under low frequency ratio

Improving dynamics of vector controlled IM drive by resampli...

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International Conference on Electrical Machines, ICEM

作者： Péter Stumpf Rafael K. Járdán István Nagy István Vajk Department of Automation and Applied Informatics Budapest University of Technology and Economics MTA-BME Control Engineering Research Group Budapest Hungary

ISBN: (纸本)9781479943883

Field Oriented control (FOC) technique is one of the most frequently applied algorithm to control the torque and the speed of a three-phase electric drive. The paper focuses on high speed or high-pole count motor FOC drives when both the sampling over reference frequency ratio F and the carrier over reference frequency m f is low. The paper presents that the stability range of a speed sensor-less FOC motor drive can be extended by recalculating the reference signal of the Space Vector Modulation algorithm at the negative peak of the carrier signal as well by approximating the rotor flux angle change over one half carrier period. The result was verified by computer simulations and laboratory measurements.

关键词： Support vector machines Resistors Torque Stators Current measurement Pulse width modulation Rotors

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Novel approach of microgrid control

Novel approach of microgrid control

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International Conference on Renewable Energy Research and Applications (ICRERA)

作者： Péter Stumpf István Nagy István Vajk Department of Automation and Applied Informatics Budapest University of Technology and Economics MTA-BME Control Engineering Research Group Budapest Hungary

A novel microgrid control is proposed in the paper. Independent control of active and reactive power for each unit connected to the common microgrid bus is realized in addition to the power sharing in the designed ratio among the units. The concepts of voltage droop and frequency droop applied widely are incorporated here as well. The price paid for the independent control is the reference frame transformation needed in the novel control.

关键词： Microgrids Voltage control Vectors Reactive power Power conversion Renewable energy sources

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Wind energy penetration into distributed generation and its static and dynamic features

Wind energy penetration into distributed generation and its ...

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International (EPE-PEMC) Power Electronics and Motion control Conference

作者： Peter Stumpf Rafael. K. Jardan Istvan Nagy Zoltan Varga Economics Department of Automation and Applied Informatics Budapest Budapest University of Technology Hungary MTA-BME Control Engineering Research Group Budapest

Wind Energy Conversion Systems (WECS) are penetrating into Microgrids as they fit well to the concept of Distributed Generation. The variable speed Doubly Fed Induction Generators (DFIG) are most frequently used. Changing the speed (DFIG) according to the aerodynamic law, maximum wind power can be harvested. The paper investigates the way of speed change by rotor voltage in steady-state and in transient. Steady state characteristics and simulation results for dynamic behavior are included.

关键词： Rotors Stators Generators Microgrids Wind turbines Wind energy Wind power generation

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