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International Conference on Environment and Electrical Engineering

作者： Radoslaw Pierzga Tomasz Boczar Faculty of Electrical Engineering Automatic Control and Computer Science Opole University of Technology

ISBN: (纸本)9781467330602

Operating wind turbines produce infrasound noise thus they act on the environment. This also applies to small wind turbines, which are located in the immediate vicinity of human settlements. Small wind turbines can be located close to buildings and mounted directly on their walls and roofs. In this case, it is important to determine the level of environmental impact of such type of installation. Measurement results of infrasound noise generated by a small vertical axis wind turbine (VAWT), rated power 1 kW, are presented in the paper. Analysis results of sound pressure level and dependence of signal spectra from different wind speeds are shown. In the analysis of sound pressure level the G weighing curve was used according to the ISO 7196:2002 standard and achieved results were referred to the limits contained in the current legislation, what allowed for evaluation of the infrasound noise impact of the turbine under study.

关键词： Infrasound emission Small wind turbine VAWT

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Analysis of infrasound noise emitted by high power wind turbine with asynchronous generator for selected resonant and median frequencies

Analysis of infrasound noise emitted by high power wind turb...

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International Conference on Environment and Electrical Engineering

作者： Tomasz Malec Tomasz Boczar Faculty of Electrical Engineering Automatic Control and Computer Science Opole University of Technology

ISBN: (纸本)9781467330602

The paper presents analysis results of sound pressure level of infrasound noise generated by brand new wind turbine from REPOWER type MM92, rated power 2 MW. As results the amplitude spectra of noise for three chosen wind speed values are presented. Additionally, distributions of the sound pressure level with dependence on wind speed for selected resonant and median frequency values are presented. For chosen frequencies linear regression analysis was performed and subjected for a detailed evaluation. Values obtained from measurement were referred to and compared with the limits specified in legislations existing in this area.

关键词： Component Wind turbine Infrasound noise Synchronous generator

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Force sensing and control during movement of the modular walking robot mero

Romanian Review Precision Mechanics, Optics and Mechatronics

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Romanian Review Precision Mechanics, Optics and Mechatronics 2013年第44期 60-67页

作者： Ion, Ion Alexandru, Marin Aurelian, Vasile Cornel, Dinu Grigore, Stamatescu Technology of Manufacturing Department Politehnica University of Bucharest Romania Hydraulics Department Politehnica University of Bucharest Romania Mechanism and Robot Theory Department Politehnica University of Bucharest Romania Aerospatial Department Politehnica University of Bucharest Romania Automatic Control and Industrial Informatics Department Politehnica University of Bucharest Romania

In the history of scientific research there are many examples of designing robotic devices like mechanical toys and anthropoid robots. Since long ago, many research teams worldwide have been focused on goals such as creating an autonomous walking robot equipped with functions like handling objects, locomotion, perceiving, navigation, learning, judgment, information storage and intelligent control, and that can carry out tasks like altering the multitude of the parts belonging to a dynamic universe. The last ten years a large number of vehicles have been developed for their mobility characteristics over irregular surfaces. The modular mechatronic mobile system MERO* (MEchanism RObot-*Pelecudi Ch ***.) by reconfiguring their architecture are built to displace the heavy loads on the irregular surfaces. The main characteristic of the modular modular mechatronic walking system is that they are able to move away on not arranged, horizontal and rough terrain. The modular mechatronic system protect much better the environment when its contact with the soil is discrete, a fact that limits appreciately he area that is crushed (fig.1). The modular mechatronic mobile system MERO may have a lower or higher autonomy degree. This autonomy has in view the power source’s supply capability but also orientation and perception capabilities as regards the terrain configuration, the robot is running upon and its decision making and the motion manner towards a target. Architect of the reference structure of walking robot has three two-legged modules. Every leg has three freedom degrees (RRR), a slip sensor and tactile sensor to measure the contact which consists of lower and upper levels. They are used to control the walking robot in the adaptability to a natural ground. The paper presents some aspects of sensing and motion control walking robots (the complex sliding phenomenon, moving them in terms under conditions) and stability displacement of the modular mechatronic system MERO. © 2

关键词： Decision making

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Analysis of infrasound noise emitted by high-power wind turbine with synchronous generator

Analysis of infrasound noise emitted by high-power wind turb...

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International Conference on Environment and Electrical Engineering

作者： Tomasz Malec Tomasz Boczar Faculty of Electrical Engineering Automatic Control and Computer Science Opole University of Technology

ISBN: (纸本)9781467330602

Analysis results of sound pressure level of infrasound noise generated by high-power wind turbine Vensys type 62, which is operated for five years with an electrical capacity of 1.2 MW, are presented in the paper. Frequency and time-frequency spectrograms calculated for recorded low-frequency signals with respect to all registered changes of electrical power generated and the number of rotor revolutions per minute are presented. All measured sound pressure levels have been evaluated with and without the use of G weighting curve, which have helped to determine the size of infrasound impact of turbines and to analyze the influence of regarded parameters on this impact range of changes. Values obtained from measurement were referred to and compared with the limits specified in legislations existing in this area.

关键词： Component: wind turbine Infrasound noise Synchronous generator

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Identification of a gas furnace process using WSDP model

Identification of a gas furnace process using WSDP model

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2nd International Conference on control, Automation and Information Sciences, ICCAIS 2013

作者： Truong, Nguyen-Vu Hiep, Nguyen Tran Institute of Applied Mechanics and Informatics Vietnam Academy of Science and Technology Viet Nam Department of Automatic Control Le Qui Don Technical University Hanoi Viet Nam

ISBN: (纸本)9781479905720

This paper presents the identification of a gas furnace process using the so called wavelet based State Dependent Parameter (WSDP) models. Here, each of the process' dominant dynamics are characterized by a state dependent parameter in form of wavelet which is able to provide valuable insight, and effective means to measure the system's degree of nonlinearity. To illustrate the advantages of the proposed modeling approach, the identified model is benchmarked with a few welknown reported results, i.e. fuzzy logic, generalised kernel and linear ARX models. © 2013 IEEE.

关键词： Gas furnaces

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Policy-based self-configuration of autonomous systems information inputs

Policy-based self-configuration of autonomous systems inform...

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IEEE International Workshop on Intelligent Data Acquisition and Advanced Computing Systems: technology and Applications

作者： Michal Podpora Aleksandra Kawala-Janik Mariusz Pelc Faculty of Electrical Engineering Automatic Control and Informaics Opole University of Technology Opole Poland University of Greenwich School of Computing and Mathe Matical Sciences London United Kingdom

In this paper the idea of Policy-based Input Selector, which is a framework of a highly flexible modular software interface was presented. The Policy-based Input Selector allows run-time context-sensitive and self-acting reconfiguration of information inputs in cognitive systems. The proposed solution has great application capability in autonomous and intelligent systems with multiple data inputs, such as - inter alia - vision, Laser Range Finders (LRF) or audio. Potential implementation of policies enables efficient context switching of information input and this was in detail presented and explained in this work.

关键词： Switches Hardware Mobile robots Data acquisition Sensors

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Towards a holistic approach for developing sensing enterprise modelling framework

Towards a holistic approach for developing sensing enterpris...

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7th IFAC Conference on Manufacturing Modelling, Management, and control, MIM 2013

作者： Danila, Cristian Stanescu, Aurelian Goncalves, Ricardo Agostinho, Carlos Florea, Adina Serbanescu, Cristina Department of Automatic Control and Industrial Informatics Faculty of Automatic Control and Computer Science University Politehnica of Bucharest CO 060042 Romania Departamento de Engenharia Electrotécnica Faculdade de Ciências e Tecnologia FCT Universidade Nova de Lisboa 2829-516 Caparica Portugal Centre of Technology and Systems CTS Uninova 2829-516 Caparica Portugal Department of Computer Science Faculty of Automatic Control and Computer Science University Politehnica of Bucharest CO 060042 Romania Department of Mathematics University Politehnica of Bucharest CO 060042 Romania

The integration of Web-Services, smart agents and "smart objects" enables enterprise innovation and competitiveness in a globalized economy. The paper proposes a multi view modelling framework that enables e... 详细信息

ISBN: (纸本)9783902823359

关键词： Web services

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Analysis of the vibroacoustic parameters of an energy power transformer without any damages and with defects simulated in the core

Analysis of the vibroacoustic parameters of an energy power ...

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41st International Congress and Exposition on Noise control Engineering 2012, INTER-NOISE 2012

作者： Borucki, Sebastian Cichoń, Andrzej Boczar, Tomasz Zmarzly, Dariusz Automatic Control and Informatics Institute of Electric Power Engineering Opole University of Technology ul. Proszkowska 76 45-758 Opole Poland

ISBN: (纸本)9781627485609

The subject matter of the paper refers to the assessment of the technical condition of a power transformer core based on vibroacoustic measurements taken during a regular operation. The results of the analysis of mechanical vibration parameters presented in the paper were obtained during experimental laboratory investigations on an actual lowvoltage transformer unit. The vibration measurements were taken with a specialized measuring apparatus by the company Brüel & Kjær - system Pulse Dyn-XI. During the experiment both load and supplying voltage of the unit diagnosed were changed. In order to show the changes of the vibroacoustic parameters determined, an attempt to simulate the core failure and to connect it with the obtained results of the acceleration rms value and vibration amplitude spectrum was made. The measurements and analysis of the vibrations measured were carried out in dependence on the transformer load and supplying voltage changes for the core without damage and with a simulated damage - a loosened core.

关键词： Power transformers

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Towards a holistic approach for Developing Sensing Enterprise Modelling Framework

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IFAC Proceedings Volumes 2013年第9期46卷 1304-1309页

作者： Cristian Danila Aurelian Stanescu Ricardo Goncalves Carlos Agostinho Adina Florea Cristina Serbanescu Department of Automatic Control and Industrial Informatics Faculty of Automatic Control and Computer Science University Politehnica of Bucharest CO 060042 Romania (Tel: *** Departamento de Engenharia Electrotécnica Faculdade de Ciěncias e Tecnologia FCT Universidade Nova de Lisboa 2829-516 Caparica Portugal Centre of Technology and Systems CTS Uninova 2829-516 Caparica Portugal Department of Computer Science Faculty of Automatic Control and Computer Science University Politehnica of Bucharest CO 060042 Deparment of Mathematics University Politehnica of Bucharest CO 060042

The integration of Web-Services, smart agents and “smart objects” enables enterprise innovation and competitiveness in a globalized economy. The paper proposes a multi view modelling framework that enables enterpris... 详细信息

关键词： Sensing Enterprise Modelling Framework context-aware smart objects

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Modeling Dynamic End Effects in Rotary Armature of Rotary-Linear Induction Motor

Modeling Dynamic End Effects in Rotary Armature of Rotary-Li...

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International Electric Machines & Drives Conference

作者： Ebrahim Amiri Mariusz Jagiela Oleksandr Dobzhanski Ernest Mendrela Department of Electrical and Computer Engineering Louisiana State University Baton Rouge LA USA Department of Electrical Engineering Automatic Control and Computer Science Opole University of Technology Opole Poland

The performance of twin-armature rotary-linear induction motor is presented in this paper. The stator consists of a rotary armature and linear armature placed aside one another. Both armatures have a common rotor which consists of solid iron cylinder covered with a thin copper layer. The rotor can move rotary, linearly or with helical motion. The linear motion generates dynamic end effect on both linear and rotary armature. Modeling such an effect in rotary armature is a significant challenge as it requires a solution considering motion with two degrees of mechanical freedom. The approach used to address linear motion on rotary armature is based on the combination of transient time-domain finite element model and frequency-domain slip frequency technique. The results obtained from finite element modeling are then verified by test carried out on experimental model of the motor what validates the proposed method.

关键词： Rotary-Linear motor dynamic end effect helical motion

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