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2019 International Conference on Electromechanical and Energy Systems (SIELMEN)最新文献

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On the Electromagnetique Torque Expresion of an Induction Machine Asymmetrical Supplied 非对称供电异步电机的电磁转矩表达式
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905885
Livia Cociu, V. Cociu
{"title":"On the Electromagnetique Torque Expresion of an Induction Machine Asymmetrical Supplied","authors":"Livia Cociu, V. Cociu","doi":"10.1109/SIELMEN.2019.8905885","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905885","url":null,"abstract":"If a symmetrical induction machine operates on an asymmetrical voltage system an asymmetrical system quantities (voltages, currents, fluxes) occurs. The same thing happens if the power supply is symmetrical but the induction machine is asymmetrical, either by construction or by fault. The currents and fluxes hodograph is no longer circular but elliptical. As the final result of the electromagnetic phenomena the torque developed by the induction machine is affected. Even in steady state the electromagnetic torque is no longer constant. A ripple i.e. an alternative component overlaps its average value. The paper aims to determine a usable analytical expression that clearly indicates the causes that influence the value of the sinusoidal component of the torque: the asymmetric supply or the failure of the induction machine.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125165297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Blended Teaching and Learning Solutions for Electrical Engineering Study Programs 电气工程研究项目的混合式教学解决方案
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905868
A. Adăscăliței, S. Arădoaiei
{"title":"Blended Teaching and Learning Solutions for Electrical Engineering Study Programs","authors":"A. Adăscăliței, S. Arădoaiei","doi":"10.1109/SIELMEN.2019.8905868","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905868","url":null,"abstract":"The article presents a review of current epedagogical methods of designing study programs for education in the field of electric and computers engineering Using Blended Learning Resources. OER (Open Educational Resources) and MOOC (Massive Open Online Courses), Virtual Learning Environments (VLEs) are discussed. Experimental engineering skills and abilities can be developed by using remote labs and simulations. The development of critical thinking of engineer students takes place while students work with virtual resources, and students need to understand what kind of results they get for each experiment. Even if it addresses the same problems-by differentiating the simulation laboratories-it focuses on another field: not the ability to do this, but how you can do it. Online laboratories are also fundamental to the experiments the student performs in the individual study because they are specially designed for distance students who need to gain an introductory knowledge and familiarity with real-life phenomena. The instructional design model is based on the ADDIE model, which includes the phases of analysis, design, development, implementation, and evaluation. VLEs are used to make online interactions between Students and Teachers. Moodle (Modular Object-Oriented Dynamic Learning Environment) is known as an online course management system (CMS). Learning Process and Content Management Systems (LCMS), in this case, Moodle (an open source software platform for e-learning), provides instructors with the tools to create e-learning or Blended Teaching and Learning (BTL) course. The article provides resources and information to help educators, administrators, and decision-makers better apply ITC in Engineering Education (EE) programs. The resources were analyzed by the Faculty of Electrical Engineering (“Gh. Asachi” Technical University from Iaşi, Romania) with extensive experience in integrating ICT (information and communication technology) in the training programs of engineering teachers.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122526541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Improving the Luminance Measurement from Digital Images 改进数字图像亮度测量
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905887
C. Galatanu
{"title":"Improving the Luminance Measurement from Digital Images","authors":"C. Galatanu","doi":"10.1109/SIELMEN.2019.8905887","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905887","url":null,"abstract":"The paper is based on a critical approach for luminance measurement, based on Exposure Value. Even though the field of imaging measurements has made a lot of progress, recent works shows that there are still things that are not well understood, some even wrong, such as the significance of Exposure Value for extracting luminance values. There are things in the literature that are confirmed, but the existence of any misinterpretation can be an obstacle to the extension of this means of luminance measurement. The extension of the luminance measurement is important for the lighting engineering, for energy saving and light pollution reduction, but also to understand in a better manner the visual environment.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132710962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Using the Short Circuit Analysis in the Study of the Induction Machine Disconnection from the Grid 用短路分析方法研究感应电机离网故障
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905889
Livia Cociu
{"title":"Using the Short Circuit Analysis in the Study of the Induction Machine Disconnection from the Grid","authors":"Livia Cociu","doi":"10.1109/SIELMEN.2019.8905889","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905889","url":null,"abstract":"This paper presents a method to study the disconnecting from the power grid transient of an induction machine. It is assumed that a three-phase load is connected to the same grid. Considering the parameters of the load impedance included in the stator equivalent circuit, in case of disconnection from the grid the problem is reduced to studying the transformed induction machine under short circuit. In this paper, the transient stator currents of the induction machine compared to those of transformed machine have been studied. In order to simplify the problem, the rotor speed is assumed to be constant at synchronous speed all over the time interval of interest. The analysis has been performed by simulation. The obtained results were compared to the theoretical ones. Finally the natural components and their characteristic parameters have been presented. Conclusions regarding the nature and the duration of the transient operation have been drawn.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133040982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PC-Based Temperature and Humidity Recorder with USB Connectivity 基于pc的温度和湿度记录仪与USB连接
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905835
E. Lunca, S. Vornicu, C. Damian
{"title":"PC-Based Temperature and Humidity Recorder with USB Connectivity","authors":"E. Lunca, S. Vornicu, C. Damian","doi":"10.1109/SIELMEN.2019.8905835","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905835","url":null,"abstract":"In this paper, a PC-based temperature and humidity recorder with USB connectivity is presented. It is developed around a well-known 8-bit PIC18F4550 microcontroller from Microchip Technologies and features intuitive application software developed in the LabVIEW graphical programming environment. The recorder has a temperature range of 0°C to 60°C, a humidity range of 10% RH to 95% RH and a maximum display rate of 1 s. The instrument is compatible with Windows 7/Vista/XP and connects to the PC via a simple USB cable. The device is mainly intended for indoor environmental monitoring.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123214239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Study of an Electric ATV by Removing the Thermal Engine 取消热机的电动全地形车的研究
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905858
F. Rusu, G. Livint, Cosmin Pintilie
{"title":"Study of an Electric ATV by Removing the Thermal Engine","authors":"F. Rusu, G. Livint, Cosmin Pintilie","doi":"10.1109/SIELMEN.2019.8905858","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905858","url":null,"abstract":"This paper describes the control of an electric vehicle (all-terrain vehicle) which has been obtained by modifying a normal thermic one. The main purpose of this paper is to study performances of an electric vehicle by taking in considerations aspect like temperature variations inside of the Lithium-ion battery pack, electric motor characteristics and the efficiency of electric energy. Considering that an ATV will have in several moments’ suddenly accelerations/decelerations, electrical and thermic characteristics of a lithium-ion battery in different operation conditions are important to be detailed in order to design a battery management system. Also in this paper it will be presented how a thermic motor of 125cmc, 9 HP, was replaced with a 36V, 1000W, brushless motor. The study will bring into discussions aspects like autonomy of the vehicle, energy consumption and will be presented all the benefits obtain from an electric vehicle and green energy.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125657239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Cold Plasma Treatment Influence on Aqueous Solution Related to the Electrical Parameters of the Power Supply 冷等离子体处理对水溶液的影响与电源电参数有关
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905791
Lungu Cristian Victor, Hnatiuc Bogdan
{"title":"Cold Plasma Treatment Influence on Aqueous Solution Related to the Electrical Parameters of the Power Supply","authors":"Lungu Cristian Victor, Hnatiuc Bogdan","doi":"10.1109/SIELMEN.2019.8905791","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905791","url":null,"abstract":"The use of electric discharges from laboratory power supplies has increased more and more especially in the field of modern medicine. As the requirements of the plasma treatment increase, so do the complexity of the power supplies. At first the power supply used was the network connected to primary winding of a high voltage transformer, now the new trends are specialized power supplies for specific reactor types in order to both optimize the energy of the power supply and to homogenize the plasma treatment. This paper aims to show the Redox potential of the distilled water after plasma treatment and the time evolution of the electric current and the discharge resistance by using three reactor types connected to a few power supplies both AC and pulsed at different frequencies.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129403443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental Study of Some Composite Materials Characteristics 几种复合材料特性的实验研究
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905899
M. Ardeleanu, D. Stănescu, V. Adam, A. Scornea, Ile Mihalcea
{"title":"Experimental Study of Some Composite Materials Characteristics","authors":"M. Ardeleanu, D. Stănescu, V. Adam, A. Scornea, Ile Mihalcea","doi":"10.1109/SIELMEN.2019.8905899","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905899","url":null,"abstract":"Composite materials are cutting edge materials designed to achieve use function,chemical, physical, mechanical, electrical, magnetic, thermal properties of the highest quality. Because of this, they have a wide use in various domains such as shipbuilding, automotive industry, aeronautics, sports equipment, electrical engineering and electronics, architectural design etc. This paper proposes the presentation of experimental results regarding the burning behavior and voltage impulses for some composite materials (Fireproof polypropylene, compact Polycarbonate, Polymetyl metacrylate-PMMA Plazcast) which have a wide use in architectural (interior or exterior) designs. Experimental determinations were made with high performance equipment (Fribourg Glow Wire Tester model 4150 and HILO TEST IPG 2025) owned by the specialized laboratories of the National Institute for Research and Development and Testing in Electrical Engineering (ICMET -Craiova). The results showed that the tested materials behaved well and comply with the international standards.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131097470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of PWM Strategies for Three Level Inverters 三电平逆变器PWM策略的比较
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905789
S. Ivanov, L. Mandache, V. Ivanov, A. Radu, M. Roman, R. Prejbeanu
{"title":"Comparison of PWM Strategies for Three Level Inverters","authors":"S. Ivanov, L. Mandache, V. Ivanov, A. Radu, M. Roman, R. Prejbeanu","doi":"10.1109/SIELMEN.2019.8905789","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905789","url":null,"abstract":"In this paper four PWM strategies for three level inverters are compared by simulation. The strategies differ by the waveform of the carries with offset for three of them. For the fourth the carriers are considered phase shifted. The comparison is performed taking into account the total distortion factor and the maximum value of the fundamental. Investigations are performed depending on the amplitude modulation factor.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127681261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Installing PV Panels on a University Building: Comparison Between Two Different Climates 在大学建筑上安装光伏板:两种不同气候的比较
2019 International Conference on Electromechanical and Energy Systems (SIELMEN) Pub Date : 2019-10-01 DOI: 10.1109/SIELMEN.2019.8905832
M. A. B. Hacene, D. Lucache
{"title":"Installing PV Panels on a University Building: Comparison Between Two Different Climates","authors":"M. A. B. Hacene, D. Lucache","doi":"10.1109/SIELMEN.2019.8905832","DOIUrl":"https://doi.org/10.1109/SIELMEN.2019.8905832","url":null,"abstract":"The paper applies the same case study in two different countries, Romania and Algeria, with two different climates. The investigation of installing PV panels on the same university building was conducted by simulation using the PVsyst software, with the assumption that the photovoltaic panels have to cover the whole energy needs of the sample building. The simulation results in the two climates are compared and discussed from two points of view, energy production and economic benefit.","PeriodicalId":129030,"journal":{"name":"2019 International Conference on Electromechanical and Energy Systems (SIELMEN)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125122646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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