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2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)最新文献

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Use of surface response methodology for the fuel cells mathematical modelling 利用表面响应方法对燃料电池进行数学建模
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-06-25 DOI: 10.1109/ATEE.2015.7133912
V. Olteanu, L. Pătularu, G. Ciumbulea, A. Craciunescu
{"title":"Use of surface response methodology for the fuel cells mathematical modelling","authors":"V. Olteanu, L. Pătularu, G. Ciumbulea, A. Craciunescu","doi":"10.1109/ATEE.2015.7133912","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133912","url":null,"abstract":"The objective of this work was to use Box - Wilson experimental plan to establish the relation between a dependent variables P (the delivered power) and three independent variables X1 (current density), X2 (air pressure) and X3 (air stoichiometry) in order to obtain the optimal values of the independent variables which give the maximum values of the fuel cell electric delivered power. The development of a PEM Fuel Cells mathematical model based on the design of experiment and surface response methodologies are described.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116875791","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
Design of a current sensor based on optical fibers 基于光纤的电流传感器设计
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-06-25 DOI: 10.1109/ATEE.2015.7133948
M. Stanciu, O. Ghita, A. Vintea, Sabina Potlog
{"title":"Design of a current sensor based on optical fibers","authors":"M. Stanciu, O. Ghita, A. Vintea, Sabina Potlog","doi":"10.1109/ATEE.2015.7133948","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133948","url":null,"abstract":"This paper present the design of a current sensor based on Faraday Effect using optical fibers devices and a polarizing beam splitter (PBS). Two different schematics are to be taken into account, for high currents and for smaller ones. A single polarized laser signal is sent to the PBS prism and two angular components are separated. From here, these optical signals are processed using some interfaces, a NI-DAQ acquisition board and a LabVIEW interface. After calculations, the unknown current is obtained function of the reflexion angle between the two light components.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121270626","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
Computer network vulnerabilities and monitoring 计算机网络漏洞与监控
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133678
A. Badea, V. Croitoru, Daniel Gheorghica
{"title":"Computer network vulnerabilities and monitoring","authors":"A. Badea, V. Croitoru, Daniel Gheorghica","doi":"10.1109/ATEE.2015.7133678","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133678","url":null,"abstract":"This paper presents an overview of the current computer network vulnerabilities and exploits, possibilities of monitoring the network traffic, by intercepting and duplicating it, ways of analyzing the monitored traffic in order to better understand and explain the detection of user's behavior.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125213366","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: 3
Implementation of SVM-based Direct Thrust Control of two-phase permanent magnet tubular synchronous actuators 基于svm的两相永磁管状同步执行器直接推力控制的实现
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133771
Ioana-Cornelia Gros, M. Radulescu, P. Teodosescu, C. Marginean
{"title":"Implementation of SVM-based Direct Thrust Control of two-phase permanent magnet tubular synchronous actuators","authors":"Ioana-Cornelia Gros, M. Radulescu, P. Teodosescu, C. Marginean","doi":"10.1109/ATEE.2015.7133771","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133771","url":null,"abstract":"Direct Thrust Control (DTC) methodology for linear motors has already reached the popularity of the classical Direct Torque Control for rotating machines, both, with good application in permanent-magnet synchronous configurations, and pointing to the improvement of the dynamic performances. This research paper presents a comprehensive theoretical and practical analysis of the implementation of a DTC scheme for a two-phase permanent-magnet tubular actuator (PMTSA) in addition with a Space Vector Modulation (SVM) technique suited for H-bridge inverter topology. The aim is to uphold the advantages of the classical control methodology, i.e. the dynamic behaviour and implementation simplicity, and to overcome the limitation regarding the disturbances of the responses; the simulation results of the implemented scheme validate the effectiveness of the proposed control scheme for two-phase topologies of PMTAs.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121089128","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
Comparative analysis of a dc to dc boost converter with constant and variable duty cycle 恒占空比和变占空比直流升压变换器的比较分析
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133894
J. Corcau, L. Dinca, Eduard Ureche
{"title":"Comparative analysis of a dc to dc boost converter with constant and variable duty cycle","authors":"J. Corcau, L. Dinca, Eduard Ureche","doi":"10.1109/ATEE.2015.7133894","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133894","url":null,"abstract":"In order to use dc to dc boost converter in combination with a fuel cell, for modern aircraft APU, it is important that the input current ripples to be very small. This paper presents a comparative analysis of a dc to dc boost converter with variable duty cycle and one with constant duty cycle. The Dc to dc boost converter proposed was modeled in Multisim, with a PID controller. After numerical simulations it was found that input current ripples have a maximum output current of approximately 20A. The variation is more flat when operating with constant duty cycle. The use of this controller that changes the duty cycle also leads to a greater variation of ripples in relation with the output current. Thus, to make a comparison with theoretical results, which were achieved in the bibliography, numerical simulations were made with the PWM pulse at a constant value, with 50% duty cycle. Based on simulation results there were plotted the boost converter output characteristics for the two cases. Graphs were performed in Matlab. Besides these output characteristics, there were also plotted the output and input current variation, the current through the transistor, the ripples for the output voltage and for the input current in relation with the output current.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126959740","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
Some aspects of the cogging torque study of a permanent magnet synchronous motor to drive a bicycle 永磁同步电机驱动自行车齿槽转矩的若干方面研究
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133943
Nicolae Digă, C. Ghita, S. Digă, Dorinel Constantin, C. Stoica
{"title":"Some aspects of the cogging torque study of a permanent magnet synchronous motor to drive a bicycle","authors":"Nicolae Digă, C. Ghita, S. Digă, Dorinel Constantin, C. Stoica","doi":"10.1109/ATEE.2015.7133943","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133943","url":null,"abstract":"In this paper the authors present an analysis of the influence of different geometrical dimensions of the cross section of a permanent magnet synchronous motor to drive a bicycle on the size of its cogging torque. Thus are modified the stator slots isthmus width, the stator slots isthmus height, the stator teeth width (keeping slot pitch) and the width of the permanent magnet rotor (keeping the same mass of magnets and magnetic rotor yoke width). In order to achieve these objectives, is computed for each case, the inducer magnetic flux density of the motor by the 2D finite element method and the values of cogging torque in each of the considered cases.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122505171","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: 2
Mathematical modeling of the erosion processes in hydrographic basins 水文盆地侵蚀过程的数学模拟
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133868
S. Ion, D. Marinescu, S. Cruceanu
{"title":"Mathematical modeling of the erosion processes in hydrographic basins","authors":"S. Ion, D. Marinescu, S. Cruceanu","doi":"10.1109/ATEE.2015.7133868","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133868","url":null,"abstract":"The erosion is a complex process determined by many physical, chemical, biological factors, affects the environment in a number of ways, and has a significant impact on the conservation and exploitation of natural resources, as well as on the quality of life. Due to its complexity, it is crucial to build a good erosion model in accordance with the envisaged main effects. The most determinant factors in the soil erosion - the process we focus in this article - are water dynamics, soil particle cohesion, and the cover plant presence. Our study focuses on the topography influence on water dynamics, the interactions plant cover - water flow, soil particle detachment - plant cover. We also analyze the model sensitivity to the variation of some soil parameters.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"385 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122877731","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
Strain measurements by cardiac ultrasound using an original Matlab software 利用Matlab软件进行心脏超声应变测量
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133785
Maria Batrinache
{"title":"Strain measurements by cardiac ultrasound using an original Matlab software","authors":"Maria Batrinache","doi":"10.1109/ATEE.2015.7133785","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133785","url":null,"abstract":"The most accurate methods that determine quantitative information able to enhance the precision of procedures of identifying a disease are invasive, or induce discomfort to the patient. Many research groups are studying the possibility of introducing new non-invasive methods with which a diagnosis can be made more precise. This paper presents one method that can be used to determine the strain of an inner body organ, based on echography analysis. Quantifying the deformation can help to determine the extent of the disease for patients suffering from cardiac abnormalities, when the heart muscle changes its volume and degree of elasticity.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129721645","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
Modeling and monitoring aspects concerning the vector controlled reluctance synchronous motor drives 矢量控制磁阻同步电机驱动的建模与监测
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133763
S. Enache, A. Câmpeanu, I. Vlad, M. Enache
{"title":"Modeling and monitoring aspects concerning the vector controlled reluctance synchronous motor drives","authors":"S. Enache, A. Câmpeanu, I. Vlad, M. Enache","doi":"10.1109/ATEE.2015.7133763","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133763","url":null,"abstract":"This paper presents details regarding a possibility of modelling (in Simulink) and monitoring a driving system with reluctance synchronous motor (RSM) with vector control. In this purpose there are presented the mathematical model of the motor, the structure of the driving system and the model of the converter. It is insisted to detail the blocks of coordinates transformations and the blocks of phase transformations. With the help of this program there have been obtained simulations detailed in a special paragraph. The paper also presents a data acquisition system for monitoring the current and the speed of the driving system we analyze. Time-dependence of these quantities confirm the conclusions validity by simulation. The paper ends with conclusions resulted from the analysis of the simulations and with references.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129813922","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: 2
The influence of parameters on the parasitic capacitance values in a planar transformer 参数对平面变压器寄生电容值的影响
2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133942
C. Hebedean, C. Munteanu, A. Racasan, C. Pacurar, D. Augustin
{"title":"The influence of parameters on the parasitic capacitance values in a planar transformer","authors":"C. Hebedean, C. Munteanu, A. Racasan, C. Pacurar, D. Augustin","doi":"10.1109/ATEE.2015.7133942","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133942","url":null,"abstract":"Planar transformers are mainly used in power electronics but they can be also found in electric vehicles, medical applications, power sources, rectifiers and other devices. They have a lot of advantages like low profile, which leads to low core losses, higher efficiency, manufacturing repeatability, and reduced electromagnetic interferences. On the other side, there are a few aspects which must be improved like decreasing the parasitic capacitance between the windings and decreasing the losses in the structure. This paper focuses on the parasitic capacitance decrease in a planar transformer based on the constructive parameters variation.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128806770","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: 3
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