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2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)最新文献

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A Comparative Study of Capacitive Couplers in Wireless Power Transfer 电容耦合器在无线电力传输中的比较研究
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742470
Mohammed K. Al-Saadi, Mustafa Al-Qaisi, L. Al-Bahrani, A. Al-Omari, A. Craciunescu
{"title":"A Comparative Study of Capacitive Couplers in Wireless Power Transfer","authors":"Mohammed K. Al-Saadi, Mustafa Al-Qaisi, L. Al-Bahrani, A. Al-Omari, A. Craciunescu","doi":"10.1109/ISFEE.2018.8742470","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742470","url":null,"abstract":"The capacitive power transfer (CPT) technology is mainly used in battery charging systems. The capacitive coupler plays a critical role in a CPT system. The capacitive coupler can be classified into two sections, unipolar and bipolar. The bipolar includes row and column couplers. This paper aims to analyse and compare the capacitive couplers. The plates dimension, plates spacing, and misalignment characteristics were analysed for each coupler. These parameters were considered as criteria to evaluate and compare the capacitive couplers in terms of investigation their effects on the coupling capacitance (Cm). All couplers were examined in a CPT system with a dual LCL compensation circuit topology. The voltage stress of the components, power density, electric field emissions, and safety distance were evaluated. The results showed that the most components in a CPT system of a unipolar coupler have the highest voltage stress among other couplers. This indicates that the CPT system with the unipolar coupler requires passive components with high VA ratings, and high insulation requirements are necessary. Likewise, it was found that the highest power density and lowest safety distance among the other couplers were achieved by the unipolar and column couplers, respectively.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124657974","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
Water and Heat Exposure Influence on Dielectric Response of LDPE-Al2O3 Nanocomposites 水和热暴露对LDPE-Al2O3纳米复合材料介电响应的影响
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742476
Florin Ciuprina, Laura Andrei
{"title":"Water and Heat Exposure Influence on Dielectric Response of LDPE-Al2O3 Nanocomposites","authors":"Florin Ciuprina, Laura Andrei","doi":"10.1109/ISFEE.2018.8742476","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742476","url":null,"abstract":"The influence of water and heat exposure on the dielectric response of LDPE-Al2O3 nanocomposites with 2wt% filler content was analyzed in this paper. The dielectric spectra of the real and imaginary permittivities, over a frequency range of 10 mHz – 1 MHz and for temperatures from 30 to 70°C, measured before any exposure, after one week immersion in deionized water and after one week thermal aging at 90°C are presented and discussed in this paper, analyzing the stability of the dielectric properties to the applied stresses","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128742596","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: 4
Records of Failures to Railroad Safety Installation 铁路安全装置故障记录
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742475
C. Drugarin, E. Spunei, C. Muscai, B. Protea, V. Năvrăpescu, I. Piroi
{"title":"Records of Failures to Railroad Safety Installation","authors":"C. Drugarin, E. Spunei, C. Muscai, B. Protea, V. Năvrăpescu, I. Piroi","doi":"10.1109/ISFEE.2018.8742475","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742475","url":null,"abstract":"To have a more comprehensive overview of failures to railroad traffic installations, the installations must be monitored permanently. In this work we propose a record software that allows a rapid identification of the train stations with the most failures, their causes, of the installations with the most number of failures, and so on. Based on the data shown by the software, coercive measures can be taken to improve the quality of the maintenance work, or to detect the weak components. The software we present in this work can be used at the (Romanian) national level and graphically shows the monitoring results.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128202727","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 Study of Performances in Lossless Data Compression for English and Romanian Text Files Using the Q-Coder Q-Coder对英语和罗马尼亚文本文件无损压缩性能的比较研究
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742466
R. Radescu
{"title":"Comparative Study of Performances in Lossless Data Compression for English and Romanian Text Files Using the Q-Coder","authors":"R. Radescu","doi":"10.1109/ISFEE.2018.8742466","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742466","url":null,"abstract":"In order to achieve the best and most relevant performance in the field of lossless data compression, but also in order to deepen and refine the results obtained by the type of data to which the compression and decompression operation is applied, this work focuses on compression using the Q-coder, which is a relatively new and less-used coder than the QM-coder, which largely uses the same principles, except that the QM -coder is better known, being mainly used in the JPEG standard. Based on coding and decoding principles using the Q-Coder, its compression performances are compared with other similar compression methods, techniques and algorithms by applying compression to text files in both English and Romanian languages but also on other types of data (images) that allow efficient storage of information in the memory of desktop, mobile or portable computing systems. The experimental results obtained for the compression performance differ significantly depending on the inner characteristics and statistical particularities of each studied natural language. The article interprets these comparative tests and highlights the subsequent differences in compression performance, providing useful conclusions and recommendations, which can be extended to texts from different other natural languages.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127534184","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
Printed Monopole Arrowhead Antenna Compared to Microstrip Rectangular Antenna on High Dielectric Constant Substrate 高介电常数基板上印刷单极箭头天线与微带矩形天线的比较
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742426
M. Banciu, Valentin Ion, L. Nedelcu, D. C. Geambasu, L. Trupina, Cristina Besleaga-Stan, N. Scarisoreanu
{"title":"Printed Monopole Arrowhead Antenna Compared to Microstrip Rectangular Antenna on High Dielectric Constant Substrate","authors":"M. Banciu, Valentin Ion, L. Nedelcu, D. C. Geambasu, L. Trupina, Cristina Besleaga-Stan, N. Scarisoreanu","doi":"10.1109/ISFEE.2018.8742426","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742426","url":null,"abstract":"A microstrip and a printed monopole antenna were designed for 5.8 GHz frequency band on the same 0.5 mm thick high dielectric constant substrate. For printed monopole antenna, a new arrowhead antenna is proposed. The arrowhead monopole antenna exhibit a 2.75 GHz impedance bandwidth, much larger than the 30 MHz bandwidth of the microstrip rectangular antenna. However, the antenna patterns show that the arrowhead monopole antenna exhibit lower directivity than the rectangular microstrip antenna.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127760254","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
Wireless Sensors Network based on Real-time Healthcare Monitoring 基于实时医疗监控的无线传感器网络
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742430
Iuliana Marin, Zainab Abbas Jabber
{"title":"Wireless Sensors Network based on Real-time Healthcare Monitoring","authors":"Iuliana Marin, Zainab Abbas Jabber","doi":"10.1109/ISFEE.2018.8742430","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742430","url":null,"abstract":"Healthcare surveillance systems based on the wireless sensors network have developed a large scale increase in the recent years. These systems are more important to human life and provide the appropriate techniques to be applied. The proposed healthcare monitoring system is designed based on the wireless sensors network. The system senses and displays the electrocardiogram, blood oxygen saturation, heart rate, and patient temperature in real-time. Vital indicators are extracted from the patient's body by sensors. In case of a critical situation, the vital signs are sent to a specialist doctor.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"56 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131489662","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
Half-split Dielectric Resonator Antennas Using High-Dielectric Permittivity Barium Neodymium Titanate 高介电常数钛酸钡钕半分裂介质谐振器天线
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742486
M. Banciu, N. Militaru, L. Nedelcu, D. C. Geambasu, L. Trupina, O. Avadanei
{"title":"Half-split Dielectric Resonator Antennas Using High-Dielectric Permittivity Barium Neodymium Titanate","authors":"M. Banciu, N. Militaru, L. Nedelcu, D. C. Geambasu, L. Trupina, O. Avadanei","doi":"10.1109/ISFEE.2018.8742486","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742486","url":null,"abstract":"Barium neodymium titanate material was manufactured by using solid-state reaction technique. Two types of microstrip fed antennas using half-split cylindrical resonators of barium neodymium titanate are proposed. New methods for coupling modes are investigated in order to increase the impedance bandwidth. For the 2.4 GHz band antenna, a 174 MHz impedance bandwidth was obtained, which is a very good value for a resonator of dielectric constant greater than 84. Due to the high dielectric constant, the volume of the used resonator is less than a sixth of previously reported dielectric resonator, which makes the antennas more compact and cost-effective.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"258 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122468452","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
Smart metering deployment status across EU-28 智能电表在欧盟28国的部署情况
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742468
Otilia Bularca, M. Florea, A. Dumitrescu
{"title":"Smart metering deployment status across EU-28","authors":"Otilia Bularca, M. Florea, A. Dumitrescu","doi":"10.1109/ISFEE.2018.8742468","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742468","url":null,"abstract":"The scope of this paper is to present an EU-28 overview of the smart meter roll-out implementation progress. The study is based on publicly available information and presents a traffic light map with the deployment status by mid-2017. A series of particular cases are approached and a gap between the European Commission recommendation, expected diffusion rate and actual deployment is identified. The study further provides some possible causes considering the number of metering points available at EU-28 level, country specific assumed targets and macro-environmental factors.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115972089","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: 4
Improved Fault Ride-Through Strategy for DWIG in Wind Power Systems 风电系统DWIG故障穿越改进策略
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742464
M. Ayad, J. A. Barrado-Rodrigo, H. Valderrama-Blavi, S. Garcia-Rios
{"title":"Improved Fault Ride-Through Strategy for DWIG in Wind Power Systems","authors":"M. Ayad, J. A. Barrado-Rodrigo, H. Valderrama-Blavi, S. Garcia-Rios","doi":"10.1109/ISFEE.2018.8742464","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742464","url":null,"abstract":"This paper proposes a complementary system for Dual Stator Winding Induction Generator (DWIG) in Wind Power Applications. This additional system improves the Low- Voltage Ride-Through capability of this kind of generator. This paper introduces a technique to avoid the overrating current, assuring the protection of the Control-Winding Side Converter, by means of adding a dynamic crowbar to the wind power system. In addition, the solution presented here can be used also to regulate the power in a hybrid micro-grid, with both DC, and AC distribution, increasing also its ride-through capability. Therefore, the proposed strategy helps to integrate the microgrid components, sources and loads, in the electrical grid.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115151094","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
A Two-Stage Optimization Approach to Suppression of Side Lobe and Sideband Levels in Time-Modulated Linear Arrays 一种抑制时调制线性阵列旁瓣和边带电平的两阶段优化方法
2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE) Pub Date : 2018-11-01 DOI: 10.1109/ISFEE.2018.8742483
U. Yesilyurt, I. Kanbaz, E. Aksoy
{"title":"A Two-Stage Optimization Approach to Suppression of Side Lobe and Sideband Levels in Time-Modulated Linear Arrays","authors":"U. Yesilyurt, I. Kanbaz, E. Aksoy","doi":"10.1109/ISFEE.2018.8742483","DOIUrl":"https://doi.org/10.1109/ISFEE.2018.8742483","url":null,"abstract":"Time modulated arrays (TMA) suffer from relatively low efficiencies due to radiations at different harmonics (sidebands) of modulation frequency in addition to main frequency. In order to increase this efficiency, optimization algorithms are usually used, but the performance and solution time of the optimizations must be studied. In this study, the two-stage optimization method is proposed for suppressing sidelobe level (SLL) and switching-induced sideband levels (SBL) in the time-modulated linear antenna array. It is shown through a sample scenario that the proposed method gives more effective results than the classical optimization approach.","PeriodicalId":253583,"journal":{"name":"2018 International Symposium on Fundamentals of Electrical Engineering (ISFEE)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123136865","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
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