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2017 XXVI International Scientific Conference Electronics (ET)最新文献

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Energy performance modeling of a stand-alone PV system using real meteorological data 使用真实气象数据的独立光伏系统能源性能建模
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124330
S. Zahariev, K. Kirilov, M. Alexandrova
{"title":"Energy performance modeling of a stand-alone PV system using real meteorological data","authors":"S. Zahariev, K. Kirilov, M. Alexandrova","doi":"10.1109/ET.2017.8124330","DOIUrl":"https://doi.org/10.1109/ET.2017.8124330","url":null,"abstract":"The paper evaluates energy performance of stand-alone PV systems. The main parameters of the system are obtained by proper models based on real meteorological data. Recommendations are derived for stand-alone PV-systems with boost charge controller based on the performance evaluation. MATLAB Simulink models are developed and long period operation is simulated for PV-systems with common MPPT algorithms and without MPPT. The annual increase of the energy output of the system was found to be 19%, if a MPPT algorithm is implemented. The derived guidelines and results can be further used for the decision-making process of PV-standalone system development.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131789164","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
IoT-based wireless induction motor monitoring 基于物联网的无线感应电机监测
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124386
Mehmet Şen, Basri Kul
{"title":"IoT-based wireless induction motor monitoring","authors":"Mehmet Şen, Basri Kul","doi":"10.1109/ET.2017.8124386","DOIUrl":"https://doi.org/10.1109/ET.2017.8124386","url":null,"abstract":"In this study, a factory induction motor (IM) was monitored with wireless TCP/IP protocol in order to detect and predict deviations from normal operating parameters before the occurrence of motor failure. In this way, the production process is not impeded and the required maintenance or replacement can be performed with the least possible disruption. In this study, the motor cycle, the current drawn by the motor and the motor voltage were read by the Hall-effect current sensor and the required power consumption was calculated. With this aim, the designed architecture read the accepted parameters of the motor and reported them to the central management software. The central management software operating in real time was then able to assemble these parameters and form predictive maintenance models.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133610779","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: 30
Frequency compensation in a two-integrator loop Gm-C biquad when realized with single stage OTAs 单级ota实现双积分器Gm-C双回路的频率补偿
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124399
I. Uzunov, Boncho Nikov, S. Ouzounov, M. Hristov
{"title":"Frequency compensation in a two-integrator loop Gm-C biquad when realized with single stage OTAs","authors":"I. Uzunov, Boncho Nikov, S. Ouzounov, M. Hristov","doi":"10.1109/ET.2017.8124399","DOIUrl":"https://doi.org/10.1109/ET.2017.8124399","url":null,"abstract":"The paper considers the design of a two-integrator loop Gm-C second order filter, realized by single stage operational transconductance amplifiers (OTA). Two major problems are discussed: equalizing the maxima of OTA input voltages and unfavorable effect of OTA input capacitances. It is shown OTA input capacitances cause increasing of pole Q-factor and may turn the circuit to unstable. A method for avoiding of this problem is proposed, which could be applied for the other circuits of this class.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124270714","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
Micro and nanogrid active power management under stand alone and grid connected operation 微、纳米电网有源电源管理理解独立运行和并网运行
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124389
R. Stanev, T. Asenov, Gergana Vacheva
{"title":"Micro and nanogrid active power management under stand alone and grid connected operation","authors":"R. Stanev, T. Asenov, Gergana Vacheva","doi":"10.1109/ET.2017.8124389","DOIUrl":"https://doi.org/10.1109/ET.2017.8124389","url":null,"abstract":"This paper presents test evaluation and experimental results from the implementation of the approach for smart active power management in micro and nanogrids given in [1–4] under island and grid-connected mode. A new power electronic smart load controller for improving the power system stability and active power management is proposed and realized. The controller interaction is tested in a \"power hardware in the loop\" test performed at the Power System Stability Laboratory of TU-Sofia. The analysis of the results proves the functionality of the proposed concept and hardware realization. The approach offers cost effective solution to the main issues related to normal and stable micro and nanogrid operation.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128776034","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: 6
Comparative loss analysis of boost and synchronous boost DC-DC converters 升压和同步升压DC-DC变换器的损耗比较分析
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124347
N. Hinov, Dimitar D. Arnaudov, V. Valchev, S. Vuchev
{"title":"Comparative loss analysis of boost and synchronous boost DC-DC converters","authors":"N. Hinov, Dimitar D. Arnaudov, V. Valchev, S. Vuchev","doi":"10.1109/ET.2017.8124347","DOIUrl":"https://doi.org/10.1109/ET.2017.8124347","url":null,"abstract":"The following paperwork presents a comparative analysis of synchronous and non-synchronous boost converters. Analytical determination of the losses is derived and compared with the results of the simulations. The compared converters are realized and investigated experimentally. Thermographic images are used to analyze the dissipated losses in the two converters and each of their components. A methodology for magnetic components loss calculations is proposed targeting loss optimization.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123263200","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
System for multi-frequency capacitance-voltage characterization 多频电容电压表征系统
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124373
G. Nikolov, I. Ruskova, E. Gieva, B. Nikolova
{"title":"System for multi-frequency capacitance-voltage characterization","authors":"G. Nikolov, I. Ruskova, E. Gieva, B. Nikolova","doi":"10.1109/ET.2017.8124373","DOIUrl":"https://doi.org/10.1109/ET.2017.8124373","url":null,"abstract":"Capacitance measurement at different DC voltage levels, different signal amplitudes and different frequencies, finds extensive application to qualify semiconductor and multiple-layered structures. Generally, the cost of such type instrumentation is in range of several thousand dollars and they are not very popular in the market. In present paper an approach of combining conventional measuring instruments and high-level programming environment is suggested in order to achieve system with complete functionalities for capacitance measurements.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125724842","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
Design of strain gauge anemometer for work in antarctic conditions 南极条件下应变式风速计的设计
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124351
D. Iliev, M. Mitev, V. Gourev
{"title":"Design of strain gauge anemometer for work in antarctic conditions","authors":"D. Iliev, M. Mitev, V. Gourev","doi":"10.1109/ET.2017.8124351","DOIUrl":"https://doi.org/10.1109/ET.2017.8124351","url":null,"abstract":"This paper describes the design of anemometric device based on strain gauge sensors. The device relies on an ultra-low power micro architecture and adaptive power distribution mechanism. It is dynamically reconfigurable for working in real time transfer slave mode; and ultra-low power, fully autonomous, self-monitoring, long-term measurement mode. For convenience the collected data of the environmental parameters could be initially analyzed and visualized by specialized master system and end-user software tools.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121529610","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
Jncreasing of the number of the controllable axes using TDM mode of SPORT interface between DSP and FPGA 利用DSP和FPGA之间的SPORT接口的TDM模式增加可控轴的数量
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124378
B. B. Petrov, I. Gochev
{"title":"Jncreasing of the number of the controllable axes using TDM mode of SPORT interface between DSP and FPGA","authors":"B. B. Petrov, I. Gochev","doi":"10.1109/ET.2017.8124378","DOIUrl":"https://doi.org/10.1109/ET.2017.8124378","url":null,"abstract":"The most of known technical solutions for multi-axis control are based on single processor architecture for particular number of axes according of the limited number of embedded PWM channels. The method of increasing of this number by using FPGA support of PWM and waveform generations is described in this paper. The interface between DSP processor-calculator and FPGA based PWM-generator are made by using of TDM mode of SPORT interface ordinary used only for audio applications.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134006449","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
Kinetics of reanodization of porous anodic oxide films on aluminium formed in pore-forming solutions of various acids 在不同酸的成孔溶液中形成的铝表面多孔阳极氧化膜的再阳极化动力学
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124412
A. Zahariev, B. Tzaneva, C. Girginov, S. Andreev
{"title":"Kinetics of reanodization of porous anodic oxide films on aluminium formed in pore-forming solutions of various acids","authors":"A. Zahariev, B. Tzaneva, C. Girginov, S. Andreev","doi":"10.1109/ET.2017.8124412","DOIUrl":"https://doi.org/10.1109/ET.2017.8124412","url":null,"abstract":"Investigations are carried out towards reanodization of porous anodic oxide films on aluminium formed in aqueous solutions of sulphuric, oxalic and chromic acid. These films are prepared in a way to have one and the same porosity. It is found out that in case of equal porosity the slopes of the kinetic voltage-time curves recorded during reanodization are different. The effect of the anionic species incorporated from electrolyte solution into the porous template could be a probable explanation for the dissimilar rates of barrier layer growth.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133032836","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
Practical model for management, monitoring and research of passive optical network 无源光网络管理、监测与研究的实用模型
2017 XXVI International Scientific Conference Electronics (ET) Pub Date : 2017-09-01 DOI: 10.1109/ET.2017.8124332
K. Angelov, S. Sadinov, P. Kogias
{"title":"Practical model for management, monitoring and research of passive optical network","authors":"K. Angelov, S. Sadinov, P. Kogias","doi":"10.1109/ET.2017.8124332","DOIUrl":"https://doi.org/10.1109/ET.2017.8124332","url":null,"abstract":"Passive optical networks are widely used in modern communication networks for broadband access. A major problem in terms of development and operation of these networks is to provide opportunities for management, monitoring and research. The main objective of this work is to implement a practical model of a passive optical network for the delivery of interactive services to perform three main tasks: to allow convenient and easy training of staff; to permit a wide variety of practical research (traffic processing, introducing of new services and optical service modules, etc.); to be a platform for conducting general research in the field of passive optical networks.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115629103","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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