Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130300
Z. Biel, G. Kácsor, Jaroslav Ilončiak, J. Buday, M. Franko
This paper presents a control technique allowing parallel operation of 3-phase voltage source inverters. The outer control loop that ensures appropriate loads sharing, is based on the droop control principles with implemented virtual inductance. As the inner control loop a voltage regulation topology using values transformed into Direct-Quadrature (D, Q) synchronous reference frame is implemented. The dynamic and static behavior of whole control system was verified by simulations. Prepared control software based on described strategy was implemented into control systems of the three phase inverters forming a parallel system. The whole parallel system was verified by experimental measurements.
{"title":"Implementation of Control Strategy for Parallel Operation of Three Phase Inverters","authors":"Z. Biel, G. Kácsor, Jaroslav Ilončiak, J. Buday, M. Franko","doi":"10.1109/ELEKTRO49696.2020.9130300","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130300","url":null,"abstract":"This paper presents a control technique allowing parallel operation of 3-phase voltage source inverters. The outer control loop that ensures appropriate loads sharing, is based on the droop control principles with implemented virtual inductance. As the inner control loop a voltage regulation topology using values transformed into Direct-Quadrature (D, Q) synchronous reference frame is implemented. The dynamic and static behavior of whole control system was verified by simulations. Prepared control software based on described strategy was implemented into control systems of the three phase inverters forming a parallel system. The whole parallel system was verified by experimental measurements.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116795753","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130244
M. Radilova, P. Kamencay, M. Šinko, M. Benco, R. Hudec
In this paper the optimization tool of website for smart phone is presented. Internet is a part of everyday life in the last years. People visit websites with different devices. Many methods serve to properly display and optimize web content. These methods are constantly being improved to provide convenient viewing of Internet content. We've created our own app based on methods designed to display web content correctly. The app contains an algorithm for identifying the main content of a web page and then extracting text and images from it. The goal of the algorithm is to remove redundant information from the webpage and create a new view that contains only useful information. The document created in this way can be further used in web content viewing applications with minimized data transfer or as direct printing of the main web page content without unnecessary data.
{"title":"Optimization Tool of Website for Smart Phone","authors":"M. Radilova, P. Kamencay, M. Šinko, M. Benco, R. Hudec","doi":"10.1109/ELEKTRO49696.2020.9130244","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130244","url":null,"abstract":"In this paper the optimization tool of website for smart phone is presented. Internet is a part of everyday life in the last years. People visit websites with different devices. Many methods serve to properly display and optimize web content. These methods are constantly being improved to provide convenient viewing of Internet content. We've created our own app based on methods designed to display web content correctly. The app contains an algorithm for identifying the main content of a web page and then extracting text and images from it. The goal of the algorithm is to remove redundant information from the webpage and create a new view that contains only useful information. The document created in this way can be further used in web content viewing applications with minimized data transfer or as direct printing of the main web page content without unnecessary data.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121070918","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130329
B. Dobrucký, M. Beňová, R. Koňarik, O. Chernoyarov
The paper deals with the maximal and minimal overvoltage’s determination of power electronic systems having accumulated LC elements. These over-voltages depend on instantaneous energy states of system state variables. A new modified method of instantaneous calculation for state variables is used. It makes possible to specify the values of the state variables at any discrete time instant without having previous values, just initial ones at the beginning of the transient. Based on these values it is possible to estimate the voltage and current stresses of semiconductor elements and to circulate energy inside in power circuit. It is shown that maximal or minimal over-voltages depend on the instants of the transients whose knowledge is presented. Circulating energy makes it possible the correct operation of the power electronic system. Theoretical output results are confirmed by simulation experiments in Matlab/Simulink environment.
{"title":"Prediction of Voltage Stresses for Power Electronic System (LCLC) using Energy State Determination","authors":"B. Dobrucký, M. Beňová, R. Koňarik, O. Chernoyarov","doi":"10.1109/ELEKTRO49696.2020.9130329","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130329","url":null,"abstract":"The paper deals with the maximal and minimal overvoltage’s determination of power electronic systems having accumulated LC elements. These over-voltages depend on instantaneous energy states of system state variables. A new modified method of instantaneous calculation for state variables is used. It makes possible to specify the values of the state variables at any discrete time instant without having previous values, just initial ones at the beginning of the transient. Based on these values it is possible to estimate the voltage and current stresses of semiconductor elements and to circulate energy inside in power circuit. It is shown that maximal or minimal over-voltages depend on the instants of the transients whose knowledge is presented. Circulating energy makes it possible the correct operation of the power electronic system. Theoretical output results are confirmed by simulation experiments in Matlab/Simulink environment.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127111690","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130289
Adriana Tintelecan, A. C. Dobra, C. Martis
These days it is notable that the responsibilities regarding the environment are involving issues as climate change, changes in ecosystems, depletion of stratospheric ozone layer, even changes in hydrological systems, soil degradation, etc. Hence, Life Cycle Assessment (LCA) was created to evaluatethe consequences of the product's behavior on the environment. Through this analysis it will be possible to follow a final product from the extraction and processing of the necessary raw material, considering all its phases of production, transport, use, cost-effectiveness, maintenance and recycling or until its reintegration into the environment. LCA encompasses risk estimation and environmental impact and, based on International Standards ISO 14040 and ISO 14044, this methodology can be applied at every phase of the product’s life cycle.This scientific paper synthesizes the studies on the following subjects: the increasing importance of the electrical vehicle’s manufactory, the current situation of implementing sustainable development of electric vehicle (EV) components, along with a discussion of neglecting LCA applications, as a premise for balancing the negative impact of a product during its long-life cycle for the environment. Thus, the purpose of this scientific article is a review of the most relevant scientific articles written based on a life cycle impact assessment approach of EVs or its components (battery, electric motor, etc.). It will be discussed in depth the importance of an LCA analysis in each step of its implementation, the related main topics in the previous analyses, as well as the interpretation of the results obtained.
{"title":"Literature Review - Electric Vehicles Life Cycle Assessment","authors":"Adriana Tintelecan, A. C. Dobra, C. Martis","doi":"10.1109/ELEKTRO49696.2020.9130289","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130289","url":null,"abstract":"These days it is notable that the responsibilities regarding the environment are involving issues as climate change, changes in ecosystems, depletion of stratospheric ozone layer, even changes in hydrological systems, soil degradation, etc. Hence, Life Cycle Assessment (LCA) was created to evaluatethe consequences of the product's behavior on the environment. Through this analysis it will be possible to follow a final product from the extraction and processing of the necessary raw material, considering all its phases of production, transport, use, cost-effectiveness, maintenance and recycling or until its reintegration into the environment. LCA encompasses risk estimation and environmental impact and, based on International Standards ISO 14040 and ISO 14044, this methodology can be applied at every phase of the product’s life cycle.This scientific paper synthesizes the studies on the following subjects: the increasing importance of the electrical vehicle’s manufactory, the current situation of implementing sustainable development of electric vehicle (EV) components, along with a discussion of neglecting LCA applications, as a premise for balancing the negative impact of a product during its long-life cycle for the environment. Thus, the purpose of this scientific article is a review of the most relevant scientific articles written based on a life cycle impact assessment approach of EVs or its components (battery, electric motor, etc.). It will be discussed in depth the importance of an LCA analysis in each step of its implementation, the related main topics in the previous analyses, as well as the interpretation of the results obtained.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115186973","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130193
Ž. Ferková, P. Bober
This paper presents a simple turn-on and turnoff angles adjustment for average torque control method to increase an efficiency of small-size switched reluctance motor in wide speed and torque range. Increase in efficiency is demonstrated on FEA model of SRM which was verified against measurement on an experimental stand. A simplicity of the control algorithms allows to build a variable speed drive without high-performance microcontroller and FPGA or ASIC. Used SRM is a standard motor available on the market and its efficiency achieved 78.9% for torque 1.5 Nm at speed 1500 rpm.
{"title":"Switched Reluctance Motor Efficiency Increasing by Firing Angle Adjustment for Average Torque Control","authors":"Ž. Ferková, P. Bober","doi":"10.1109/ELEKTRO49696.2020.9130193","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130193","url":null,"abstract":"This paper presents a simple turn-on and turnoff angles adjustment for average torque control method to increase an efficiency of small-size switched reluctance motor in wide speed and torque range. Increase in efficiency is demonstrated on FEA model of SRM which was verified against measurement on an experimental stand. A simplicity of the control algorithms allows to build a variable speed drive without high-performance microcontroller and FPGA or ASIC. Used SRM is a standard motor available on the market and its efficiency achieved 78.9% for torque 1.5 Nm at speed 1500 rpm.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122297779","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130254
A.Yu. Tarasov, Y. Muratov, M. Nikiforov, A. Baranchikov
This paper describes the target tracking system development. This system based on neural network, which help to select necessary method of target tracking.
本文介绍了目标跟踪系统的开发。该系统基于神经网络，有助于选择必要的目标跟踪方法。
{"title":"Intelligent Video Computer Tracking System","authors":"A.Yu. Tarasov, Y. Muratov, M. Nikiforov, A. Baranchikov","doi":"10.1109/ELEKTRO49696.2020.9130254","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130254","url":null,"abstract":"This paper describes the target tracking system development. This system based on neural network, which help to select necessary method of target tracking.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122855535","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130345
D. Perepelkin, I. Tsyganov
Software defined networks (SDN) are a promising platform for implementing Quality of service (QoS) technologies, thanks to centralized network management and flexible configuration of traffic transfer rules using the OpenFlow protocol. Algorithm for dividing the network into zones of responsibility for the transmission of traffic of a particular service has developed in this work. The proposed solution is based on the use of QoS metrics of network communication channels and QoS routing. The presented algorithm is implemented as an external application for the Aruba VAN SDN Controller. Testing of the developed algorithm was carried out on various network topologies using the Mininet emulator.
软件定义网络(SDN)是实现服务质量(QoS)技术的一个很有前途的平台，这要归功于使用OpenFlow协议的集中式网络管理和灵活的流量传输规则配置。在这项工作中，提出了将网络划分为特定业务流量传输的责任区的算法。该解决方案基于网络通信信道的QoS度量和QoS路由的使用。该算法作为Aruba VAN SDN控制器的外部应用程序实现。使用Mininet仿真器在各种网络拓扑上对所开发的算法进行了测试。
{"title":"Network Slicing Algorithm with Quality of Services in Software Defined Networks","authors":"D. Perepelkin, I. Tsyganov","doi":"10.1109/ELEKTRO49696.2020.9130345","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130345","url":null,"abstract":"Software defined networks (SDN) are a promising platform for implementing Quality of service (QoS) technologies, thanks to centralized network management and flexible configuration of traffic transfer rules using the OpenFlow protocol. Algorithm for dividing the network into zones of responsibility for the transmission of traffic of a particular service has developed in this work. The proposed solution is based on the use of QoS metrics of network communication channels and QoS routing. The presented algorithm is implemented as an external application for the Aruba VAN SDN Controller. Testing of the developed algorithm was carried out on various network topologies using the Mininet emulator.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121901833","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}
Pub Date : 2020-05-01DOI: 10.1109/elektro49696.2020.9130225
{"title":"Scheduling of the Resources in a Local Energy Community","authors":"","doi":"10.1109/elektro49696.2020.9130225","DOIUrl":"https://doi.org/10.1109/elektro49696.2020.9130225","url":null,"abstract":"","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128592816","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}
Pub Date : 2020-05-01DOI: 10.1109/ELEKTRO49696.2020.9130346
P. Drgona, R. Stefun, S. Kaščák, J. Morgoš
Power electronics is application area where identification can be implemented. Thanks to identification, design of system can be improved and design time can be shorten. This article deals with synchronous buck converter identification. The article aims to map currently used identification methods and also describes the offline identification procedure for finding parametric model of real converter. Converter plant linear time-invariant model is found and described mathematically by its transfer function.
{"title":"Methods for identification of power converters in automotive industry","authors":"P. Drgona, R. Stefun, S. Kaščák, J. Morgoš","doi":"10.1109/ELEKTRO49696.2020.9130346","DOIUrl":"https://doi.org/10.1109/ELEKTRO49696.2020.9130346","url":null,"abstract":"Power electronics is application area where identification can be implemented. Thanks to identification, design of system can be improved and design time can be shorten. This article deals with synchronous buck converter identification. The article aims to map currently used identification methods and also describes the offline identification procedure for finding parametric model of real converter. Converter plant linear time-invariant model is found and described mathematically by its transfer function.","PeriodicalId":165069,"journal":{"name":"2020 ELEKTRO","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123374770","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}
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