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2019 20th International Scientific Conference on Electric Power Engineering (EPE)最新文献

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Influence of Partial Anisotropy on the Nominal Values Induction Machine 部分各向异性对标称值感应电机的影响
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778055
O. Orság, P. Pečínka, S. Kocman, Stanislav Rusnok
{"title":"Influence of Partial Anisotropy on the Nominal Values Induction Machine","authors":"O. Orság, P. Pečínka, S. Kocman, Stanislav Rusnok","doi":"10.1109/EPE.2019.8778055","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778055","url":null,"abstract":"The article deals with the influence of the partial anisotropy of electrotechnical sheets metal for electrical rotating machine. Specifically, the article is investigated by influence, some nominal values. The outcome of which can be influenced by both the material and the conditions of the machine measurement. Using the Ansys Maxwell 2D simulation software, we attempted to describe behavior in different states, and we also propose a solution to this problem.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"292 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126190870","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
Application of the Designed Model of the Blasted Electric Arc under Various Argon Flow Rate 不同氩流量下喷焊电弧设计模型的应用
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778030
J. Šenk, I. Laznickova, Ivana Lakubova, O. Coufal
{"title":"Application of the Designed Model of the Blasted Electric Arc under Various Argon Flow Rate","authors":"J. Šenk, I. Laznickova, Ivana Lakubova, O. Coufal","doi":"10.1109/EPE.2019.8778030","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778030","url":null,"abstract":"The designed mathematical model of the intensively blasted electric arc burning inside the arc heater anode channel is based on the energy and mass conservation laws and Ohm's law. With the aim of decreasing the computational burden and making the model easy to understand for students, simplifying presumptions are included. Validity of them could be impaired when the model is applied with experimental data obtained under very different operational conditions. Thus, verification of the model should be made with the data measured in a wide range of gas flow rate, input power, radius and length of the anode channel, etc. In this contribution, attention is focused on the influence of the working gas flow rate, which is crucial for cooling and stabilization of the arc. Axial distributions of the arc temperature, radius and potential drop are computed for two argon flow rates differing by 100 percent, with other operational conditions unchanged. The results are illustrated in figures and discussed.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126673471","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
Impact of E-mobility on Unbalance in Low Voltage Distribution Network 电动汽车对低压配电网不平衡的影响
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778186
Ž. Eleschová, J. Bendík, M. Cenký, A. Beláň, B. Cintula, P. Janiga
{"title":"Impact of E-mobility on Unbalance in Low Voltage Distribution Network","authors":"Ž. Eleschová, J. Bendík, M. Cenký, A. Beláň, B. Cintula, P. Janiga","doi":"10.1109/EPE.2019.8778186","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778186","url":null,"abstract":"E-mobility is a fast-growing sector that influences many industries. In this paper, we deal with possible influence of e-mobility development on the existing low voltage distribution network. The paper contains results of load-flow calculation with charging of electric cars in household and their analysis from of view of voltage values and voltage unbalance in the low voltage distribution net.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130471780","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
Temperature Calculation of Overhead Power Line Conductors According to the CIGRE Technical Brochure 207 根据CIGRE技术手册207计算架空电力线路导线温度
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778173
Martin Kanálik, Anastázia Margitová, J. Urbanský, L. Beňa
{"title":"Temperature Calculation of Overhead Power Line Conductors According to the CIGRE Technical Brochure 207","authors":"Martin Kanálik, Anastázia Margitová, J. Urbanský, L. Beňa","doi":"10.1109/EPE.2019.8778173","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778173","url":null,"abstract":"An overhead power line is a structure used in the electric power system to transmit an electrical energy. The performance of overhead power lines depends on their parameters. An important parameter of the power line in the power system is its thermal limit. This article deals with the temperature calculation of overhead power line ACSR conductors according to the methodology stated in CIGRE technical brochure 207. The calculated temperature is also verified by the measurement on a real power line. At the end of the article the maximum allowable current (ampacity) of ACSR conductors depending on climatic conditions is also calculated. Obtained results are compared with actual current limits (for summer and winter season) using by Slovak transmission system operators.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134440807","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
An Approach to the Determination of the Harmonic Content of a Waveform by Analysis of its DC Component 通过分析波形的直流分量来确定其谐波含量的方法
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778036
M. Barrett
{"title":"An Approach to the Determination of the Harmonic Content of a Waveform by Analysis of its DC Component","authors":"M. Barrett","doi":"10.1109/EPE.2019.8778036","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778036","url":null,"abstract":"This experimental work is part of a larger project investigating the possibility of using a programmable controller (PLC) for condition monitoring of generators. Analysis of a generator's output current signature can yield information regarding its status. This paper proposes an approach based on the DC component of the generator's output voltage to determine whether it is sinusoidal or complex and to generate a binary signal to flag which condition applies. An Arduino microcontroller is used to make that determination and to generate a PLC compatible signal to flag the results. A series of experiments was carried out in order to test the capability of the proposed system over a range of harmonics. While this work is at an early stage, the results to date show promise and further work is proposed.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133375179","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
Mathematical Model of the Inverter with Advanced Features 高级特性逆变器的数学模型
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8777965
M. Vojtek, P. Mastný, J. Morávek, Rafael Bogo Portal Chagas
{"title":"Mathematical Model of the Inverter with Advanced Features","authors":"M. Vojtek, P. Mastný, J. Morávek, Rafael Bogo Portal Chagas","doi":"10.1109/EPE.2019.8777965","DOIUrl":"https://doi.org/10.1109/EPE.2019.8777965","url":null,"abstract":"This paper deals with an increasing share of renewable energy sources connected into low voltage grids, related problems and possible solutions. Trends are moving to utilization of so-called advanced inverters. Main contribution of the paper lies in creating the model of such inverter, what is further described together with its implementation using Matlab Simulink software and Simscape Electrical componets library. Validation of model results with measured one is also provided. An example of using the model in a simulation for assessing the increase in voltage when connecting a photovoltaic with a conventional inverter compared to connecting using an inverter with advanced functions is shown. Evaluation of model performance is also carried out.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133889813","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
[Conference Sponsors] (会议的赞助商)
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/epe.2019.8777967
{"title":"[Conference Sponsors]","authors":"","doi":"10.1109/epe.2019.8777967","DOIUrl":"https://doi.org/10.1109/epe.2019.8777967","url":null,"abstract":"","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115890612","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
Bi-directional Charger with a High Power Density for Smart Grids 用于智能电网的高功率密度双向充电器
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778029
R. Hrbác, V. Kolář, L. Hrdina
{"title":"Bi-directional Charger with a High Power Density for Smart Grids","authors":"R. Hrbác, V. Kolář, L. Hrdina","doi":"10.1109/EPE.2019.8778029","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778029","url":null,"abstract":"The article focuses on the use of bi-directional chargers with high power density in smart grids. Furthermore, a selected atypical topology of bidirectional charger is described. This topology allows single-stage power transmission, which reduces switching losses and circuit complexity. The high power density determines the chargers to be used in electric vehicles, becoming important parts of smart grids. The assumed characteristics of the developed charger were practically tested on a functional prototype in two operation modes, i.e. charge and discharge modes.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121425069","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
Evaluation system for power loss identification of perspective wide bandgap semiconductor transistors 透视式宽禁带半导体晶体管损耗识别评估系统
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8777998
M. Pipíška, P. Sojka, J. Šedo
{"title":"Evaluation system for power loss identification of perspective wide bandgap semiconductor transistors","authors":"M. Pipíška, P. Sojka, J. Šedo","doi":"10.1109/EPE.2019.8777998","DOIUrl":"https://doi.org/10.1109/EPE.2019.8777998","url":null,"abstract":"The paper presents a system for measuring switching and conductivity losses for different types of transistors. The measurement system is composed of hardware and software that evaluates the total transistor losses from instantaneous values. The hardware part consists of a test board that includes a power supply, transistor driver, measurement points, transistor, freewheel diode and oscilloscope. The software part (GUI) is done in Matlab, which displays the measured voltage and current waveforms and the calculated transistor losses. The result of the article is the measured loss values at different switching frequencies and power.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128254529","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
Optimized Use of the Steam Accumulator in the Combined Heat and Power Production 蒸汽蓄能器在热电联产中的优化利用
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778141
J. Votava, J. Kynčl, Z. Muller, Lavr Vetoshkin, Jan Rimbala
{"title":"Optimized Use of the Steam Accumulator in the Combined Heat and Power Production","authors":"J. Votava, J. Kynčl, Z. Muller, Lavr Vetoshkin, Jan Rimbala","doi":"10.1109/EPE.2019.8778141","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778141","url":null,"abstract":"This paper presents technical analysis of the usage of steam accumulator in the combined heat and power production and also in all general steam production. Created mathematical model is possible to use for evening on wanted slope of steam flow change.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127286686","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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