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2020 21st International Scientific Conference on Electric Power Engineering (EPE)最新文献

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Influence of Angle of Rotation of Luminaires with Asymmetrical Luminous Intensity Distribution Curve on Calculated Photometric Parameters 非对称光强分布曲线灯具旋转角度对光度参数计算的影响
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269176
Marek Mokráň, Roman Dubnička, D. Gašparovský
{"title":"Influence of Angle of Rotation of Luminaires with Asymmetrical Luminous Intensity Distribution Curve on Calculated Photometric Parameters","authors":"Marek Mokráň, Roman Dubnička, D. Gašparovský","doi":"10.1109/EPE51172.2020.9269176","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269176","url":null,"abstract":"Lighting systems often use square LED panels or spherical luminaires, which may not always have an exactly symmetrical luminous intensity curve, even if they appear to be symmetrical. A problem with these luminaires can already arise when measuring luminous intensity distribution curves in a photometric laboratory due to incorrect symmetry determination. For design reasons, many times it is very complicated or even impossible to determine the photometric axes of the luminaire in the case of both spherical and square luminaires. This fact may cause a difference in the angle of rotation of the luminaire in light design software and real lighting systems and thus can cause a situation that the lighting system does not meet the requirements of standard STN EN 12464–1. Such a situation is, of course, undesirable and can cause considerable financial losses. Considering the uncertainties of measuring the parameters entering the lighting system calculation and other influences that cause the difference between the calculated and measured parameters, it is necessary to oversize the system to a certain extent, but there is an upper limit defined by Act no. 555/2005 on the energy performance of buildings. This article deals with the problem that can be caused by an incorrect angle of rotation of the luminaire with an asymmetrical luminous intensity curve when installing the lighting system.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425556","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
Factors Affecting Transient Stability Simulation Possibilities in PSCAD and MODES 影响PSCAD和MODES暂态稳定性模拟可能性的因素
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269233
J. Koudelka, Ivan Gromotovič, B. Bátora, P. Toman
{"title":"Factors Affecting Transient Stability Simulation Possibilities in PSCAD and MODES","authors":"J. Koudelka, Ivan Gromotovič, B. Bátora, P. Toman","doi":"10.1109/EPE51172.2020.9269233","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269233","url":null,"abstract":"The paper deals with factors affecting transient stability. Basic factors affecting transient stability regarding the system parameters and their influence are described. Comparison of simulation possibilities of two pieces of software, PSCAD and MODES, is done for defined factors (machine type, AVR, PSS, fast valving, resistance). Simulations results obtained using dynamic models built in PSCAD and MODES are discussed and compared regarding different factors.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123654047","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
Compensation of reactive power in LV network and its impact on reactive power flow through distribution grid 低压电网无功补偿及其对配电网无功潮流的影响
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269206
Viktor Jurák, Zuzana Bukvišová, M. Ptacek, D. Topolanek, J. Orságová
{"title":"Compensation of reactive power in LV network and its impact on reactive power flow through distribution grid","authors":"Viktor Jurák, Zuzana Bukvišová, M. Ptacek, D. Topolanek, J. Orságová","doi":"10.1109/EPE51172.2020.9269206","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269206","url":null,"abstract":"This article is focused on reactive power flow analysis in LV and MV networks. In the first section, individual power network elements that contribute with their reactive power to the distribution network are discussed. The second part of this paper is dedicated to the reactive power flow calculation using PSS® Sincal simulation software, where a network with distributed generation equipped with Volt-Var regulation was modelled. The aim of this work is to evaluate the impact of the reactive power compensation on reactive power flows in the distribution network.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128168192","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
Fault localization method using WAM systems 基于WAM系统的故障定位方法
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269274
Zsolt Čonka, V. Kohan, M. Kolcun, Pálfi Judith, I. Rudas
{"title":"Fault localization method using WAM systems","authors":"Zsolt Čonka, V. Kohan, M. Kolcun, Pálfi Judith, I. Rudas","doi":"10.1109/EPE51172.2020.9269274","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269274","url":null,"abstract":"WAMS is the best technology for monitoring of electricity supply system. This system is helpful for operator to analyze of data from electricity supply system in real time. Purpose of this work is find and locate place of fault on electricity supply system. On simulate electricity supply system are applying three instances. On first instance are faults same, but distances of electricity supply system are different. In second instance, distances of electricity supply system are the same, but electric faults and electric arcs are different. In last instance are different distances of electricity supply, faults on network and values of electric arc. Result from instances is that it is possible to locate place of fault in one third of network distance. In other distance is this not possible with this method.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130615951","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
Comparison of control methods for power stage of battery management systems with 4 cells 4节电池管理系统功率级控制方法的比较
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269209
Marek Šimčák, P. Spánik
{"title":"Comparison of control methods for power stage of battery management systems with 4 cells","authors":"Marek Šimčák, P. Spánik","doi":"10.1109/EPE51172.2020.9269209","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269209","url":null,"abstract":"This article compares control techniques of active balancing system initially done with precise simulation models designed in PLECS environment. More in detail flyback converters are considered as main balancing unit, while different control strategy is applied to investigate the impact on the voltage balance of battery cells. The first technique is based on primary current control (CC), while second technique is based on output voltage control (CV). Main observed variable is the dynamics of the balancing performance during discharge and charge mode.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131342404","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
Low Voltage Ride Through Characteristics of Grid Forming inverters 成网逆变器的低电压穿越特性
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269240
Ziqian Zhang, R. Schürhuber, L. Fickert, Guochu Chen, Yongming Zhang
{"title":"Low Voltage Ride Through Characteristics of Grid Forming inverters","authors":"Ziqian Zhang, R. Schürhuber, L. Fickert, Guochu Chen, Yongming Zhang","doi":"10.1109/EPE51172.2020.9269240","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269240","url":null,"abstract":"With the certainty of the high share of power electronics in power grid, algorithms for various grid forming inverters have emerged in academia. Due to the grid synchronization strategy of the grid forming inverter is completely different from the current grid following inverters, its dynamic characteristics during grid faults are also different. This article presents a universal approach to analysis the dynamic characteristic of grid following inverters during and after low voltage ride through by using power angle curve analysis method.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126729455","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
Bioenergy Electricity on Internet of Renewable Energy (IoRE) Framework for Sustainable Electricity Grid Integration in the European Union (EU) 基于可再生能源互联网的生物能源电力(IoRE)欧盟可持续电网整合框架
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269180
Famous O. Igbinovia, J. Krupka, P. Hájek, Z. Muller, J. Tlustý
{"title":"Bioenergy Electricity on Internet of Renewable Energy (IoRE) Framework for Sustainable Electricity Grid Integration in the European Union (EU)","authors":"Famous O. Igbinovia, J. Krupka, P. Hájek, Z. Muller, J. Tlustý","doi":"10.1109/EPE51172.2020.9269180","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269180","url":null,"abstract":"Climate change and the finite nature of traditional electricity production sources have resulted in the increasing utilization of renewable electricity sources in today's electricity grid architecture. Which is hoped to eventually lead to a hundred percent renewable electricity grid architecture. A purely renewable electricity grid will bring about the implementation of the Internet of Renewable Energy (IoRE). The European Union (EU) in an attempt to stimulate and strengthen the integration of electricity grid architecture of member states has set in motion several strategies. A great strategy should be a purely renewable electricity grid assets integration in the region. Besides hydro and wind energy, bioenergy is following on the listing of vital renewable energy sources consumed in the European electricity generation mix. Bioenergy electricity combined with other renewables on the IoRE framework will lead to a sustainable electricity grid integration in the EU. The anticipated utilization of IoRE technology in the short-term and long-term in the region will lead the way to assess a hundred percent renewable electricity product by consumers in each member country. It will as well bring about cleaner electricity product production in the EU.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127654318","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
Monte Carlo simulation of bremsstrahlung spectra for low energy electron accelerators 低能电子加速器轫致能谱的蒙特卡罗模拟
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269252
I. Haysak, O.V. Takhtasiev, J. Khushvaktov, A. Solnyshkin, A. Tanchak, R. Holomb, K. Katovský
{"title":"Monte Carlo simulation of bremsstrahlung spectra for low energy electron accelerators","authors":"I. Haysak, O.V. Takhtasiev, J. Khushvaktov, A. Solnyshkin, A. Tanchak, R. Holomb, K. Katovský","doi":"10.1109/EPE51172.2020.9269252","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269252","url":null,"abstract":"Four Monte-Carlo codes where tested to simulate bremsstrahlung spectra for accelerated electron beams at the energy range 4–20 MeV. All four codes give the same shape of the spectrum, in which in addition to the bremsstrahlung part there are characteristic energy lines of the target atom and an annihilation line of 0.511 MeV caused by secondary processes of the photoelectric effect and of electron-positron pair production. The absolute values of the energy spectrum have close magnitudes but it requires a more thorough study.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132740402","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
Analysis of PV Roof Installation Potential and Basic Load Diagram Evaluation Base on Cooperation with EV and BESS at Village with 3,000 Residents 基于电动汽车与BESS合作的3000人村光伏屋顶安装潜力分析及基本负荷图评价
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269183
M. Štefek, R. Filip, M. Paar, Tomaš Šácha
{"title":"Analysis of PV Roof Installation Potential and Basic Load Diagram Evaluation Base on Cooperation with EV and BESS at Village with 3,000 Residents","authors":"M. Štefek, R. Filip, M. Paar, Tomaš Šácha","doi":"10.1109/EPE51172.2020.9269183","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269183","url":null,"abstract":"The article is focused on the analysis of potential energy consumptions and productions of the municipality with population around 3,000 at the South Moravia region. The evaluations take to account current power consumption, current and potential future production by roof photovoltaics, energy exchange by battery system at distribution system level and by electromobility. The evaluated variants are based on projection by the Czech Republic authorities or current physical limits of the municipality. The main aim of the article is to show the theoretical values of energies that can be reached by current technology at the selected village.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"305 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131835976","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 High Efficiency and High Frequency GaN DC/DC Converter 高效高频GaN DC/DC变换器的设计
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269211
Filipp Frolov, J. Lettl
{"title":"Design of High Efficiency and High Frequency GaN DC/DC Converter","authors":"Filipp Frolov, J. Lettl","doi":"10.1109/EPE51172.2020.9269211","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269211","url":null,"abstract":"This paper presents a design of a high efficiency and high frequency synchronous buck converter based on GaN devices. Gallium Nitride (GaN) FETs are applied in this design to achieve the low power losses at high operation frequency. Synchronous buck topology is used to increase the system efficiency and reduce conduction losses. Converter is tested in several frequencies 100, 200, 400 kHz. The paper also contains the theoretical analysis of power losses in the converter. A synchronous buck converter prototype is designed and tested with peak efficiency of 98.9%.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134117048","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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