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

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The Use of Probabilistic Approach in Power System Security Analyses 概率方法在电力系统安全分析中的应用
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269201
M. Przygrodzki, Paweł Kubek, R. Gwóźdź
{"title":"The Use of Probabilistic Approach in Power System Security Analyses","authors":"M. Przygrodzki, Paweł Kubek, R. Gwóźdź","doi":"10.1109/EPE51172.2020.9269201","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269201","url":null,"abstract":"The article describes the possibilities and methods of using the probabilistic approach in the field of power system security analyses. The calculations in contingency states were carried out assuming determined outages and probability outages. In the probabilistic approach, individual outages are treated according to the frequency of their occurrence, and not as certain events. Outages with very low probability are ignored, which affects the direction of long-term investments.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"1 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":"129977035","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
Methodology of Electricity Supplying of Critical Infrastructure in Crisis Situations 危机情况下关键基础设施供电方法研究
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269257
M. Čerňan, Z. Müller, J. Tlustý, Jiří Halaška
{"title":"Methodology of Electricity Supplying of Critical Infrastructure in Crisis Situations","authors":"M. Čerňan, Z. Müller, J. Tlustý, Jiří Halaška","doi":"10.1109/EPE51172.2020.9269257","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269257","url":null,"abstract":"The paper focuses on the issues associated with the supply of electricity to critical infrastructure in crisis situations. In the introductory passages, the paper focuses on the methodology of selecting objects of critical infrastructure. Subsequently, attention is paid to selected aspects associated with the operation of electricity generation during a crisis situations. By using suitable types of production units (gas turbines), it is possible to gradually start island operation in the surrounding region, primarily for critical infrastructure facilities, whose main task is to protect the population. In the practical part, the paper focuses on the issues of stability of the island operation mode. The results of the case study show that for the switch-on plan it is necessary to take into account the dynamic characteristics of island operation by feeding the objects of critical infrastructure gradually after small electrical power steps.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"36 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":"116288096","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
Dynamic stability in large power system : CCT calculations methods and power trajectory analysis 大型电力系统的动态稳定性:CCT计算方法和功率轨迹分析
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269200
Štefan Korčak
{"title":"Dynamic stability in large power system : CCT calculations methods and power trajectory analysis","authors":"Štefan Korčak","doi":"10.1109/EPE51172.2020.9269200","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269200","url":null,"abstract":"This paper deals with ways of considering dynamic stability with possibilities of its assessment by means of simulation computing, which includes parameters simulating the actual operation of the power system with all its elements.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"9 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":"122513420","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
Emergency situations in the transmission grid and opportunities for their prevention through the intraday electricity market 输电网中的紧急情况以及通过日内电力市场进行预防的机会
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269167
Jakub Šrom, Z. Müller
{"title":"Emergency situations in the transmission grid and opportunities for their prevention through the intraday electricity market","authors":"Jakub Šrom, Z. Müller","doi":"10.1109/EPE51172.2020.9269167","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269167","url":null,"abstract":"The intraday electricity market is increasing its importance within the electricity markets. This article introduces real life examples of the contribution of the intraday electricity market towards the prevention and resolution of emergency situations in the electricity system. The article also emphasizes the positive contribution of the integration of the intraday electricity market into the single intraday electricity market in Europe.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"66 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":"126519655","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 Capacitors in SST SST电容器的设计
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269224
J. Zedník
{"title":"Design of Capacitors in SST","authors":"J. Zedník","doi":"10.1109/EPE51172.2020.9269224","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269224","url":null,"abstract":"This paper deals with the design of all “power” capacitors in two variants of a solid-state transformer (SST) described in this work. SSTs are nowadays at the center of attention mainly due to reducing the size and weight of traction transformers in railway vehicles and in power transfer, where it should be part of an energy router that could replace the distributional transformer. In the case of three-stage SST, there are three types of capacitors: in submodules of a modular multilevel converter (MMC), in the MV-DC link, and on outputs of the galvanic insulation modules (DAB). In the case of two-stage SST, there are two types of capacitors: one type is in the DC link, and another type is on the outputs of the galvanic insulation modules, similarly as in the previous case. If we choose the same voltage levels for the DAB, we will get different numbers of DAB needed for the two variants of SSTs with different capacitors and medium frequency transformers (MF Tr).","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"42 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":"126200710","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
Verification of the MCNP model of Manganese Bath 锰浴MCNP模型的验证
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269226
J. Rataj, T. Bily, O. Huml, O. Novak, Pavel Suk
{"title":"Verification of the MCNP model of Manganese Bath","authors":"J. Rataj, T. Bily, O. Huml, O. Novak, Pavel Suk","doi":"10.1109/EPE51172.2020.9269226","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269226","url":null,"abstract":"The paper describes verification of the MCNP model of manganese bath used at the Czech Technical University for education purposes. The bath consists of a spherical tank made of plexiglass filled with an aqueous solution of MnSO4with the total volume of 163.3 litres. Neutron sources are introduced into the centre of the bath manually using a dry plexiglass channel. The MCNP model contains all important geometric and material details of the bath including optional neutron source. Its verification was performed based on experimentally determined activity; as well, neutron emission rates for used radionuclide sources were compared. The experiments were performed with two various radionuclide neutron sources (Am-Be and 252Cf). Comparison of calculation results with ENDF/B-VII.1 and JEFF-3.2 nuclear data libraries was performed.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"1 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":"130559062","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
The impact of a electric vehicle charging on the distribution system 电动汽车充电对配电系统的影响
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269213
Maksym Oliinyk, J. Dzmura, Daniel Pál
{"title":"The impact of a electric vehicle charging on the distribution system","authors":"Maksym Oliinyk, J. Dzmura, Daniel Pál","doi":"10.1109/EPE51172.2020.9269213","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269213","url":null,"abstract":"The last European directives 2014/94/EU, 2009/28/EC and 2010/31/EU suggest major changes in the functioning of distribution system operators. This article is aimed at studying the influence of electric vehicles on the distribution system. The current electric networks are not ready for the widespread use of electric cars without the introduction of modern consumption management systems, storage systems, and the widespread use of renewable energy sources. The article demonstrates the results of the implementation of these directives.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"230 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":"129373876","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
Concept of Smart Automatic Reclosing for Transient Stability Improvement of Large Power Systems 大型电力系统暂态稳定改进的智能自动重合闸概念
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269192
J. Slavík, Ž. Eleschová
{"title":"Concept of Smart Automatic Reclosing for Transient Stability Improvement of Large Power Systems","authors":"J. Slavík, Ž. Eleschová","doi":"10.1109/EPE51172.2020.9269192","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269192","url":null,"abstract":"This paper presents a transient stability analysis of large power systems equipped with smart automatic circuit reclosers (ACRs). ACRs may help to prevent stability loss even in case of unsuccessful reclosure if they are set correctly. First, we need to analyze transient stability loss zones for correct use of smart recloser in large power systems with multiple synchronous generators. Those areas are represented by a matrix of power lines where the same synchronous generator loses its transient stability in case of short circuit. Secondly, we need to link smart recloser with its own zone. Analysis of simulation results in large power systems and main principles of smart reclosers being used are presented below.","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":"131084563","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 comparative study of synchronverter stability 同步器稳定性的比较研究
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269194
Lavr Vetoshkin, Z. Müller
{"title":"A comparative study of synchronverter stability","authors":"Lavr Vetoshkin, Z. Müller","doi":"10.1109/EPE51172.2020.9269194","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269194","url":null,"abstract":"Electric grids, after a large scale installation of renewable energy sources, have dramatically changed. One of the major concerns in the operation of the modern power system is low grid inertia. Different approaches are being proposed to overcome this challenge. However, the prevalent idea is to introduce virtual inertia to the system using a sophisticated control strategy of power electronics in the electric grids. This paper investigates the synchronverter, which is a possible solution to the mentioned problem. The first chapter briefly describes the problem and the synchronverter control strategy of power converters. The second chapter provides a mathematical model of the synchronverter in $d-q$ frame connected to an infinite bus. Furthermore, it analysis the small signal stability of the synchronverter. The third chapter gives a brief overlook of small signal stability of traditional vector control. Moreover, this chapter provides a comparison between the researched approach and the conventional one.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"52 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":"124251570","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
Simulation of Impulse Generator Followed by Practical Verification 脉冲发生器的仿真及实际验证
2020 21st International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2020-10-19 DOI: 10.1109/EPE51172.2020.9269269
Luděk Pelikán, Michal Krbal, J. Orságová
{"title":"Simulation of Impulse Generator Followed by Practical Verification","authors":"Luděk Pelikán, Michal Krbal, J. Orságová","doi":"10.1109/EPE51172.2020.9269269","DOIUrl":"https://doi.org/10.1109/EPE51172.2020.9269269","url":null,"abstract":"Paper focuses on simulating a real impulse generator in LTspice in such a way that it is close to real conditions. There is a description of comparison of measured and simulated important monitored values. These are the front time $T_{1}$ and the time to half value $tau_{2}$, which are the monitored parameter of waves for each atmospheric impulse voltage test.","PeriodicalId":177031,"journal":{"name":"2020 21st International Scientific Conference on Electric Power Engineering (EPE)","volume":"429 1-3 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":"116570795","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
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