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

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Combination of Biogas Station and Photovoltaic Power Plant Operation 沼气站与光伏电站联合运行
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8777954
Ladislav Novosád, Z. Hradílek
{"title":"Combination of Biogas Station and Photovoltaic Power Plant Operation","authors":"Ladislav Novosád, Z. Hradílek","doi":"10.1109/EPE.2019.8777954","DOIUrl":"https://doi.org/10.1109/EPE.2019.8777954","url":null,"abstract":"This article deals with the possibilities of cooperation of selected renewable energy sources in the distribution grid. This is a combination of the operation, or cooperation of, a biogas station with a photovoltaic power plant. The aim of the article is to outline several basic possibilities of cooperation of the above mentioned sources, including the introduction of technical aspects. To conclude, it proposes further solutions to the above problem, including their strengths and weaknesses.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"136 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":"123200524","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
Selection of chosen model parameters for technical and economic analyzes of the power system 为电力系统的技术经济分析选择模型参数
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8777997
M. Przygrodzki, R. Gwóźdź, Lukasz Wakuliñski
{"title":"Selection of chosen model parameters for technical and economic analyzes of the power system","authors":"M. Przygrodzki, R. Gwóźdź, Lukasz Wakuliñski","doi":"10.1109/EPE.2019.8777997","DOIUrl":"https://doi.org/10.1109/EPE.2019.8777997","url":null,"abstract":"The article presents a technical and economic model used in development analyses of the Polish national power system (NPS). Selected problems and proposals for solutions allowing for the optimization of calculations for the formulated model will be presented. Practical aspects of analysis and application of results to NPS will be presented.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"61 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131878804","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
Computer based Study about the Load Regime of a 40 MVA 110/6 kV Transformer 40 MVA 110/6 kV变压器负荷动态的计算机研究
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778063
R. Petrenci, M. Frigura-Iliasa, F. Frigura-Iliasa, L. Dolga, H. Filipescu, D. Vatau
{"title":"Computer based Study about the Load Regime of a 40 MVA 110/6 kV Transformer","authors":"R. Petrenci, M. Frigura-Iliasa, F. Frigura-Iliasa, L. Dolga, H. Filipescu, D. Vatau","doi":"10.1109/EPE.2019.8778063","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778063","url":null,"abstract":"The power transformer is probably one of the most complex and most important equipment existing in the power transmission and distribution system. The evaluation of the technical condition, done with the double purpose of extending its life and reducing the risk of defect, is a complex and important activity, depending on the importance of the transformer in the system. Whether it's routine investigations or special investigations that appeal to the latest techniques and methods of measurement, in order to get a correct diagnosis, the measured data must be as accurately determined, correlated and evaluated on the basis of applicable technical regulations, the latest recommendations and information from the literature, and last but not least, the similar experience. This paper will show a case study for the variation of the load efficiency (the yield) as well as some economical aspects, based on real measurements and technical data.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"8 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":"134470401","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
Diagnosis of Dielectric Parameters of PE and PVC Insulations PE和PVC绝缘介质参数的诊断
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8777945
Luděk Pelikán, Michal Krbal, J. Orságová
{"title":"Diagnosis of Dielectric Parameters of PE and PVC Insulations","authors":"Luděk Pelikán, Michal Krbal, J. Orságová","doi":"10.1109/EPE.2019.8777945","DOIUrl":"https://doi.org/10.1109/EPE.2019.8777945","url":null,"abstract":"This paper focuses on measuring the electrical properties of samples of insulated cables from several different types of polyethylene and polyvinyl chloride using an automatic electric bridge. The paper shows the change of dielectric properties at different insulation loads with subsequent comparison and evaluation.","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":"134621637","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 Combination of VSG and Amended Fractional-Order Repetitive Control for Improving Power Quality of Grid-Connected Inverter 结合VSG和改进分数阶重复控制改善并网逆变器电能质量
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778191
H. Kazemi, E. Afjei, A. Rahmati
{"title":"A Combination of VSG and Amended Fractional-Order Repetitive Control for Improving Power Quality of Grid-Connected Inverter","authors":"H. Kazemi, E. Afjei, A. Rahmati","doi":"10.1109/EPE.2019.8778191","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778191","url":null,"abstract":"Nowadays, in the modern power systems, due to increasing the application of renewable energy sources, power inverters are most commonly used electronic devices in the energy systems for ac/dc power conversion. Since the standard power inverters have extremely low inertia elements, the modern power systems meet insufficiency inertia to maintain the grid stability. In virtual synchronous generator (VSG) technique, virtual inertia is emulated in the power inverters by implementing swing equation and as a result, grid inertia is increased and grid stability will be satisfied. Although grid inertia issue is solved by VSG control, dealing with some power quality problems, such as grid current harmonic, which occurs in bad situations, has not been considered in this control theory. In this paper, a control approach based on a combination of VSG technique and amended fractional-order repetitive control (AFORC) is presented for grid-connected inverters to cope with the mentioned problem. The results of simulation studies proved that the proposed method besides fulfilling the main VSG objectives, such as transient frequency response enhancement and increasing total inertia of the power systems, it also can extremely diminish harmonic components of the current injected to the grid in the presence of distorted grid voltage and unbalanced nonlinear rectifier loads.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"88 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":"133312904","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
Copyright 版权
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/epe.2019.8778153
{"title":"Copyright","authors":"","doi":"10.1109/epe.2019.8778153","DOIUrl":"https://doi.org/10.1109/epe.2019.8778153","url":null,"abstract":"","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"24 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":"133453311","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
The Control Process of an On-off Controller 开关控制器的控制过程
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778003
T. Uriča, P. Sojka, D. Koniar, Anna Simonova Libor Hargas
{"title":"The Control Process of an On-off Controller","authors":"T. Uriča, P. Sojka, D. Koniar, Anna Simonova Libor Hargas","doi":"10.1109/EPE.2019.8778003","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778003","url":null,"abstract":"Regulation process of the two-position controller is defined by dynamic properties of the controlled system and by the control algorithm. This paper is focused on control of stable, 2ndorder, continuous systems with overdamped step response. There are 2 main types of control algorithms of the on-off controller: comparative mode and fixed frequency mode. Both algorithms share a few differences, such as regulation time, precision and quality of control process. But the main difference is control logic. In the comparative mode, the controller output is switched based on the comparison of desired state and the actual state of a system. On the other hand, the control algorithm of fixed frequency mode is given by functionality between the input signal and the controlled variable. In addition to basic control algorithms, a new type of control was tested: hybrid mode. This mode combines advantages of comparative mode and fixed frequency mode, to improve dynamics of the regulation process of the two-position controller.","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":"130120099","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
Comparative Analysis of Measurement Methods for Partial Discharges Generated on the Surface of Solid Dielectrics in Insulating Oil 绝缘油中固体介质表面局部放电测量方法的比较分析
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778068
M. Kozioł, L. Nagi
{"title":"Comparative Analysis of Measurement Methods for Partial Discharges Generated on the Surface of Solid Dielectrics in Insulating Oil","authors":"M. Kozioł, L. Nagi","doi":"10.1109/EPE.2019.8778068","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778068","url":null,"abstract":"The article presents the results of partial discharge measurements using the UHF method and the conventional electric method, which were carried out in a model system of electrodes for generation of surface discharges on a solid dielectric immersed in mineral oil. Two model systems were analyzed; in the first system, a teflon plate was used as a solid dielectric and in the second system a pressboard plate was used. The measurements were carried out in laboratory conditions for alternating voltage.","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":"131794971","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
Magnetic Field Assessment in the Proximity of High Voltage Power Station Equipment 高压电站设备附近的磁场评估
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778197
M. Frigura-Iliasa, Felicia Baloi, A. Olariu, R. Petrenci
{"title":"Magnetic Field Assessment in the Proximity of High Voltage Power Station Equipment","authors":"M. Frigura-Iliasa, Felicia Baloi, A. Olariu, R. Petrenci","doi":"10.1109/EPE.2019.8778197","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778197","url":null,"abstract":"In the proximity of high voltage overhead lines or high voltage power equipment located inside power stations, high values of the magnetic field induction (and/or electric field intensity) could appear sometimes, too. Safety measures, both for environment as well as for human operators are mandatory. The realistic assessment of the magnetic field induction nearby these facilities is one important stage before adopting new design features or limiting the human exposure. This paper presents some measurements of the magnetic field induction, taken by our team, mostly at the Fantanele 220 kV/110 kV/20 kV Power Station, located in the Central Region of Romania and owned by the National Power System Operator, TRANSELECTRICA S.A. This case study will be completed with some electrical field measurements, for a better perspective on the electromagnetic field parameters. Data is also used for the refurbishment of the existing power facilities.","PeriodicalId":117212,"journal":{"name":"2019 20th International Scientific Conference on Electric Power Engineering (EPE)","volume":"15 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":"134621655","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
Study of Low-Voltage Ride Through of Wind Permanent Magnet Synchronous Generator by means of STATCOM 基于STATCOM的风力永磁同步发电机低压穿越研究
2019 20th International Scientific Conference on Electric Power Engineering (EPE) Pub Date : 2019-05-01 DOI: 10.1109/EPE.2019.8778058
N. Djagarov, Z. Grozdev, G. Enchev, J. Djagarova
{"title":"Study of Low-Voltage Ride Through of Wind Permanent Magnet Synchronous Generator by means of STATCOM","authors":"N. Djagarov, Z. Grozdev, G. Enchev, J. Djagarova","doi":"10.1109/EPE.2019.8778058","DOIUrl":"https://doi.org/10.1109/EPE.2019.8778058","url":null,"abstract":"Within the conception of green energy spreading more and more the wind generated energy became a promising source of electricity. The connection of wind parks to the net however causes problems concerning the stability and the quality of electro energy. The work of power system is sensible to the disturbances in the net and it is necessary to provide the low voltage ride through of wind synchronous generator consists from permanent magnets by the help of system devices like STATCOM. Using a mathematical model it is investigated the behavior of the generator and compensator by different disturbances in the net. Using different approaches and algorithms their control is investigated.","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":"133003279","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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