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2019 54th International Universities Power Engineering Conference (UPEC)最新文献

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Investigation of Load-Flow Control within a Power Electronics Enhanced Transmission System 电力电子增强型输电系统负荷流控制研究
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893620
F. Bennewitz, Markus Holbeint, A. Saçiak, J. Hanson, Gerd Griepentrogt, Eva-Marie Kurscheid, Sönke Michelsen
{"title":"Investigation of Load-Flow Control within a Power Electronics Enhanced Transmission System","authors":"F. Bennewitz, Markus Holbeint, A. Saçiak, J. Hanson, Gerd Griepentrogt, Eva-Marie Kurscheid, Sönke Michelsen","doi":"10.1109/UPEC.2019.8893620","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893620","url":null,"abstract":"The current development of the electrical power system regarding the implementation of renewable energies raises the need for an increased and improved controllability of the transmission system. This covers a more homogeneous utilization of the transmission system, to curtail power system extension. To cope with this challenge, load-flow controlling devices can be implemented into the transmission system. Up to now, this task has been fulfilled with phase shifting transformers, which are however limited regarding their dynamics. In the future, this can hence be adopted by power electronics. This paper thus investigates the controlling range of possible technologies in a simple test system, to further analyze possible power electronics topologies. Results show, that a suitable load-flow control can be realized with self-commutated converters as a well-known topology.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78509926","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
Utilizing Harmonics in Sequential and Parallel Disaggregation Schemes 利用谐波在顺序和并行分解方案
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893643
I. Skalidi, D. Kothona, A. Bouhouras, Dimitris Tsiggenopoulos, N. Poulakis, Ioannis Vandikas, Georgios C. Christoforidis, I. Panapakidis
{"title":"Utilizing Harmonics in Sequential and Parallel Disaggregation Schemes","authors":"I. Skalidi, D. Kothona, A. Bouhouras, Dimitris Tsiggenopoulos, N. Poulakis, Ioannis Vandikas, Georgios C. Christoforidis, I. Panapakidis","doi":"10.1109/UPEC.2019.8893643","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893643","url":null,"abstract":"Scope of this paper is to examine the performance of two disaggregation schemes for NILM algorithms based on the utilization of current harmonic vectors. The analysis is based on measurements performed on real residential installation and the utilized features regarding the formulation of the load signatures of the appliances refer to the odd harmonic current vectors up to the fifth harmonic order. Moreover, a large number of measured appliance combinations is used for the application of the disaggregation schemes in order to evaluate their performance. The first scheme relies on sequential disaggregation for the harmonic orders, starting from the fifth and moving on to the first. The second scheme concerns simultaneous disaggregation of all harmonic orders in a parallel manner. The merits and flaws of both schemes are highlighted and the results indicate that for the parallel disaggregation scheme the appliance identification performance is higher at the expense of the computational burden.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"38 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76591791","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 DC loads in hybrid local energy communities 混合本地能源社区直流负荷的影响
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893568
Adrian Stroescu, Valeriu Vacaru, A. Dumitrescu
{"title":"Impact of DC loads in hybrid local energy communities","authors":"Adrian Stroescu, Valeriu Vacaru, A. Dumitrescu","doi":"10.1109/UPEC.2019.8893568","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893568","url":null,"abstract":"Degradation of natural environment has a negative impact on the quality of life. In order to eliminate the factors that lead to excessive pollution, it is necessary to find alternative solutions - sustainable and environmentally friendly in all industrial fields, including electric energy generation and consumption. Consequently, renewable energy sources together with new generation of loads are a key factor in the development of future energy systems and those DC sources and DC loads that could be integrated in hybrid microgrids. Several configurations of hybrid microgrids are presented in this paper, together with a study case based on a local energy community of Prosumers with PV generation and potential DC loads.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"103 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76348624","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
[UPEC 2019 Title Page] [UPEC 2019标题页]
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/upec.2019.8893537
{"title":"[UPEC 2019 Title Page]","authors":"","doi":"10.1109/upec.2019.8893537","DOIUrl":"https://doi.org/10.1109/upec.2019.8893537","url":null,"abstract":"","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88420751","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
Audible Noise and Corona Losses of DC Circuits on Hybrid Overhead Lines 混合架空线路直流回路的可听噪声和电晕损耗
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893624
Kent Ridha Ibrahim, Suwarno, O. Pischler, U. Schichler
{"title":"Audible Noise and Corona Losses of DC Circuits on Hybrid Overhead Lines","authors":"Kent Ridha Ibrahim, Suwarno, O. Pischler, U. Schichler","doi":"10.1109/UPEC.2019.8893624","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893624","url":null,"abstract":"Hybrid overhead lines (OHL) are a promising concept to increase transmission capacity without building new lines. Due to the small distance between the AC and DC circuits on a hybrid OHL, an AC ripple will be superimposed on the DC conductor surface gradients which influences audible noise (AN) and corona losses (CL). In this paper, calculations regarding capacitive and inductive coupling affecting the surface gradients of the DC circuit of a fictive Austrian 420 kV hybrid OHL are presented. Furthermore, AN measurements were carried out to investigate how an AC ripple affects AN of a DC circuit on hybrid OHL. The results show that the AC ripple increases AN, especially for positive DC polarities, and that the effectiveness of conductor surface treatments is reduced noticeably. Additionally, the gathered results were used to carry out AN and CL predictions for the analyzed Austrian OHL.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"6 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88902403","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
Infrared Procedure for Monitoring Long-term Thermal Stresses of Electrical Equipment 监测电气设备长期热应力的红外程序
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893616
A. Dragomir, Marian Atănăsoaei, M. Adam, M. Andrusca, C. Deac, Marian Dragomir
{"title":"Infrared Procedure for Monitoring Long-term Thermal Stresses of Electrical Equipment","authors":"A. Dragomir, Marian Atănăsoaei, M. Adam, M. Andrusca, C. Deac, Marian Dragomir","doi":"10.1109/UPEC.2019.8893616","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893616","url":null,"abstract":"The paper's aim is to highlight the procedure of monitoring the thermal stresses of electrical equipment through the infrared thermography. In order to obtain satisfactory results for the thermal stresses estimation, a good definition of the correction parameters along with the selection of the optimum conditions for performing the infrared investigations must be accomplished. The paper describes a procedure for determining the thermal stress of a busbar system made of two branches of different electrical loads, with the use of infrared monitoring. Also, the proper way of interpreting the thermal images will be presented. The laboratory experiment is intended to exemplify how to apply the infrared monitoring procedure over the performed infrared investigation. After applying this procedure, the temperature values extracted from the thermal images were accordingly adjusted, and thus a correct interpretation of the identified thermal fault will be achieved.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89181852","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
Modeling of Battery Electric Vehicles for Degradation Studies 基于退化研究的纯电动汽车建模
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893474
Lisa Calearo, Andreas Thingvad, M. Marinelli
{"title":"Modeling of Battery Electric Vehicles for Degradation Studies","authors":"Lisa Calearo, Andreas Thingvad, M. Marinelli","doi":"10.1109/UPEC.2019.8893474","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893474","url":null,"abstract":"The paper characterizes dynamics and modelling of a Lithium-ion battery. Theoretical formulation and literature review are combined to derive the necessary battery characterization. The three main dynamics for modeling the battery are: direct-current electrical equivalent circuit, state-of-charge (SOC) and thermal dynamic. Furthermore, the capacity fade caused by degradation is considered as a fourth dynamic. Degradation is considered as the sum of calendar aging and cycling loss dynamics. The modeling procedure has general validity and can be used for different battery chemistries by changing specific parameters. The model is tailored for a 40 kWh Lithium Nickel Manganese Cobalt (NMC) Oxide battery, which is currently used in the Nissan LEAF 2018. Considering a user driving 45 km/day and the temperature of the years 2017 and 2018 in Denmark, the battery capacity fade is found to be between 2 and 5% of the battery capacity after two years of use. Degradation is highly dependent on the average level of SOC during the years.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88616920","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: 17
UPEC 2019 Welcome Message UPEC 2019欢迎辞
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/upec.2019.8893504
{"title":"UPEC 2019 Welcome Message","authors":"","doi":"10.1109/upec.2019.8893504","DOIUrl":"https://doi.org/10.1109/upec.2019.8893504","url":null,"abstract":"","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89301859","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
Applications of Clustering Techniques to the Definition of the Bidding Zones 聚类技术在竞价区定义中的应用
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893556
Andrea Griffone, A. Mazza, G. Chicco
{"title":"Applications of Clustering Techniques to the Definition of the Bidding Zones","authors":"Andrea Griffone, A. Mazza, G. Chicco","doi":"10.1109/UPEC.2019.8893556","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893556","url":null,"abstract":"The definition of the bidding zones is an essential aspect to develop an electricity market on large power systems, by trading off between situations with uniform price and nodal prices. In this paper, the results of the application of a set of clustering algorithms (k-means, k-medoids, hierarchical clustering, and price differential clustering) to the formation of the bidding zones are presented. The classical versions of the methods used require post-processing to identify connected bidding zones. The customised versions of the methods incorporate topology constraints in the clustering procedures. The input data are given by locational marginal prices (LMPs), power transfer distribution factors (PTDFs), and network topology information. The clustering algorithms have been applied to the study of a reduced model of the European transmission system, for different numbers of clusters. The results have been assessed by using two synthetic indicators that represent clustering validity and the possible occurrence of market power in the bidding zones formed. Finally, a conjecture has been expressed: methods that use LMPs tend to be more effective according with classical clustering validity-based indicators, while methods that use PTDFs tend to be more effective according with market power-based indicators.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"62 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84701840","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: 7
Development of a Modular Framework for Future Energy System Analysis 未来能源系统分析模块化框架的开发
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893472
Daniel Beulertz, S. Charousset, D. Most, S. Giannelos, Inci Yueksel-Erguen
{"title":"Development of a Modular Framework for Future Energy System Analysis","authors":"Daniel Beulertz, S. Charousset, D. Most, S. Giannelos, Inci Yueksel-Erguen","doi":"10.1109/UPEC.2019.8893472","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893472","url":null,"abstract":"This paper gives an overview of the modeling framework that is being developed within the Horizon2020 project plan4res. In the context of energy transition, integration of high shares of renewable energies will play a vital role for achieving the proposed climate targets. This brings new challenges to modeling tools, including data construction, implementation and solution techniques. In order to address these challenges, plan4res aims to create a well-structured and highly modular framework that will provide insights into the needs of future energy systems. An overview of the central modeling aspects is given in this paper. Finally, three case studies are presented that show the adequacy and relevance of the proposed optimization framework.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"7 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76985595","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: 7
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