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

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Discussion about the Weather Impact on the Daily Outages in Urban Distribution System 天气对城市配电系统日停电影响的探讨
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893522
Yang Zhang, A. Mazza, E. Bompard, E. Roggero, G. Galofaro
{"title":"Discussion about the Weather Impact on the Daily Outages in Urban Distribution System","authors":"Yang Zhang, A. Mazza, E. Bompard, E. Roggero, G. Galofaro","doi":"10.1109/UPEC.2019.8893522","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893522","url":null,"abstract":"In this paper, an evaluation approach for analyzing the weather’s impact on the number of daily outages in the urban distribution system is explored. By dividing the number of outages into two levels, the task could be carried out as a binary classification problem. In this study, the actual outage data from the distribution system operator is analyzed together with the local weather condition records. First, the tendency of different outage levels to weather conditions is described by the Principal Component Analysis (PCA). Then, the Support Vector Machine (SVM) algorithm is adopted to build the classification model for predicting the outage levels based on the weather condition. An oversampling method is introduced to manage the severe imbalance between the two outage levels. At the end, the performance of the classification model is assessed with the Receiver Operating Characteristic (ROC) curve.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"262 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":"75104349","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
Impact of Data-Driven Modelling Approaches on the Analysis of Active Distribution Networks 数据驱动建模方法对有功配电网分析的影响
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893489
I. S. Lamprianidou, T. Papadopoulos, G. Kryonidis, G. Papagiannis, A. Bouhouras
{"title":"Impact of Data-Driven Modelling Approaches on the Analysis of Active Distribution Networks","authors":"I. S. Lamprianidou, T. Papadopoulos, G. Kryonidis, G. Papagiannis, A. Bouhouras","doi":"10.1109/UPEC.2019.8893489","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893489","url":null,"abstract":"Scope of this paper is to investigate the effect of different load and distributed generation (photovoltaic systems and wind generators) modelling approaches for the steady-state analysis of distribution networks and the development of ancillary services by system operators. Specifically, five different modelling approaches are considered, based on different assumptions. The power flow problem is solved by applying the examined models to the 33-bus benchmark distribution network and the derived results are statistically analyzed. The accuracy, reliability and performance of the models is evaluated in terms of the calculated voltages, power losses and computational burden.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"69 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":"76306972","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
Numerical modelling of electrical contacts and thermal effect on them 电触点数值模拟及其热效应
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893559
M. Păunescu, F. Dragan, D. Micu, R. Iusan
{"title":"Numerical modelling of electrical contacts and thermal effect on them","authors":"M. Păunescu, F. Dragan, D. Micu, R. Iusan","doi":"10.1109/UPEC.2019.8893559","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893559","url":null,"abstract":"This article studies the effects of the electrical arc on the electrical contacts situated in the automated fuse, where the thermal effect appears. A simulation of electrical contacts using Solidworks and Comsol with a comparison to the practical results has been carried out","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"125 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":"74687200","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
Reliability Analysis of DC Distribution Grids 直流配电网可靠性分析
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893614
Raphael Bleilevens, Jens Priebe, Niklas Wehbring, A. Moser
{"title":"Reliability Analysis of DC Distribution Grids","authors":"Raphael Bleilevens, Jens Priebe, Niklas Wehbring, A. Moser","doi":"10.1109/UPEC.2019.8893614","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893614","url":null,"abstract":"DC distribution grids are subject of current research. One important aspect of research is to derive recommendations regarding a reasonable DC distribution grid design. Until today, recommendations regarding the structural design of medium voltage DC grids are available, but no recommendations regarding the reasonable DC grid concepts for DC distribution grids are derived. Due to that reason this paper derives recommendations regarding the reasonable DC grid concepts for DC distribution grids. Therefore, reliability analyses of one exemplary, realistic MVDC grid and one exemplary LVDC grid are conducted for different DC grid concepts. The reliability analyses show that the monopolar DC grid concepts are to be recommended for cable based DC distribution grids.","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":"81944719","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
Reliability Issues Caused By The Retirement Of Large Thermal Generation Facilities: An Irish Case Study 大型火力发电设施退役引起的可靠性问题:爱尔兰案例研究
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893641
K. Lawson, Jane Courtney
{"title":"Reliability Issues Caused By The Retirement Of Large Thermal Generation Facilities: An Irish Case Study","authors":"K. Lawson, Jane Courtney","doi":"10.1109/UPEC.2019.8893641","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893641","url":null,"abstract":"Like all developed countries Ireland faces increasing pressure to reduce their carbon footprint. Part of the governments plans include the scaling back of fossil fuel generation facilities and increasing renewable resources. Moneypoint is Irelands only coal fired generation station. In 2025 Moneypoint is due to reach the end of its life cycle. At this point the Irish government will have to make a decission on the future of the generation facility. Currently Moneypoint is responsible for the generation of approximately 10 % of Irelands energy needs.In this paper, the removal of Moneypoint from the Irish generation portfolio will be investigated. A series of simulations have been completed using historic demand and generation data. An initial assessment of the system was completed to verify the assessment technique. All three Moneypoint generation units were then removed and the relibaility of the system dropped dramatically. From this point assessments were completed to determine the quantity of wind generation that would be needed to bring the system back to a stable level. The assessments completed indicate that in 2025 an additional 3000 MW of wind generation will be needed if Moneypoint is removed from the generation portfolio of the country.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"47 5 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":"79458330","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
Experimental study of an earth to air heat exchanger used by an energy efficient building 节能建筑用地空气热交换器的实验研究
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893581
G. Iordache, C. Ionescu, H. Necula
{"title":"Experimental study of an earth to air heat exchanger used by an energy efficient building","authors":"G. Iordache, C. Ionescu, H. Necula","doi":"10.1109/UPEC.2019.8893581","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893581","url":null,"abstract":"The paper presents the results of an experimental study carried out for an earth-to-air heat exchanger included in the ventilation system of an energy efficient house. Experimental data are used to characterize the energy efficiency and to emphasize the contributions of the geothermal system to the building heating.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"125 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":"79518519","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
Performance Evaluation of a Partially Shaded PV cell with Different Bus Bars Configurations 不同母线结构的部分遮阳光伏电池性能评价
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893437
G. Seritan, S. Grigorescu, B. Enache, F. Argatu, Felix Constantin Adochiei, Teodor Icleanu
{"title":"Performance Evaluation of a Partially Shaded PV cell with Different Bus Bars Configurations","authors":"G. Seritan, S. Grigorescu, B. Enache, F. Argatu, Felix Constantin Adochiei, Teodor Icleanu","doi":"10.1109/UPEC.2019.8893437","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893437","url":null,"abstract":"Photovoltaic (PV) systems are facing many problems, most of them being related to environmental conditions. Among these, the partial shading, which impacts the maximum power generation capability is one of the most common ones and needs attention immediately. Some classic approaches to this problem involve: different array configuration, reconfiguration strategies, complex maximum power point tracking (MPPT) techniques, etc. In this paper we focus on the influence of the partial shading conditions over different types of cells. For this we consider the most common cell with 3 bus bars (BB) as the reference and study the performance of new types of cells with 4 BB and 5 BB. The starting point of the study is the two-diode model of the PV cell which is subjected to different shadow patterns.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"61 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":"85111604","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
Impact of Loss of Generation on Bus Voltage Frequency and RoCoF 发电损耗对母线电压、频率和RoCoF的影响
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893605
Damien Doheny, M. Conlon
{"title":"Impact of Loss of Generation on Bus Voltage Frequency and RoCoF","authors":"Damien Doheny, M. Conlon","doi":"10.1109/UPEC.2019.8893605","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893605","url":null,"abstract":"This study investigates how the loss of a generator impacts bus voltage RoCoF post-disturbance. The results show that the fastest bus voltage RoCoFs will occur close to generators impacted the most by the disturbance but this may not be the closest generator to the disturbance. The study also demonstrates a simple method that can be used to identify the generator that will be impacted most after a disturbance and hence the network location that will experience the fastest RoCoF.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"9 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":"80788233","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
Smart home automation with MQTT 智能家居自动化与MQTT
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893617
Andrei Cornel - Cristian, Tudor Gabriel, Mădălina Arhip-Călin, Alexandru Zamfirescu
{"title":"Smart home automation with MQTT","authors":"Andrei Cornel - Cristian, Tudor Gabriel, Mădălina Arhip-Călin, Alexandru Zamfirescu","doi":"10.1109/UPEC.2019.8893617","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893617","url":null,"abstract":"This paper aims to investigate the main advantages brought by Message Queuing Telemetry Transport (MQTT) protocol which is used by Internet of Things (IoT) devices. In addition to the advantages brought by the MQTT protocol in the smart grid environment we will also analyze the challenges and limitations that are introduced by it and were it should be adopted in the current smart grid. As a study case for this paper the practical implementation of MQTT in a smart home automation system will be presented.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"53 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":"83410508","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: 13
An I2C and Ethernet based open-source solution for home automation in the IoT context 一个基于I2C和以太网的开源解决方案，用于物联网环境下的家庭自动化
2019 54th International Universities Power Engineering Conference (UPEC) Pub Date : 2019-09-01 DOI: 10.1109/UPEC.2019.8893583
L. Pintilie, T. Pop, Ioana-Cornelia Gros, Adrian Mihai Iuoras
{"title":"An I2C and Ethernet based open-source solution for home automation in the IoT context","authors":"L. Pintilie, T. Pop, Ioana-Cornelia Gros, Adrian Mihai Iuoras","doi":"10.1109/UPEC.2019.8893583","DOIUrl":"https://doi.org/10.1109/UPEC.2019.8893583","url":null,"abstract":"This paper presents a solution for a custom home automation application, with emphasis on its advantages: open-source system – it may be reprogrammed by the user, modularity – integrated IC’s with specific tasks, and Internet of Things (IoT) based context – web server access. The proposed system is implemented based on a development platform, with embedded microprocessor that, due to its OS, allows the management of the tasks needed for this application. The Ethernet based system give the user the opportunity of managing and controlling the application through a web page user interface. The hardware implementation brings out also the utility of I2C communication protocol for the used components. The novelty of the subject is not based on the interfaced components, but in combining the communication protocols and the software tools in order to obtain a reconfigurable, open-source, custom application.","PeriodicalId":6670,"journal":{"name":"2019 54th International Universities Power Engineering Conference (UPEC)","volume":"413 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":"81183992","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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