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2012 Electric Power Quality and Supply Reliability最新文献

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Analysis of protection and control functions of low voltage part of substation for smart grid applications 智能电网中变电站低压部分保护控制功能分析
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256243
M. Magi, K. Peterson, E. Pettai
{"title":"Analysis of protection and control functions of low voltage part of substation for smart grid applications","authors":"M. Magi, K. Peterson, E. Pettai","doi":"10.1109/PQ.2012.6256243","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256243","url":null,"abstract":"This paper describes essential functions of prosumer's electric equipment (sources, resources) that can be interconnected to form microgrids for smart grid applications that are integrated with utility networks. Focus is on the protection and control functions of low voltage part of a substation. Functions of an experimental microgrid application were simulated with MATLAB. The aim of the modelling and simulation is to define and optimize parameters and functions that are important for automated energy exchange through a substation between energy storage, generators, loads, and utility networks. Sample control topologies and program modules of a substation controller are developed.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131813518","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: 5
Interference of touch dimmer lamps due to PLC and other high frequency signals 触控调光灯受PLC等高频信号干扰
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256241
M. Pikkarainen, S. Vehmasvaara, B. A. Siddiqui, P. Pakonen, P. Verho
{"title":"Interference of touch dimmer lamps due to PLC and other high frequency signals","authors":"M. Pikkarainen, S. Vehmasvaara, B. A. Siddiqui, P. Pakonen, P. Verho","doi":"10.1109/PQ.2012.6256241","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256241","url":null,"abstract":"The interference of touch dimmer lamps due to PLC signals has found to be a common interference problem in Finland after the installation of smart meters that use PLC. One reason for this is the lack of equipment immunity standards for voltage frequencies below 150 kHz. This paper will study controlled discontinuous high frequency signal burst effect to two touch dimmer lamps in the laboratory environment. Both lamps were disturbed due to these signals. Based on the results it is possible that interference problems can occur even if the distance between lamp and the PLC device is close to 100 m. Paper will also show the measurement results on how one plug-in type filter improve interference situation. Results show that the amplitude of the signal burst will decrease at lamp side but filter also affects signal levels at mains side.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130483431","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: 12
Metamodel for permanent magnet synchronous motor with outer rotor 外转子永磁同步电动机的元模型
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256191
J. Dirba, L. Lavrinovicha, Gints Jēkabsons, S. Vītoliņa
{"title":"Metamodel for permanent magnet synchronous motor with outer rotor","authors":"J. Dirba, L. Lavrinovicha, Gints Jēkabsons, S. Vītoliņa","doi":"10.1109/PQ.2012.6256191","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256191","url":null,"abstract":"The paper presents the description of the meta-model synthesis method based on numerical calculations of magnetic field of an electric machine. The method of finite elements is applied for numerical calculations of magnetic field, and metamodelling method Adaptive Basis Function Construction is used for generating corresponding polynomial. Proposed metamodel allows analyzing how geometric dimensions and physical properties of permanent magnets, and air gap size impact on the value of the first harmonic of the main magnetic flux in the air gap of the permanent magnet synchronous motor with outer rotor.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115821726","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
Assessment of different power line types' life-time costs in distribution network from reliability point of view 基于可靠性的配电网不同类型电力线寿命成本评估
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256220
A. Lvov, I. Priedite-Razgale, J. Rozenkrons, V. Krēsliņš
{"title":"Assessment of different power line types' life-time costs in distribution network from reliability point of view","authors":"A. Lvov, I. Priedite-Razgale, J. Rozenkrons, V. Krēsliņš","doi":"10.1109/PQ.2012.6256220","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256220","url":null,"abstract":"The paper presents developed approach for assessment of middle voltage network life-time costs (from utility point of view) related with usage of different type power lines. Proposed approach takes into account construction, maintenance and fault elimination costs depending on each power line type (overhead line, isolated wire overhead line, high overhead line or underground cable line) features. Paper also includes description of developed approach for estimation of customer costs of reliability that takes into account time-variable loads and outage costs. The developed approaches were implemented in case studies using information about structure of real distribution network used in Latvia. Results obtained from the calculations give well-grounded base for distribution network exploiting engineers when trying to find network's optimal reliability level by replacing overhead lines by other types of power lines as one of network reliability centered maintenance and reconstruction activities.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126662660","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: 5
Impact of distributed generation facilities on an urban network 分布式发电设施对城市网络的影响
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256221
A. Novitskiy, H. Schau
{"title":"Impact of distributed generation facilities on an urban network","authors":"A. Novitskiy, H. Schau","doi":"10.1109/PQ.2012.6256221","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256221","url":null,"abstract":"Many of modern distributed generation plants are based on photovoltaic cells using power electronic units for energy transmission into the electrical network. This increases the emission of high-frequency currents into the network and affects the operation of power line communication devices and energy meters. A real LV network in Germany was investigated by the authors with the purpose to estimate the actual situation in the network with respect to high-frequency distortion and to characterize the possible impact of the presented distributed generation facilities on the network operation.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129964505","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: 9
Power quality of supply characterization in the Portuguese Electricity Transmission Grid 葡萄牙输电网供电质量表征
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256207
A. Tavares, L. C. Pinto
{"title":"Power quality of supply characterization in the Portuguese Electricity Transmission Grid","authors":"A. Tavares, L. C. Pinto","doi":"10.1109/PQ.2012.6256207","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256207","url":null,"abstract":"REN - Rede Eléctrica Nacional S.A., as the concessionaire of the Portuguese National Electricity Transmission Grid (RNT), has an important role in electrical energy quality to the final customer. Continuity of supply general/individual indicators and parameters are defined in accordance to the regulatory legislation stated in the Regulamento da Qualidade de Serviço de Portugal (RQS). Voltage quality assessment is done by REN and is based on a monitoring plan that includes voltage characteristics measurement at selected delivery and internal points. A study was conducted in order to characterize all the bus bars that were monitored between 2008 and 2010. It was used a simple methodology based on labeling the power quality. On this paper, it will be shown this methodology and the results obtained in characterizing the delivery points of the Portuguese Electricity Transmission Grid for the period 2008-2010, as well as other RENs quality of supply results in the last years.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128417131","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: 5
Contemporary and future aspects of cost effective power quality monitoring — Position paper of CIGRE WG C4.112 具有成本效益的电能质量监测的当代和未来方面- CIGRE WG C4.112的立场文件
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256208
Jan Meyer, J. Kilter, B. Howe, F. Zavoda, L. Tenti, J. Gordon, J. Milanović
{"title":"Contemporary and future aspects of cost effective power quality monitoring — Position paper of CIGRE WG C4.112","authors":"Jan Meyer, J. Kilter, B. Howe, F. Zavoda, L. Tenti, J. Gordon, J. Milanović","doi":"10.1109/PQ.2012.6256208","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256208","url":null,"abstract":"During the last decade the performance of power quality monitoring equipment has increased, while prices of monitors have continuously decreased. Due this trend network operators have more and more intensified their power quality measurement activities. The number of measured parameters and sites is growing continuously. At the same time these new opportunities cause power quality data management and analysis to become an increasing complex challenge. These new challenges will be addressed by the CIGRE working group C4.112 “Guidelines for Power quality monitoring — measurement locations, processing and presentation of data”, which was established in January 2011. The main intention of its work is the development of a coherent set of guidelines for power quality monitoring in existing and future power networks. Based on a clear identification of different objectives all design aspects for an efficient and cost effective power quality monitoring will be covered by the working group in a holistic way. The paper presents first results of the working group and is especially focused on the cost/benefit aspects of the design process of power quality monitoring systems. After a brief introduction the paper gives an overview of the objectives for power quality monitoring and the different aspects that has to be considered while designing a power quality monitoring system. Next the design aspects of larger monitoring systems are discussed in more detail. Some practical recommendations as well as first ideas of new approaches for future monitoring systems are given.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130545803","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: 10
Integral arc models at single phase-to-ground faults and special characteristics of arcing in power cable insulation 单相接地故障的整体电弧模型及电力电缆绝缘电弧的特殊特性
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256233
A. Shirkovets
{"title":"Integral arc models at single phase-to-ground faults and special characteristics of arcing in power cable insulation","authors":"A. Shirkovets","doi":"10.1109/PQ.2012.6256233","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256233","url":null,"abstract":"The paper presents the results of experimental investigations and calculations of arcing at ground faults in distribution networks up to 35 kV. It is shown that an additional active component in single phase-to-ground current caused by a high-voltage resistor connected to a neutral leads to the change of the following arcing ground fault parameters: voltage recovery rate on the faulty phase after arc quenching, conditions of arcing and arc quenching depending on the insulation material (mass-impregnated paper insulation, polymeric insulation), probability of restrikes. Special features of main stages of arcing ground fault are presented. Integral models of arcing based on conductivity, current and voltage functions for ablation controlled arcs in power cable insulation are proposed.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125563618","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: 6
Three-phase multilevel converter voltage quality bounds 三相多电平变换器电压质量界限
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256205
G. Mehlmann, A. Ruderman, G. Herold
{"title":"Three-phase multilevel converter voltage quality bounds","authors":"G. Mehlmann, A. Ruderman, G. Herold","doi":"10.1109/PQ.2012.6256205","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256205","url":null,"abstract":"Multilevel converters synthesize a staircase voltage waveform, resulting in a high voltage quality. Using a practical time domain approach, lower and upper bounds for voltage quality of three-phase multilevel converters are derived. The voltage quality bounds are introduced as closed-form analytical expressions for an arbitrary number of voltage levels and different modulation indices. They allow an analytical description of the behavior of multilevel converters. In comparison with PWM voltage quality, the lower and upper bounds may be useful for a fair classification of different switching methods and a first layout of multilevel converters.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"184 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123523100","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
Wet tests on naturally polluted glass and composite insulators 自然污染玻璃和复合绝缘体的湿试验
2012 Electric Power Quality and Supply Reliability Pub Date : 2012-06-11 DOI: 10.1109/PQ.2012.6256236
P. Taklaja, J. Niitsoo, I. Palu
{"title":"Wet tests on naturally polluted glass and composite insulators","authors":"P. Taklaja, J. Niitsoo, I. Palu","doi":"10.1109/PQ.2012.6256236","DOIUrl":"https://doi.org/10.1109/PQ.2012.6256236","url":null,"abstract":"The study examines what type of bird excrement contamination will lead to insulator's flashovers on the Estonian 110 kV overhead power lines. Wet tests made in laboratory with naturally contaminated glass and composite insulators show that traditional (insulator's surface) contamination will not lead to flashovers and therefore most likely the flashovers are caused by highly conductive bird excrement streamers. The tests also show that using corona rings at composite insulator's line end fittings, affects the occurring probability of partial discharge extent on wetted insulator.","PeriodicalId":185013,"journal":{"name":"2012 Electric Power Quality and Supply Reliability","volume":"467 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127541956","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
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