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2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)最新文献

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Setting strategy of a SVM regressor for locating single phase faults in power distribution systems 配电系统单相故障定位的SVM回归量设置策略
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762976
E. Correa-Tapasco, S. Pérez-Londoño, J. Mora-Flórez
{"title":"Setting strategy of a SVM regressor for locating single phase faults in power distribution systems","authors":"E. Correa-Tapasco, S. Pérez-Londoño, J. Mora-Flórez","doi":"10.1109/TDC-LA.2010.5762976","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762976","url":null,"abstract":"In this paper, a regression technique as the support vector machines (SVM) configured using an optimization technique as the Chu Beasley Genetic Algorithm (CBGA) is proposed to develop a fault location method. As result, a strategy is proposed to relate a set of descriptors obtained from single end measurements of voltage and current (input), to the fault location (output), in a classical regression task. The developed strategy is tested in the selection of the best calibration parameters of a single phase SVM based fault locator where an average error of 5.278% is then obtained. According to the results, the proposed methodology could be applied successfully in power distribution systems.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132243528","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
The X Factor and its economic and technical significance 《X音素》及其经济和技术意义
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762971
T. S. Nogueira, H. Arango, J. D. de Abreu, B. Bonatto, C. Tahan
{"title":"The X Factor and its economic and technical significance","authors":"T. S. Nogueira, H. Arango, J. D. de Abreu, B. Bonatto, C. Tahan","doi":"10.1109/TDC-LA.2010.5762971","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762971","url":null,"abstract":"This paper aims to determine regulatory tariffs using a Market Model in order to assess the profits arising either from technical innovation or management rationalization, in a balanced fashion among consumers and distribution companies, guaranteeing appropriate incentives. It is estimated that the paper contribution to further improve public policies affecting the electricity sector.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127950076","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
Comparison of FACTSSTATCOM models for damping oscillations in power system due to small perturbations FACTSSTATCOM模型在电力系统小扰动下阻尼振荡的比较
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762923
A. Petean-Pina, P. Dearaujo
{"title":"Comparison of FACTSSTATCOM models for damping oscillations in power system due to small perturbations","authors":"A. Petean-Pina, P. Dearaujo","doi":"10.1109/TDC-LA.2010.5762923","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762923","url":null,"abstract":"This paper presents small-signal stability studies of a multimachine power system, considering Static Synchronous Compensators (STATCOM)and discussed control modes of the STATCOM. The Power Sensitivity Model(PSM)is used to represent the electric power system. The study is based on modal analysis and time domain simulations. The results obtained allow concluding that the STATCOM improves the stabilization in the electric power system.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128000745","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
The use of roadmaps for Smart Grid deployment - The practice 智能电网部署路线图的使用——实践
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762909
L. Varasquim, V. R. Oliveira
{"title":"The use of roadmaps for Smart Grid deployment - The practice","authors":"L. Varasquim, V. R. Oliveira","doi":"10.1109/TDC-LA.2010.5762909","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762909","url":null,"abstract":"The objective of this paper is to present a roadmap that has been used for guiding the development of Smart Grid architecture in electricity distribution companies, considering KEMA's experiences around the world and, in particular, Brazil. Initially, we review technologies typically involved in a smart grid with a special focus on smart meters and electrical network automation, as well as the necessary infrastructure to facilitate this implementation, including telecommunications systems, information technology, and cyber security. Then, we present projected costs and benefits, with a broad overview of each of these areas. The feasibility study for the deployment of a smart grid system will typically identify and quantify the benefits for all stakeholders, namely industry, regulators, shareholders, customers, government, society and technology providers. Using this information, and based on real projects led by KEMA, the paper outlines and identifies major benefits, with an objective analysis of the results achieved to date, as well as the challenges and barriers faced in each project. Finally, the paper emphasizes that in order to ensure a reliable energy supply to fast growing areas like Brazil—areas in need of energy from renewable sources, more efficient use of equipment, and assimilation of healthier habits of consumption—the use of smart meters and smart grid is a desirable path to follow. However, the big challenge lies in proving achievable benefits, and one of the best ways to demonstrate these benefits is through the test of the technologies in pilot projects.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":" 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113951341","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
Ancillary services definitions, markets and practices in the world 全球辅助服务的定义、市场和实践
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762857
Ali M. Pirbazari
{"title":"Ancillary services definitions, markets and practices in the world","authors":"Ali M. Pirbazari","doi":"10.1109/TDC-LA.2010.5762857","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762857","url":null,"abstract":"Ancillary services are some operational reserved services procured by the Transmission System Operator (TSO) for keeping a balance between supply and demand, stabilizing the transmission system and maintaining the power quality on an economical basis in any competitive electricity market environment. This paper discusses different types of ancillary services and their characteristics and challenges in the power market in order to find an efficient combination of ancillary services with the least reservation cost that secures reliable transmission system operation. An overview of practical experiences regarding performance of ancillary services in several competitive markets in the Europe, Australia and New Zealand will be discussed. Further, wind power as a disputable ancillary service will be presented in brief. In addition, some efficient proposals for revising the design and implementation of those markets will be mentioned in conclusions.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128356557","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: 39
Natural ester fluid: The transformer design perspective 天然酯流体:变压器设计的视角
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762902
T. Marchesan, A. Fanchin
{"title":"Natural ester fluid: The transformer design perspective","authors":"T. Marchesan, A. Fanchin","doi":"10.1109/TDC-LA.2010.5762902","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762902","url":null,"abstract":"This paper presents the perspective of employ natural ester fluid to high voltage and high power transformers. Some studies that have been done in the literature about the dielectric characteristics of natural ester fluid point to some differences, mainly in streamer propagation and long gap distance tests, when compared to mineral oil. However, all of the tests previous done, in this issue, were based on laboratory controlled conditions. This study presents the experimental results for two prototype power transformers in the voltage class of 69 kV and 245 kV, manufactured and electrically stressed to their limits in natural ester fluid. The results address to some differences in the dielectric characteristics of natural ester fluid, mainly in the presence of non-uniform electric field and long gap distances.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"32 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129669074","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: 11
Device to limit Transient Recovery Voltage 限制瞬态恢复电压的装置
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762852
Wilker V. S. Azevedo, W. Neves, D. Fernandes, B. A. Souza, R. Soares
{"title":"Device to limit Transient Recovery Voltage","authors":"Wilker V. S. Azevedo, W. Neves, D. Fernandes, B. A. Souza, R. Soares","doi":"10.1109/TDC-LA.2010.5762852","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762852","url":null,"abstract":"This paper summarizes the main results about design and evaluation of a device to reduce Transient Recovery Voltage (TRV) magnitude in medium voltage switching equipments. Zinc Oxide (ZnO) devices are modeled in an Electromagnetic Transients Program (EMTP), being applied as an alternative to limit TRV peaks in circuit breakers and reclosers of 15 kV and 72.5 kV voltage class. The assessment of device effectiveness in elimination of three-phase ungrounded and kilometric faults is performed with the purpose of providing information for testing and future deployment. Laboratory conditions are reproduced digitally describing the absorved energy by the device as a function of fault current and TRV frequency. The most severe cases allow the use of ZnO varistors commercially available, giving feasibility to achieve limiter devices. Results obtained in studies presented good agreement, showing that operations preliminarily qualified as unsafe can become permissive. Financial support usually used to replace equipment by another with higher voltage class can be reduced.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125911784","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
Records from DFRs vs. Records from microprocessor-based relays DFRs记录与基于微处理器的继电器记录
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762949
H. Davila
{"title":"Records from DFRs vs. Records from microprocessor-based relays","authors":"H. Davila","doi":"10.1109/TDC-LA.2010.5762949","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762949","url":null,"abstract":"Today the use of digital IEDs for protection, monitoring and recording systems brings questions about the management and analysis of fault and swing records. Basic questions include: “what is the difference in between records captured from DFRs versus relays?”, “do I need a DFR in my system, and why?”, and “is my fault information good enough for complete fault and disturbance evaluation?”. Quality recording data is available, and needs the proper tools to ensure that timely power system disturbance analysis can save money, avoid blackouts and result in a more reliable system. This paper overviews the importance of record data, and explores how it can benefit power system performance. We focus on the importance of record length, record resolution, the presence of harmonics, sample rates, and the ability to record in multiple points of the plant (enabling comparison of data by one centralized device, rather than independent analysis). We will show the difference in triggering methods, length of the pre- and post-trigger data, sampling rates, wide area event monitoring and cross triggering.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117273780","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
Technical solutions for harmonic resonance at MV: Relocatable capacitor bank technique 中压谐波谐振的技术解决方案:可重新定位电容器组技术
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762867
G. M. Minamizaki, S. U. Ahn, G. L. Torres, L. E. Borges, N. Jesus
{"title":"Technical solutions for harmonic resonance at MV: Relocatable capacitor bank technique","authors":"G. M. Minamizaki, S. U. Ahn, G. L. Torres, L. E. Borges, N. Jesus","doi":"10.1109/TDC-LA.2010.5762867","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762867","url":null,"abstract":"Capacitor banks are installed to compensate the reactive energy demanded by the local loads or feeder reactance, in order to adequate the voltage and technical losses. Although those benefits of installing capacitor banks in feeders are incontestable, the engineers should consider the harmonic resonance effects and the possibility of this resonance to increase the voltage distortion to levels above of the acceptable limits. In fact, the problems related to harmonics are spreading on MV systems due to the increasing quantity of disturbing loads. This work presents one case under survey at CPFL Paulista, where a feeder supplies several non-linear loads in two plants and three automatic capacitor banks.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116091416","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
Introduction of the Mechanically Switched Capacitors (MSCs) application on Power Transmission Systems 机械开关电容器(MSCs)在电力传输系统中的应用
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762921
A. D. de Oliveira, A. Pereira
{"title":"Introduction of the Mechanically Switched Capacitors (MSCs) application on Power Transmission Systems","authors":"A. D. de Oliveira, A. Pereira","doi":"10.1109/TDC-LA.2010.5762921","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762921","url":null,"abstract":"Power Transmission Systems have predominantly inductive loads, so that the systems themselves must supply the reactive power consumed. The most practical and efficient way for the utility to supply the reactive power demanded is through the installation of Mechanically Switched Capacitors (MSCs), more common know as shunt capacitor banks. The installation of MSCs brings benefits concerning the reduction of system charging and electrical losses, system capacity release and also improvements in the power factor. The main purpose of this work is to present the introduction of the MSCs application on Power Transmission Systems. This introduction will be realized simulating power system conditions using the ATP (Alternative Transient Program) tool, analyzing the MSC energization, dimensioning and capacitors units' lifetime, aiming to be a knowledge support paper for future applications. The final conclusion of the work presents the importance of the Mechanically Switched Capacitors (MSCs) to a transmission system and a complete introduction of the main aspects for the equipments dimensioning and energization, contributing for the quality of the power transmission system.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133918889","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
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