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2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America最新文献

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Use of the Shunts Detecting Equipment for the Identification of Illegal Power Outlets 使用分流检测设备识别非法电源插座
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311412
J. L. Parra, E. Calderon
{"title":"Use of the Shunts Detecting Equipment for the Identification of Illegal Power Outlets","authors":"J. L. Parra, E. Calderon","doi":"10.1109/TDCLA.2006.311412","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311412","url":null,"abstract":"C.A. Electricidad de Valencia (ELEVAL) has 116,000 customers of whom 43% are served in underground mains, the majority of residential type. The company has been able to inspect more than 50% of its underground mains, finding a great incidence or electrical fraud by means of unauthorized connections to the energy main, hidden by means of perforations in sidewalks and walls. To locate these clandestine derivations techniques and strategies have been implemented to speed the search, however it has been necessary to implement specialized tools to make the task easier. The lines detector has been one of the most effective tools used in the identification of illegal connections, managing to reduce in more than 50 %, the time of detection and, in more than 80% the cost due to this concept. A comparison of the results of the use of this equipment is shown","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123868577","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
Reduction of Non-Technical Losses by Modernization and Updating of Measurement Systems 通过测量系统的现代化和更新减少非技术损失
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311590
R. Alves, P. Casanova, E. Quirogas, O. Ravelo, W. Gimenez
{"title":"Reduction of Non-Technical Losses by Modernization and Updating of Measurement Systems","authors":"R. Alves, P. Casanova, E. Quirogas, O. Ravelo, W. Gimenez","doi":"10.1109/TDCLA.2006.311590","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311590","url":null,"abstract":"The energy distribution companies are strongly affected by non-technical losses due to fraud, imprecision of the measurement, reading errors or bad management of the data collection systems. In this work we analyze this problem. As solutions, we propose the installation of burglar alarm systems, remote connection and reconnection systems, conductor protections to make them inviolable, electronic devices to reduce losses by bad measurement, data collection improvement systems and others. We suggest economic solutions easy to implant. In order to implement these solutions so that they have the desired effect, it is necessary to develop a suitable logistic of installation, which it is considered to reduce non-technical losses between 40%-60% depending on the economical capacity of the company. A program that allows the user to take the control of the orders automatically elaborates the invoicing and manages productivity of the installation and measure crews","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126531732","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: 25
Optimal Location of Power Transmission Lines Towers Using Reformulated Dynamic Programming 基于改进动态规划的输电线路塔的最优选址
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311568
F. Viera, J. Toledo
{"title":"Optimal Location of Power Transmission Lines Towers Using Reformulated Dynamic Programming","authors":"F. Viera, J. Toledo","doi":"10.1109/TDCLA.2006.311568","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311568","url":null,"abstract":"In this paper the dynamic programming application on optimal tower spotting location such as is formulated in (Mitra, G and Wolfende, 1968) is reformulated. Results based on this reformulation and corresponding algorithm and computer program are presented. Dynamic programming consist in segmenting the route profile, defining sites, and finding optimal transmission line from start of profile to each site progressively. Stages are the sites and the optimal policy will be the line of minimal cost thru each heights of tower that support conductor. Reformulation refers to redefine optimal policy to represent adequately constrains determined by 3 towers (wind span, load span, distance to mass)","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128588353","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
Electromagnetic Environment Measurement under Steady-State Conditions in Utility Substations 变电站稳态条件下电磁环境测量
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311511
C. de Abreu Silveira, C. A. Da Costa, R. da Costa e Silva, L.R. Soares, J.C.P. Guimaraes
{"title":"Electromagnetic Environment Measurement under Steady-State Conditions in Utility Substations","authors":"C. de Abreu Silveira, C. A. Da Costa, R. da Costa e Silva, L.R. Soares, J.C.P. Guimaraes","doi":"10.1109/TDCLA.2006.311511","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311511","url":null,"abstract":"Electrical power substations use to be characterized as powerful electromagnetic environments. Electric and magnetic fields are generated during all operational conditions, even under steady-state system operation and can damage installed sensitive electronic devices. In this paper a pilot-substation is evaluated in order to verify how electromagnetic fields are distributed inside its installation. Steady state electromagnetic fields are evaluated. Grounding integrity is verified and high frequency electromagnetic field generated by a radio-base station is measured, in order to characterize electromagnetic environment inside a utility substation. Electromagnetic compatibility standards and procedures are referred. Significant RF effects are detected and commented under EMC point of view","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"2005 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130051492","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
Fault Location in Unbalanced DG Systems using the Positive Sequence Apparent Impedance 基于正序视阻抗的不平衡DG系统故障定位
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311611
Arturo SumanBretas, Hartstein Salim
{"title":"Fault Location in Unbalanced DG Systems using the Positive Sequence Apparent Impedance","authors":"Arturo SumanBretas, Hartstein Salim","doi":"10.1109/TDCLA.2006.311611","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311611","url":null,"abstract":"The fault location techniques for power distribution systems (PDS) in use nowadays assume that the system has a radial power flow. Since new technologies in development, such as the distributed generation (DG), change this characteristic, it is necessary to adjust the already existing methods for fault location, since they show to be inefficient. Moreover, the unbalance between phases due to different loading at laterals is another issue that interferes in the fault location methodologies. In this paper, it is presented a new fault location method based on positive sequence apparent impedance. Computational simulations were made and the method was tested in two systems and compared with other existing fault location techniques in order to validate it. The basic characteristics of the method, the new algorithm and a variety of case studies are presented in the paper in order to illustrate its efficiency in unbalanced distribution systems with DG","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121100740","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: 48
Georeferential Video for Located Access Road and Stringing Tension Equipment Places to Install 1366 km OPGW Cables in Existing Transmission Lines 现有输电线路1366公里OPGW电缆敷设地点接入道路及拉紧设备地理参考视频
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311555
C. Alamo, J. Pardinas
{"title":"Georeferential Video for Located Access Road and Stringing Tension Equipment Places to Install 1366 km OPGW Cables in Existing Transmission Lines","authors":"C. Alamo, J. Pardinas","doi":"10.1109/TDCLA.2006.311555","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311555","url":null,"abstract":"One of the most important activities of predictive maintenance of the transmission lines is the periodical inspection of each component (insulators, conductors, structures and others), besides the bio-physical environmental between them. This activity requires high efforts of the technical resources and also an important amount of money. CVG EDELCA, the big utility company in Venezuela, has been operating 2100 km of transmission lines in 765 kV, more than 3200 km in 400 kV, also 500 km in 230 kV and 115 kV. All of them have corridors that involve a very extensive areas that must be monitoring and the information obtain about the monitoring activity must be actual and available in real time and adequate formats for the good management decisions. Understanding the advantage of the new technologies in the multimedia area, CVG EDELCA since 2000 has been working with this technology in the transmission lines engineering designs (route study, survey, etc). Recently CVG EDELCA has been using this technology for preview ground wire replace studies for new optical ground wire (OPGW) in transmission line in operations, this experience is describe in this report","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125489044","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
A Model to Remarry the Active/Reactive Power Dispatches in Competitive Environment and Active/Reactive Marginal Prices Computation 竞争环境下有功/无功调度与有功/无功边际电价计算的再结合模型
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311485
M. Gomes, J. Saraiva
{"title":"A Model to Remarry the Active/Reactive Power Dispatches in Competitive Environment and Active/Reactive Marginal Prices Computation","authors":"M. Gomes, J. Saraiva","doi":"10.1109/TDCLA.2006.311485","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311485","url":null,"abstract":"This paper describes a mathematical formulation for the active/reactive dispatch in electricity markets, including a number of issues present in market models used in several countries. Traditional market approaches are implemented considering a sequence of activities namely in terms of active power dispatch and ancillary services. However, these two problems are coupled in the sense that dispatching reactive power is not independent from the active power scheduling of generators. The proposed model admits that it is known the purely economic pool dispatch together with bilateral contracts and then it aims at dispatching reactive resources considering voltage and branch limit constraints and constraints reflecting the alternator capability curve. As a sub-result, this formulation also outputs nodal active and reactive marginal prices that can be useful to build tariff schemes. Finally, the paper includes a case study based on the IEEE 30 bus/41 branch system to illustrate the obtained results and their interest for electricity markets","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123995958","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
Regulatory Mechanisms to Mitigate the Vulnerability of Power Systems to Blackouts 缓解电力系统停电脆弱性的监管机制
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311558
O. P. Veloza, R. Céspedes
{"title":"Regulatory Mechanisms to Mitigate the Vulnerability of Power Systems to Blackouts","authors":"O. P. Veloza, R. Céspedes","doi":"10.1109/TDCLA.2006.311558","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311558","url":null,"abstract":"The consequences of big blackouts that have recently affected electric systems worldwide motivated to carry out a study in order to determine the vulnerability of electric systems to this type of incidents, and to establish the applicable actions to maintain a reliable operation. The study presented in this paper is based on the lessons learned about prevention and management from the most representative incidents worldwide, as well as from the regulations governing reliability and relevant aspects in some countries. The analysis of international experiences is centered on the revision of nine major incidents that occurred in the world during the last decade, their comparison and classification, the recognition of the conditions previous to the blackouts and the available reaction times, as well as the verification of the causes of said incidents. The most important subjects about regulatory mechanisms to be emphasized to avoid the occurrence or minimizing the impact of blackouts are identified and a revision about those topics in some representative international regulations is carried out. The paper concludes by establishing main deficiencies found in regulations related to the vulnerability of the power systems and suggesting concrete regulatory actions that may solve the deficiencies found","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"46 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126233198","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
Applications of Optical Current and Voltage Sensors in High-Voltage Systems 光学电流和电压传感器在高压系统中的应用
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311482
F. Rahmatian, A. Ortega
{"title":"Applications of Optical Current and Voltage Sensors in High-Voltage Systems","authors":"F. Rahmatian, A. Ortega","doi":"10.1109/TDCLA.2006.311482","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311482","url":null,"abstract":"Various applications of optical current and voltage sensors are explored. Wide bandwidth, linearity, high accuracy, and light weight of these sensors make this technology suitable for numerous applications: high-accuracy wide dynamic range revenue metering, regular protection applications, capacitor bank unbalance protection (low ratio CTs), current measurement in HVDC systems, and power quality monitoring including measurement of harmonics near static VAR compensators and fast transient measurements. The fiber optic CT with a unique flexible head packaging (rope-shaped wrap-around sensor head) has novel application in generator monitoring and protection. Due to their light weight and ease of deployment, both the flexible-head optical CT and the optical VT are great tools as portable calibration systems for live in-situ calibration and monitoring applications","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127714818","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: 36
Grounding Practices - Considerations for Oil Plants 接地规范。油厂的考虑
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311455
C. Gómez, G. S. Salloum
{"title":"Grounding Practices - Considerations for Oil Plants","authors":"C. Gómez, G. S. Salloum","doi":"10.1109/TDCLA.2006.311455","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311455","url":null,"abstract":"This paper present a comparative review of previous oil plants grounding papers for establishing the theoretical and methodological requirements. Based on particular characteristics, trend and evolution of these grounding systems is in the scope to establish a practical design guide using the experience in similar projects. It is shown the impact of the modifications in the existing electrical systems due to the improvements and new grounding design practices. Problems areas associated with each type of grounding are identified and solutions are discussed. A practical method and recommendation for the design engineer is developed","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129083791","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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