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

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Performance of the Low Frequency Automatic Load Rejection and Area Disconnection Systems of the Venezuelan Interconnected Electric Power System under off-nominal Conditions 非标称条件下委内瑞拉互联电力系统低频自动甩负荷和区域断开系统的性能
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311591
L. Villa
{"title":"Performance of the Low Frequency Automatic Load Rejection and Area Disconnection Systems of the Venezuelan Interconnected Electric Power System under off-nominal Conditions","authors":"L. Villa","doi":"10.1109/TDCLA.2006.311591","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311591","url":null,"abstract":"During the first months of 2003, the Venezuelan interconnected power system peak load fell more than 10 % below the maximum of 2002. Furthermore emergency conditions forced to operate at 59.9 Hz steady state frequency, 0.1 Hz below its nominal value. Because of this, it was necessary to check the correct performance of the automatic load rejection and area disconnection system","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":"115910044","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
Application of Fuzzy Markov in Calculating Reliability of Power Systems 模糊马尔可夫在电力系统可靠性计算中的应用
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311384
P. Binh, T. Khoa
{"title":"Application of Fuzzy Markov in Calculating Reliability of Power Systems","authors":"P. Binh, T. Khoa","doi":"10.1109/TDCLA.2006.311384","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311384","url":null,"abstract":"A power system has many components; each of them has three states: good, failure or maintenance. The state of the system is a combination of its components' state. Thus, the state of the system in every moment is the combination of the states of its components, and there will be 3n states of the system, where n is number of components. Markov model is very useful in calculating with large state space by using transition probability and initial value. In practice, sometimes we can not have the exact values of C, lambda, mup, muc but with some uncertainty about these values. This is quite common for the power system in developing country, where many system parameters are not normalized. This paper presents the combination fuzzy theory and Markov model. The model is very useful to calculate system's reliability. Using a-cut technique, the probability vector at moment t can be calculated and then the reliability curve of system will be built","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"23 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":"116876583","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
Evaluation Power Quality in Electrical Utilities Companies 电力公司电能质量评价
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311645
A. Larez, L.E. Pereyra
{"title":"Evaluation Power Quality in Electrical Utilities Companies","authors":"A. Larez, L.E. Pereyra","doi":"10.1109/TDCLA.2006.311645","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311645","url":null,"abstract":"The following investigation has the primary objective of developing an information system that allows processing data from electrical variables such as: voltage, quick fluctuation of voltage (flicker) and that rate of total distortion of voltage harmonics (THDV) in order to evaluate the quality of the electrical energy (power quality) of the electrical service companies. The data to be evaluated is product of different measurement taken on different municipalities. This system of information executes de data processing of the registers obtained on the measurement and compares them with the standard values indicated on the quality of the electrical distribution service standard N.C.S.D.E., also this research will help the Venezuelan Electrical Service companies to adequate their information systems in order to comply with the required on this standard, and avoid the sanctions by the regulation office. On the other hand, this system can be use by the facilities, the regulating office and the municipalities to supervise and inspect the records and compare them with the indicators of the N.C.S.D.E. which are: FEDT (equivalent frequency of voltage deviation), flicker (Pst) and the rate of total distortion of voltage harmonics (THDV). The system of information has a module for statistical data processing, this one allows you to calculate maximum and minimum values, average, the variance, the standard deviation as well as the frequency of every range of voltage","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"22 5 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":"115542575","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
A Methodology to Determine Electrical Energy Consumption in Street Lighting Systems 一种确定街道照明系统电能消耗的方法
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311403
G.M. Ereu, J. Mantilla
{"title":"A Methodology to Determine Electrical Energy Consumption in Street Lighting Systems","authors":"G.M. Ereu, J. Mantilla","doi":"10.1109/TDCLA.2006.311403","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311403","url":null,"abstract":"In 2005 a study was carried out with the aim of establishing the proper methodology to calculate the amount of energy consumed by the street lighting system of C.A. La Electricidad de Caracas (EDC). The study focused on a lamp's nominal power, the average loss in the ballast, the average loss due to lamp aging and the technical losses in the conductor as a result of the joule effect. Through this methodology, we determined that the amount of energy consumed in the EDC street lighting system was greater than the actual amount of energy that was being billed. As a result of this information, we were able to save 13.1 GWH/year (8.56% of the total energy that was being supplied to the street lighting system). This also had a positive impact on the overall billing for the area, at an almost negligible cost for EDC","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"3 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":"126913536","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: 8
Follow-up and Preventive Control of Non-Technical Losses of Energy in C.A. Electricidad de Valencia 巴伦西亚电力公司非技术能耗的跟踪与预防控制
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311381
J. Iglesias
{"title":"Follow-up and Preventive Control of Non-Technical Losses of Energy in C.A. Electricidad de Valencia","authors":"J. Iglesias","doi":"10.1109/TDCLA.2006.311381","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311381","url":null,"abstract":"Being in the presence of the increase of non-technical losses (NTL) at the end of the year 2003, C.A. Electricidad de Valencia (Eleval) designed and implanted new follow-up and control mechanisms that contributed to the reduction of the total losses of the company, that led to the reduction of total losses of the company in 8 percentage points in 2 years. Next, these procedures, called monitoring of energy losses by sectors, invoicing analysis, monitoring of customers with possible relapse, and monitoring of groups of transformers (energy totalizers) are described. Additionally, a brief description is made of the follow-up and control, based on the mechanisms mentioned before, as well as the information systems developed and put into practice by Eleval. Finally, the results and conclusions are shown, as a result of the successful experience obtained by the company, in this matter","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"31 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":"128098474","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
An Automatic System for Real-Time Supervision of the Transmission Limits of the Venezuelan Electric System 委内瑞拉电力系统传输限制实时监控的自动系统
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311604
E. Orea, H. Ortuño
{"title":"An Automatic System for Real-Time Supervision of the Transmission Limits of the Venezuelan Electric System","authors":"E. Orea, H. Ortuño","doi":"10.1109/TDCLA.2006.311604","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311604","url":null,"abstract":"This paper presents a software for real-time supervision of transfer limits in the Venezuelan interconnected power system, integrating real time calculations from the EMS with the off-line calculations derived from a transient stability study","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"28 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":"125953210","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
Back Spin Control in Progressive Cavity Pump for Oil Well 油井螺杆泵回旋控制
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311587
T. Ernst, F. Santiago, H. Schulz, F. Bustamante, J. Biternas, J. Borjas, B. Montilla, J. Molina, J. Bernard
{"title":"Back Spin Control in Progressive Cavity Pump for Oil Well","authors":"T. Ernst, F. Santiago, H. Schulz, F. Bustamante, J. Biternas, J. Borjas, B. Montilla, J. Molina, J. Bernard","doi":"10.1109/TDCLA.2006.311587","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311587","url":null,"abstract":"CVX operates their Boscan oil field just west of Maracaibo, Venezuela. There are more than 530 oil wells and one production method is the progressive cavity pump (PCP) applied to 168 oil wells. This production system runs a screw pump located in the well. The wells have an average depth of 7,000 feet. The PCP turns at 300 rpm and is connected to a reducing gear/belt box and a 60 hp AC induction motor at the surface. The motor is controlled by a variable speed AC drive (VSD). During momentary interruptions of the electrical power, the motor turns off. When the motor turns off the weight of the column of crude causes the motor to turn in the opposite direction. The motor will spin in the reverse direction until all the oil has fallen back down the production tube and the oil level in the production tube and the well are equal. This phenomenon is known as \"back spin\". In these wells the backspin time can be as long as 6 hours. The time spent during backspin and while waiting for the oil to get back to the surface (after restarting) is all lost production. In order to minimize lost production, it was necessary to led a team of technical people that involved manufacturers of the VSD, motor, reducing gear/belt box, and CVX. After several tests a solution was found that minimized lost production","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"41 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":"126549144","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
Control Design and Simulation of DSTATCOM with Energy Storage for Power Quality Improvements 基于储能的DSTATCOM控制设计与仿真
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311436
M. G. Molina, P. Mercado
{"title":"Control Design and Simulation of DSTATCOM with Energy Storage for Power Quality Improvements","authors":"M. G. Molina, P. Mercado","doi":"10.1109/TDCLA.2006.311436","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311436","url":null,"abstract":"This paper discusses the dynamic performance of a distribution static compensator (DSTATCOM) coupled with an energy storage system (ESS) for improving the power quality of distribution systems. The presented integrated DSTATCOM/ESS compensator is analyzed as a voltage controller, a power factor controller and an active power controller. Modeling and control approaches are proposed, including a detailed modeling of the DSTATCOM/ESS. The multi-level control technique proposed is based on the instantaneous power theory on the synchronous rotating dq reference frame. Validation of models and control schemes is carried out through simulations by using SimPower-Systems of MATLAB. The results obtained demonstrate the good performance of the multilevel controller as well as the benefits of its use in the distribution level power quality (PQ)","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"57 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":"123469323","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: 116
Optimal Solutions for the Venezuelan Unit Commitment Hydrothermal System 委内瑞拉单位承诺水热系统的最佳解决方案
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311518
C. Piemonti, J. Bermúdez, H. Khodr, Manuel Alvarez
{"title":"Optimal Solutions for the Venezuelan Unit Commitment Hydrothermal System","authors":"C. Piemonti, J. Bermúdez, H. Khodr, Manuel Alvarez","doi":"10.1109/TDCLA.2006.311518","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311518","url":null,"abstract":"This work is about different optimal solutions for the unit commitment problem in the Venezuelan hydrothermal power system, disregarding the transmission system. The centralized cost-based maximum net social benefit solution, the oligopoly solution and the unregulated monopoly solution are formulated and analyzed. The oligopoly is studied via Nash-Cournot equilibrium, obtained iteratively considering both price-maker and price-taker firms. The price-demand curves are created using a price-demand elasticity parameter. The hydro plants can be of the run-of-river type or can have a regulation period, like in the case of Guri. In latter case the future profit is represented by a fixed volume of water to be turbined in the day ahead. Since integer variable are necessary to simulate the shut-down, start-up process a mixed integer commercial programming application is employed","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"7 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":"123705929","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
Voltage Sag Source Location Methods Performance Under Symmetrical and Asymmetrical Fault Conditions 对称和非对称故障条件下电压暂降源定位方法的性能
2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI: 10.1109/TDCLA.2006.311546
R. Leborgne, D. Karlsson, J. Daalder
{"title":"Voltage Sag Source Location Methods Performance Under Symmetrical and Asymmetrical Fault Conditions","authors":"R. Leborgne, D. Karlsson, J. Daalder","doi":"10.1109/TDCLA.2006.311546","DOIUrl":"https://doi.org/10.1109/TDCLA.2006.311546","url":null,"abstract":"When several utilities operate interconnected power systems, a voltage sag generated in the grid of one utility may affect the loads connected to other utilities. From this point of view, it has become a crucial issue to identify the location of the source of a voltage sag. This paper describes and compares the methods for voltage sag source location. The methods are applied to locate the source of voltage sags considering symmetrical and asymmetrical faults. Radial and meshed areas are also analyzed. The results show that the available methods are not totally reliable and more research is needed to extend the location methods to meshed systems","PeriodicalId":406067,"journal":{"name":"2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America","volume":"224 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":"122462478","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: 51
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