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An Advanced Real-Time Electro-Magnetic Simulator for power systems with a simultaneous state-space nodal solver 具有同步状态空间节点求解器的电力系统先进实时电磁模拟器
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762905
C. Dufour, J. Mahseredjian, J. Bélanger, J. L. Naredo
{"title":"An Advanced Real-Time Electro-Magnetic Simulator for power systems with a simultaneous state-space nodal solver","authors":"C. Dufour, J. Mahseredjian, J. Bélanger, J. L. Naredo","doi":"10.1109/TDC-LA.2010.5762905","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762905","url":null,"abstract":"This paper presents a simulation method that combines state-space analysis with a nodal method for the simulation of electrical systems. This paper extends the concept of a discrete companion branch equivalent of the nodal approach to state-space described systems, and enables natural coupling between them. The flexible clustering of state-space described electrical subsystems into a nodal method has the following advantages: first, the nodal admittance matrix can be constrained in size while still permitting the solution of a switched network by nodal admittance matrix on-line triangularisation. Also, each group can have a precalculation of all internal modes (caused by switches, for example) within itself, an important feature for real-time applications. Secondly, the state-space formulation enables the use of higher-level discretization methods with L-stability properties. Finally, the approach enables the coupling of complex nodal-based models like FD-line into a state-space based solver. The method is implemented in a commercial real-time simulation software tool, the Advanced Real-Time Electro-Magnetic Simulator (ARTEMiS).","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"18 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":"130366985","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: 31
Reactance calculation of a reactor with non-concentric windings by utilizing a finite element method (FEM) based 3-D program 利用三维有限元方法计算非同心绕组电抗器的电抗
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762945
E. D. Paula, J. C. Mendes, W. Calil
{"title":"Reactance calculation of a reactor with non-concentric windings by utilizing a finite element method (FEM) based 3-D program","authors":"E. D. Paula, J. C. Mendes, W. Calil","doi":"10.1109/TDC-LA.2010.5762945","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762945","url":null,"abstract":"This paper describes a modern method to calculate the saturated and non-saturated reactances of quasi-linear reactors. The reactor studied is a single-phase unit with two non-concentric windings without magnetic core, but with magnetic shields and tank. This geometry requires 3-D calculations. To achieve the highest accuracy, a FEM based 3-D program with a time harmonic solver was utilized to calculate the reactive energy in the system. With the reactive energy, the reactance is calculated. Simulations were made to calculate the total and the self reactances. The mutual reactance was calculated by two means, with aid of magnetic circuit theory and by making a separate simulation. The calculated reactances were compared to the measured reactances of an actual full-size manufactured reactor. The deviation between calculated and measured reactances was negligible. Hence, the design reliability to meet the guaranteed reactance value and tolerance was significantly enhanced, thanks to the calculation method utilized.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"32 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":"130793223","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 multi-objective programming approach for the optimal operation of distributed generation considering uncertainty 考虑不确定性的分布式发电最优运行多目标规划方法
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762891
A. C. Rueda-Medina, J. López-Lezama, A. Padilha-Feltrin
{"title":"A multi-objective programming approach for the optimal operation of distributed generation considering uncertainty","authors":"A. C. Rueda-Medina, J. López-Lezama, A. Padilha-Feltrin","doi":"10.1109/TDC-LA.2010.5762891","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762891","url":null,"abstract":"Due to the renewed interest in distributed generation (DG), the number of DG units incorporated in distribution systems has been rapidly increasing in the past few years. This situation requires new analysis tools for understanding system performance, and taking advantage of the potential benefits of DG. This paper presents an evolutionary multi-objective programming approach to determine the optimal operation of DG in distribution systems. The objectives are the minimization of the system power losses and operation cost of the DG units. The proposed approach also considers the inherent stochasticity of DG technologies powered by renewable resources. Some tests were carried out on the IEEE 34 bus distribution test system showing the robustness and applicability of the proposed methodology.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"225 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":"133812022","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
Optimal placement of protective devices in distribution networks based on risk analysis 基于风险分析的配电网保护装置优化配置
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762875
S. Javadian, M. Haghifam
{"title":"Optimal placement of protective devices in distribution networks based on risk analysis","authors":"S. Javadian, M. Haghifam","doi":"10.1109/TDC-LA.2010.5762875","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762875","url":null,"abstract":"Traditional electric distribution systems are radial in nature. These networks are protected by very simple protection devices such as over-current relays, fuses, and re-closers. The presence of distributed power generation causes the researches in this area to be considered more daily. One of the most interesting topics is this area is the protection of distribution networks that are connected to distributed generators. Recent trends in distributed generation (DG) and its useful advantages perfectly can be achieved while the relevant concerns are deliberately taken into account. Up to now, many papers have been published in this area, and in each paper some conflicts that DGs may make in the operation of protection system in distribution networks have been investigated. Also, some solutions have been presented in some other works. In this paper, a new method for optimal placement of circuit breakers (CBs), which are one of the main protective devices in distribution networks including DG, has been presented. In the proposed method, risk analysis is used to optimize the location of circuit breakers on the distribution feeders.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"22 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":"132062892","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: 19
Analysis of the electrical frequency in Caracas during four major events of the year 2008 2008年加拉加斯四个主要事件期间的电力频率分析
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762956
E. Sorrentino, Walter Dartanay, J. Zambrano, E. Orea
{"title":"Analysis of the electrical frequency in Caracas during four major events of the year 2008","authors":"E. Sorrentino, Walter Dartanay, J. Zambrano, E. Orea","doi":"10.1109/TDC-LA.2010.5762956","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762956","url":null,"abstract":"This article presents an analysis of the behavior of the electrical frequency in Caracas during four major events of the year 2008. The frequency was computed from the voltage signals of the fault recorders. The events of April 29 and September 01 were faults in transmission lines of the National Grid, and the event of October 19 was the erratic trip of two main lines at 765kV (Guri-Malena). In these events, the frequency evolution caused the trip of the islanding scheme of the Caracas' electric utility (EDC), but later EDC collapsed. The event of December 11 was the erratic operation of the islanding scheme of EDC, and the underfrequency load shedding avoided a total collapse of EDC. The analysis of these events has been useful to do the corresponding recommendations.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"99 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":"134357144","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
Reactive power and harmonic distortion control in electric traction systems 电力牵引系统无功功率与谐波畸变控制
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762881
J. Martinez, G. Ramos
{"title":"Reactive power and harmonic distortion control in electric traction systems","authors":"J. Martinez, G. Ramos","doi":"10.1109/TDC-LA.2010.5762881","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762881","url":null,"abstract":"Electric traction systems generate various power quality problems that have an important impact on its distribution network. In this paper a DC electric traction system was modeled in order to generate the problems that its operation implicated. Once the power quality phenomena were replicated a compensation device, SVC, was added to de distribution network to improve voltage and also a filter was installed in the same node to reduce wave distortion. Finally the possible events that can appear if the original configuration of the compensator device is changed are evaluated.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"54 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":"133525965","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
Diagnosis of power transformers through Frequency Response Analysis applying multiresolution analysis and pattern classification 基于多分辨率分析和模式分类的电力变压器频响分析诊断
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762893
J. Gonzales, E. Mombello, G. Guidi
{"title":"Diagnosis of power transformers through Frequency Response Analysis applying multiresolution analysis and pattern classification","authors":"J. Gonzales, E. Mombello, G. Guidi","doi":"10.1109/TDC-LA.2010.5762893","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762893","url":null,"abstract":"Detection of abnormalities within transformers is a current field of study which aims to prevent future permanent damages. Among the automatic diagnostic methodologies there are some proposals, which make use of the Frequency Response Analysis (FRA) technique as a condition assessment criterion for its sensitivity to variations in the windings and the iron core. However, these methodologies are not completely robust due to the parameters that are used for its discrimination, which are generally statistics indicators. This paper shows a new diagnosis methodology which has been successfully applied in other fields based on the implementation of Wavelet multiresolution analysis and pattern recognition methods applied to FRA measurement records as a condition assessment tool.","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":"130557761","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
The repair process of five Colombian power distribution systems 哥伦比亚五个配电系统的维修过程
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762894
C. J. Zapata, J. Díaz, M. Ocampo, J. D. Marriaga, J. Patino, A. F. Gallego
{"title":"The repair process of five Colombian power distribution systems","authors":"C. J. Zapata, J. Díaz, M. Ocampo, J. D. Marriaga, J. Patino, A. F. Gallego","doi":"10.1109/TDC-LA.2010.5762894","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762894","url":null,"abstract":"This paper presents a study of the repair process performed in five Colombian power distribution systems using queuing theory concepts. It represents the input and service processes of the queuing system by means of stochastic point process models and assesses the repair process performance indexes applying a procedure of sequential Monte Carlo simulation. Results shows: i. The power law stochastic point process model is recommended as the first choice for representing the input and service processes because it fits even in those cases of samples with low tendency for which the fit to renewal process models failed. ii. Although the traffic intensity parameter gives at a glance the tendency of the repair process performance, to know when an index is higher o lower than a given value, it is necessary to apply the assessment procedure.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"8 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":"123627214","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
Transient response of grounding electrodes for the frequency-dependence of soil parameters 土壤参数频率依赖性下接地电极的瞬态响应
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762982
A. G. Pedrosa, Marco Aurelio O. Shroeder, M. Afonso, R. Alípio, S. C. Assis, T. Oliveira, Anisio R. Braga
{"title":"Transient response of grounding electrodes for the frequency-dependence of soil parameters","authors":"A. G. Pedrosa, Marco Aurelio O. Shroeder, M. Afonso, R. Alípio, S. C. Assis, T. Oliveira, Anisio R. Braga","doi":"10.1109/TDC-LA.2010.5762982","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762982","url":null,"abstract":"This study evaluates the response of a horizontal grounding electrode against impulsive currents whose waveforms and time front is typical of lightning. The electrode is found buried in soil with different resistivity values and whose conductivity and permittivity vary with spectrum frequency of lightning according four formulations exists in literature. It was possible to observe the intense propagation effects responsible for the grounding impedance values significantly different from the resistance at low frequency and also difference according to each formulation, which has decreased the potential, the impedance impulsive and impulsive coefficient compared to traditional data from the technical literature specialist.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"1 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":"125910569","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
Economic impacts of the discontinuity of power services by using an electricity market model 利用电力市场模型分析电力服务中断的经济影响
2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA) Pub Date : 2010-11-01 DOI: 10.1109/TDC-LA.2010.5762973
S. A. S. Lusvarghi, H. Arango, B. Bonatto, J. D. de Abreu, C. Tahan
{"title":"Economic impacts of the discontinuity of power services by using an electricity market model","authors":"S. A. S. Lusvarghi, H. Arango, B. Bonatto, J. D. de Abreu, C. Tahan","doi":"10.1109/TDC-LA.2010.5762973","DOIUrl":"https://doi.org/10.1109/TDC-LA.2010.5762973","url":null,"abstract":"This study focuses on obtaining the regulatory tariffs from a microeconomic point of view, through studies on the optimization of investments and cost minimization, and focus on the issue of compensation to the customer due to deficiencies in the quality of the supplied energy by using the TAROT (optimized tariff) model. The methodology of direct compensation to the customer aims to ensure that investments in power quality are not maid below the values which guarantees the continuity goals imposed by the regulatory agency, providing, in case of violation of the standards, an added value to the consumer close to that he would get with the target indexes. This methodology was applied in a Brazilian distribution company, and the resulting tariffs were compared against each other as well as the resulting aggregated economic values.","PeriodicalId":222318,"journal":{"name":"2010 IEEE/PES Transmission and Distribution Conference and Exposition: Latin America (T&D-LA)","volume":"54 4 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":"123929912","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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