2008 12th International Middle-East Power System Conference最新文献_第10页

A novel approach for online fault detection in HVDC converters 高压直流变流器在线故障检测新方法

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562317

J. Moshtagh, M. Jannati, H. Baghaee, E. Nasr

引用次数: 26

Identification of topology error in double-bus double-breaker substations 双母线双断路器变电站拓扑误差辨识

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562364

Heungjae Lee, Kyeong-Seob Lee, Chanho Lim

引用次数: 2

Novel measurement and analysis system for investigation of partial discharge mechanism in SF6 Gas 研究SF6气体局部放电机理的新型测量分析系统

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562383

H. Kojima, N. Hayakawa, F. Endo, H. Okubo

{"title":"Novel measurement and analysis system for investigation of partial discharge mechanism in SF6 Gas","authors":"H. Kojima, N. Hayakawa, F. Endo, H. Okubo","doi":"10.1109/MEPCON.2008.4562383","DOIUrl":"https://doi.org/10.1109/MEPCON.2008.4562383","url":null,"abstract":"An understanding of mechanism of partial discharge (PD) in SF6 gas is critical for diagnosis of PD in electric power equipment and contributes to the optimization of the design of electric power applications. However, for complexity of PD characteristics under non-uniform electric field, the mechanism of PD in SF6 is not comprehended enough. For this reason, we aim to reveal the PD mechanism by measuring current waveform, propagation characteristics and light emission of PD in SF6 gas and analyzing these data. For this purpose, we have developed excellent measurement and analysis techniques. For an analysis of PD under ac voltage application, not only PD waveforms but also PD propagation property is essential. We have constructed partial discharge current pulse waveform analysis (PD-CPWA) system. This system has enabled us to observe PD current sequentially at high speed and analyze the propagation of PD current pulse statistically. By the application of PD-CPWA system to diagnosis of PD activity due to the metallic particle in SF6, we could identify the particle type and size. On the other hand, for an analysis of PD under impulse voltage application, an ultra high-speed PD measurement by various methods is extremely important. In order to investigate the impulse PD mechanism spatially and temporally, the simultaneous measurement of current and light emission intensity waveforms, streak and still light emission images and temporal evolution of spectrum of PD light emission have been carried out. By using this synchronous ultra-high speed PD measurement system, we revealed the change of light emission from decomposition products depending on the step propagation of leader discharge.","PeriodicalId":236620,"journal":{"name":"2008 12th International Middle-East Power System Conference","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124666445","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

Dynamic modeling of Al-Zaafarana wind farm for protection applications 用于防护应用的Al-Zaafarana风电场动态建模

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562352

T. Kawady, N. Mansour, A. Osheiba, A. Taalab

引用次数: 6

Generation coordination for transient stability enhancement using particle swarm optimization 基于粒子群优化的暂态稳定增强发电协调

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562360

A. Hoballah, I. Erlich

引用次数: 7

Development of unbalanced three-phase distribution power flow analysis using sequence and phase components 用序相分量分析不平衡三相配电网潮流的发展

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562347

M. Abdel-Akher, K. M. Nor, A. Abdul-Rashid

{"title":"Development of unbalanced three-phase distribution power flow analysis using sequence and phase components","authors":"M. Abdel-Akher, K. M. Nor, A. Abdul-Rashid","doi":"10.1109/MEPCON.2008.4562347","DOIUrl":"https://doi.org/10.1109/MEPCON.2008.4562347","url":null,"abstract":"This paper presents a new power-flow method for analyzing unbalanced distribution networks. In this method, an unbalanced distribution network Is decomposed to: 1) main three-phase network with three-phase line segments and 2) unbalanced laterals with two-phase and single-phase line segments. The proposed method allows solving the main three-phase network based on the decoupled positive-, negative, and zero-sequence networks. The unbalanced laterals are solved using the forward/backward method In phase components. The solution process Involves three main steps. Firstly, In phase components, the backward step Is executed to calculate an equivalent current Injection for each unbalanced lateral. Secondly, the main three-phase network Is solved In sequence components. The standard Newton-Raphson and fast decoupled methods are used for solving the positive-sequence network whereas the negative- and zero-sequence networks are represented by two nodal voltage equations. Finally, In phase components, the forward step Is performed to update the voltages In the unbalanced laterals. The three-steps are repeated till convergence happen. Distribution network characteristics such as line coupling, transformer phase shifts, voltage regulators, PV nodes, capacitor banks, and spot or distributed loads with any type and connection are considered. Solution of unbalanced radial feeders shows that the proposed hybrid algorithm Is accurate.","PeriodicalId":236620,"journal":{"name":"2008 12th International Middle-East Power System Conference","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117218868","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: 32

Simulated annealing optimization algorithm for electric power systems quality analysis: harmonics and voltage flickers 电力系统质量分析的模拟退火优化算法:谐波和电压闪变

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562403

A. Alkandari, S. Soliman, A.H. Mantwy

引用次数: 6

Optimized generation costs using a modified particle swarm optimization version 使用改进的粒子群优化版本优化生成成本

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562392

Adel Ali, A. El-Ela, R. El-Sehiemy, O. Ahmed

引用次数: 25

Fuel cell based distributed generation system 基于燃料电池的分布式发电系统

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562358

Jin-Woo Jung, A. Keyhani

引用次数: 18

Tariff design for load building / energy conservation a DSM formulation 负荷建筑/节能的电费设计-需求侧管理的制定

2008 12th International Middle-East Power System Conference Pub Date : 2008-03-12 DOI: 10.1109/MEPCON.2008.4562302

H. Attia, M. El-Sobki, M. El-Metwally, S. Wahdan

{"title":"Tariff design for load building / energy conservation a DSM formulation","authors":"H. Attia, M. El-Sobki, M. El-Metwally, S. Wahdan","doi":"10.1109/MEPCON.2008.4562302","DOIUrl":"https://doi.org/10.1109/MEPCON.2008.4562302","url":null,"abstract":"In this paper an optimal based tariff design formulation is introduced for achieving load building or energy conservation DSM target objectives. For a load building DSM objective tariffs are usually designed in a decreasing form (higher consumption corresponds to lower average price per kWh); while for an energy conservation DSM objective tariffs are usually designed in an increasing form (higher consumption corresponds to higher average price per kWh). The introduced optimal tariff design model determines: tariff levels and their corresponding energy levels to achieve objective revenue levels as required by the aforementioned DSM targets. The optimal tariff formulation introduced in this paper utilizes the price of energy for each energy level as its control variables, while levels of energy consumption (energy block size), the corresponding number of consumers and revenues are the state variables. Total energy consumption and total number of consumers serve as the equality constraints. The proposed optimal tariff formulation structure is applied to the real data of the Egyptian residential and commercial consumer sectors and results are compared to the existing tariff structure.","PeriodicalId":236620,"journal":{"name":"2008 12th International Middle-East Power System Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127636711","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