2016 Eighteenth International Middle East Power Systems Conference (MEPCON)最新文献_第3页

Statistical analysis of switching overvoltages and insulation coordination for a 500 kV transmission line 500kv输电线路开关过电压与绝缘配合的统计分析

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836966

A. Hamza, S. Ghania, A. Emam, Ahmed S. Shafy

{"title":"Statistical analysis of switching overvoltages and insulation coordination for a 500 kV transmission line","authors":"A. Hamza, S. Ghania, A. Emam, Ahmed S. Shafy","doi":"10.1109/MEPCON.2016.7836966","DOIUrl":"https://doi.org/10.1109/MEPCON.2016.7836966","url":null,"abstract":"The modern methods of insulation coordination make use of probabilistic concepts and statistical procedures especially for very high voltage systems. This paper presents, a proper approach to calculate the switching surge flashover rate (SSFOR) using Adaptive Neuro Fuzzy Interface System (ANFIS). The switching overvoltages distribution along the power transmission line under different conditions are investigated. The statistical distributions of energization overvoltages for a typical Egyptian 500 kV double-line from High-Dam to Samalut are derived based on the results of 100 energization scenarios by randomly switching using alternate transient program (ATP). The statistical distributions and its key values, such as mean value, standard deviation and 2% statistical overvoltages values have been recorded. The effects of the line length, source strength and shunt reactors for controlling the switching surge overvoltages are demonstrated. The developed ANFIS system is used to estimate the SSFOR for different input parameters for both of the switching overvoltages and the insulation strength distributions with high and comparable accuracy.","PeriodicalId":397427,"journal":{"name":"2016 Eighteenth International Middle East Power Systems Conference (MEPCON)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131600286","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

Optimal energy portfolios with demand prediction and distributed generation sources 具有需求预测和分布式发电源的最优能源组合

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836909

F. G. Bernardes, Leonardo Augusto Ferreira, R. R. Saldanha

引用次数: 1

Particle swarm optimization for long-term Demand Forecasting 长期需求预测的粒子群优化

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836888

Ahmed A. A. Hafez, Mohamed K. Elsherbiny

引用次数: 3

Load frequency control of an isolated small power system with contribution of vehicle-to-grid V2G scheme 车辆对电网V2G方案贡献的孤立小电力系统负荷频率控制

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836912

T. Mohamed

引用次数: 1

Effects of silicone grease on the hydrophobicity of cable terminations sheds and their electrical characteristics 硅脂对电缆终端棚疏水性及其电特性的影响

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7837000

L. Nasrat, M. Annaka, S. El-Khodary, S. El-Debeiky

引用次数: 1

Multiple-arm passive filters design based on different reactive power sharing approaches 基于不同无功分担方法的多臂无源滤波器设计

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836884

Sameh S. Kandil, S. Aleem, A. Ibrahim

引用次数: 2

Experimental implementation of optical current transducers 光学电流传感器的实验实现

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836902

Ehab M. Esmail, N. Elkalashy, T. Kawady, A. Taalab

引用次数: 4

Optimal multi-criteria design of a new hybrid power generation system using ant lion and grey wolf optimizers 基于蚁狮和灰狼优化算法的新型混合发电系统多准则优化设计

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836883

M. Algabalawy, A. Abdelaziz, S. Mekhamer, M. Badr

{"title":"Optimal multi-criteria design of a new hybrid power generation system using ant lion and grey wolf optimizers","authors":"M. Algabalawy, A. Abdelaziz, S. Mekhamer, M. Badr","doi":"10.1109/MEPCON.2016.7836883","DOIUrl":"https://doi.org/10.1109/MEPCON.2016.7836883","url":null,"abstract":"The importance of the hybrid power generation systems (HPGS) increased especially in the last few years. HPGS are used to distribute the load between many different energy sources (e.g. utility grid (UG), wind turbine (WT), photovoltaic (PV), fuel cell (FC), and storage battery (SB)). These power sources are combined together in different configurations to form the HPGS. There are two common operation modes for these hybrid power systems; the first one is called as a standalone mode, in which the distributed power sources are combined together to supply the power without any supporting from the utility grid. The other mode is known as the utility grid connect mode, where the combination of these power sources is paralleled connected to the utility grid. This paper introduces a new contributions on the design of the HPGS, where the proposed hybrid system includes for the first time another energy utility such as the natural gas piping network. All operations conditions of this network are considered through the design of the HPGS. Applying modern meta-heuristic optimization techniques for the first time in the sizing of the HPGS. The applied techniques are; the ant lion optimizer (ALO) and grey wolf optimizers (GWO). MATLAB software has been used to execute the optimization process using ALO and GWO, and a detailed comparison is occurred between the results of applying the above mentioned techniques and another two modern optimizations techniques; Cuckoo search algorithm (CSA) and flower pollination algorithm (FPA) to show the effectiveness of applying both of ALO and GWO.","PeriodicalId":397427,"journal":{"name":"2016 Eighteenth International Middle East Power Systems Conference (MEPCON)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114837511","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

Synchrophasor measurements-based on-line power system steady-state security indices—part I: Methodology 基于同步相量测量的在线电力系统稳态安全指标。第1部分:方法

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836969

H. Talaat, H. Ibrahim, Bassam A. Hemade

引用次数: 3

Impact of thermal aging of transformer oil on UV-Vis optical spectrum and dielectric properties 变压器油热老化对紫外可见光谱和介电性能的影响

2016 Eighteenth International Middle East Power Systems Conference (MEPCON) Pub Date : 2016-12-01 DOI: 10.1109/MEPCON.2016.7836996

Abdelrahman M. Alshehawy, D. Mansour, A. Rezk, M. Ghali

{"title":"Impact of thermal aging of transformer oil on UV-Vis optical spectrum and dielectric properties","authors":"Abdelrahman M. Alshehawy, D. Mansour, A. Rezk, M. Ghali","doi":"10.1109/MEPCON.2016.7836996","DOIUrl":"https://doi.org/10.1109/MEPCON.2016.7836996","url":null,"abstract":"Aged transformer oil can be evaluated by conventional tests to assess the degradation in electrical, chemical and physical properties. However, proper evaluation requires expensive equipment, expertise and time for sampling and testing. UV-Vis spectroscopy is a nondestructive technique that can be conducted on-line with a lower cost and a simple manner. This study aims to investigate the impact of thermal aging on the UV-Vis spectra and the dielectric properties of aged transformer oil in order to correlate between them for the sake of condition assessment of aged transformer oil using UV-Vis spectroscopy. In this regard, oil samples were thermally degraded by accelerated aging experiment in laboratory. Then, these samples were tested for breakdown voltage and dielectric dissipation factor. Also, water content was measured due to its influence on the dielectric properties. In addition, the samples were tested using UV-Vis spectrophotometer to obtain UV-Vis spectra and decomposition by-products. The results were investigated considering the effect of aging duration and correlating the decomposition by-products with dielectric properties. The results indicate that UV-Vis spectra can reflect the degradation in aged transformer oil.","PeriodicalId":397427,"journal":{"name":"2016 Eighteenth International Middle East Power Systems Conference (MEPCON)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123463617","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: 15