3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)最新文献_第2页

Application of fuzzy logic on a PV water pumping system 模糊逻辑在光伏水泵系统中的应用

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059961

S. Miqoi, Abdelghani El Ougli, B. Tidhaf, A. Rabhi

引用次数: 6

The best MPPT algorithms by VSAS approach for Renewable Energy Sources (RES) 基于VSAS的可再生能源最优MPPT算法

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059994

N. M'Sirdi, B. Nehme, Mouna Abarkan, Abdelhamid Rabbi

引用次数: 17

MPPT control of variable speed wind generators with squirrel cage induction machines 鼠笼式感应电机变速风力发电机的MPPT控制

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059935

Xinyi Liu, Jianxing Liu, S. Laghrouche, M. Cirrincione, M. Wack

{"title":"MPPT control of variable speed wind generators with squirrel cage induction machines","authors":"Xinyi Liu, Jianxing Liu, S. Laghrouche, M. Cirrincione, M. Wack","doi":"10.1109/EFEA.2014.7059935","DOIUrl":"https://doi.org/10.1109/EFEA.2014.7059935","url":null,"abstract":"In order to realize maximum power point tracking (MPPT) control of wind energy generation system, it is necessary to regulate the wind turbine speed at an optimal tip-speed ratio (TSR). For obtaining the optimal tip-speed ratio, modern wind turbine controller usually uses wind speed information as a vital signal to implement the feedback of the controller. However, the rotor effective wind speed (EWS) cannot be measured by the anemometer installed at the front of the turbine. In this paper, we present two methods to estimate the rotor effective wind speed from the turbine torque and the turbine speed. Then, we utilize the estimated wind speed and the optimal tip-speed ratio to compute the generator reference speed. In the entire wind energy system, a back-to-back arrangement with two voltage source converters (VSC) has been considered: one on the machine side controlled by field oriented controller (FOC) and the other on the grid side controlled by voltage oriented controller (VOC). Finally, the comparisons of two estimation integrated with the wind energy system have been emulated to demonstrate good performance.","PeriodicalId":129568,"journal":{"name":"3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114822034","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

Solutions for quality pre-control of crimp contacts used in electric power systems and electrical machines 用于电力系统和电机的压接触点质量预控制的解决方案

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059953

Constantin-Florin Ocoleanu, G. Cividjian, G. Manolea

{"title":"Solutions for quality pre-control of crimp contacts used in electric power systems and electrical machines","authors":"Constantin-Florin Ocoleanu, G. Cividjian, G. Manolea","doi":"10.1109/EFEA.2014.7059953","DOIUrl":"https://doi.org/10.1109/EFEA.2014.7059953","url":null,"abstract":"Crimping is the most widely used method of pressure connection for permanent electrical contact between a wire conductor and a wire conductor terminating device. In this paper we present two solutions for connections quality pre-control of crimp contacts used in electric power systems and electrical machines and for early identification of the improperly executed connections, before final assembly. Thus can be avoid any damage that may occur during operation. The first solution supposes an experimental determination of specific losses by calculating the initial rate of temperature rise. This can be made drawing the tangent at the origin at heating curve. The method can be used to identify bad connections by passing a current through the winding at ambient temperature and simultaneously recording connections temperatures in the first few minutes since the current is setting. The second proposed solution is to apply to each element crimping an one level thermal indicator and making a test heating with a heating current corresponding to indicator critical temperature.","PeriodicalId":129568,"journal":{"name":"3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123205884","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: 9

Modeling the PV generator behavior submit to the open-circuit and the short-circuit faults 建立了PV发电机在开路和短路故障情况下的行为模型

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059978

W. Rezgui, N. Mouss, L. Mouss, M. Mouss, Y. Amirat, M. Benbouzid

引用次数: 7

Aerodynamic analysis of flapping-pitching flat plates 扑俯仰平板的气动分析

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059973

Wisdom D. Omoware, A. Maheri, U. Azimov

{"title":"Aerodynamic analysis of flapping-pitching flat plates","authors":"Wisdom D. Omoware, A. Maheri, U. Azimov","doi":"10.1109/EFEA.2014.7059973","DOIUrl":"https://doi.org/10.1109/EFEA.2014.7059973","url":null,"abstract":"Modern wind energy industry is highly under the influence of the advances in aerospace and has borrowed and adopted many new and innovative concepts from that industry. With the aim of exploring potential benefits of flapping blades in wind turbines, this paper presents the preliminary results of the numerical simulation of a flapping-pitching rectangular flat plate in a uniform air flow. Various combinations of flapping amplitude, flapping frequency and pitching amplitude are analysed and their effect on the instantaneous and maximum lift coefficient is presented. The change in the flapping frequency and amplitude were shown to have considerable effect on the lift coefficient. It can be deduced from the results that the lift coefficient is influenced by the flapping frequency and flapping amplitude combination. For the size and geometry presented in this study, the lift coefficient is most affected by the flapping amplitude when compared to the flapping frequency. The results indicate that the pitching amplitude initially enhances the lift coefficient. However, excessive pitching amplitude results in low lift coefficient.","PeriodicalId":129568,"journal":{"name":"3rd International Symposium on Environmental Friendly Energies and Applications (EFEA)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126589495","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

Hybridization of modified particle swarm optimization with gravitational search algorithm for solving optimal power flow including wind generation in isolated Adrar region 改进粒子群算法与重力搜索算法的杂交求解孤立Adrar区包括风力发电在内的最优潮流

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059956

S. Makhloufi, A. Mekhaldi, M. Teguar, A. Djoudi

引用次数: 1

Impact of the wind generator on the power flow in the electric grid 风力发电机对电网中潮流的影响

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059945

O. Bekri, M. Fellah, M. Benkhoris

引用次数: 10

Effect of the weather conditions on natural convection in storage silo 气象条件对筒仓自然对流的影响

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059968

N. Himrane, D. Ameziani, R. Bennacer

引用次数: 2

Traffic-based modeling of electric vehicle charging load and its impact on the distribution network and railway station parking lots 基于交通的电动汽车充电负荷建模及其对配电网和火车站停车场的影响

3rd International Symposium on Environmental Friendly Energies and Applications (EFEA) Pub Date : 2014-11-01 DOI: 10.1109/EFEA.2014.7059977

S. Sarabi, A. Davigny, V. Courtecuisse, Y. Riffonneau, B. Robyns

引用次数: 5