2016 International Renewable and Sustainable Energy Conference (IRSEC)最新文献_第6页

Improvement of perturb and observe method for PV array under partial shading conditions 部分遮阳条件下光伏阵列摄动观测方法的改进

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983885

Assia Sellami, K. Kandoussi, R. El Otmani, M. Eljouad, A. Hajjaji, Fatima Lakrami

引用次数: 4

An electric circuit model for Darrieus-type vertical axis wind turbine rotors: The Tchakoua model 达里厄式垂直轴风力发电机转子的电路模型:Tchakoua模型

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983865

Pierre Tchakoua, M. Ouhrouche, G. Ekemb, R. Wamkeue, E. Benini

引用次数: 0

Solving redundancy allocation problem applied to electrical systems using CSP and forward checking 利用CSP和前向校验解决了电力系统的冗余分配问题

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7984036

Abdelquoddouss Laghrissi, Mustapha ES-Sadqi, A. Idrissi

引用次数: 3

Short-term PV power forecasting using Support Vector Regression and local monitoring data 基于支持向量回归和局部监测数据的短期光伏发电预测

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983968

Ayoub Fentis, L. Bahatti, Mohamed Mestari, M. Tabaa, A. Jarrou, B. Chouri

引用次数: 16

Comparing the performance of bipolar and unipolar switching frequency to drive DC-AC Inverter 比较双极和单极开关频率驱动直流-交流逆变器的性能

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7984067

A. Algaddafi, K. Elnaddab, Abdullah Al Ma'mari, A.N. Esgiar

{"title":"Comparing the performance of bipolar and unipolar switching frequency to drive DC-AC Inverter","authors":"A. Algaddafi, K. Elnaddab, Abdullah Al Ma'mari, A.N. Esgiar","doi":"10.1109/IRSEC.2016.7984067","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7984067","url":null,"abstract":"The inverter is a device that is used as an interface between the photovoltaic energy and the grid. The harmonic and distortion of the output current, and efficiency of the inverter are the main issues. This paper presents a model of Sinusoidal Pulse Width Modulation (SPWM) methods of unipolar and bipolar inverters in MATLAB and Psim software. A numerical model of the LC filter is derived in order to design and test the DC-AC inverter. The SPWM control is created by comparing triangle signal (a carrier waveform) and a reference signal (a sine waveform) whose frequency is the desired frequency. The simple circuit is used to characterize the scheme of SPWM techniques in order to obtain the pure output voltage and reduce the harmonic component. Empirical results show that the unipolar switching scheme is used in widespread a commercial PV inverter in order to have the flexibility to choose a filter and reduce the harmonic components. The switching frequency of the Sunny Boy inverter is found around 15 kHz and its transformer is estimated. Unipolar switching SPWM is very useful in low switching frequency than bipolar switching SPWM. The output voltage and current in both techniques have been analyzed in frequency and time domains.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114498267","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

On the flow simulation based on piston models in OWC devices for wave energy conversion 基于活塞模型的波浪能转换OWC装置流动仿真研究

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983929

H. Bouhrim, A. El Marjani

引用次数: 0

Optical study of using ceramic foams for volumetric solar receivers 体积太阳能接收器用陶瓷泡沫的光学研究

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983917

Mahmoud Alaa, M. Rady, M. Attia, E. Ewais

{"title":"Optical study of using ceramic foams for volumetric solar receivers","authors":"Mahmoud Alaa, M. Rady, M. Attia, E. Ewais","doi":"10.1109/IRSEC.2016.7983917","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983917","url":null,"abstract":"Ceramic foams are promising materials for volumetric solar receivers in concentrated solar power (CSP) plants. Understanding the solar heat flux distribution on the receiver is of great importance for optimizing the receiver volumetric efficiency and thermal performance. This work presents a 3D optical analysis of ceramic based volumetric solar receivers. The optical analysis is conducted using a Monte Carlo based solar ray tracing software. Ceramic foams are represented by idealized packed tetrakaidecahedron structures. The absorbed heat flux distribution and the effect of cell size, porosity and absorptivity on the penetration depth of the absorbed heat flux are investigated. Comparisons have been made with extruded honeycomb receivers. The results clearly demonstrate the dependence of flux distribution and penetration depth of solar rays on the material absorptivity and structure. The simulation results show a uniform heat flux distribution on the frontal faces with an intensity that increases with increasing the material absorptivity. Both the porosity and the cell size have a great effect on the penetration depth of the absorbed heat flux. In general, foam structure shows larger penetration depths than extruded honeycombs.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115294829","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

Comparison of two methods used to evaluate the aggressivity of a Moroccan marine site on solar mirrors 用于评估摩洛哥海洋站点对太阳反射镜的侵蚀性的两种方法的比较

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7984014

Mohamed Guerguer, Z. Edfouf, O. Raccurt

{"title":"Comparison of two methods used to evaluate the aggressivity of a Moroccan marine site on solar mirrors","authors":"Mohamed Guerguer, Z. Edfouf, O. Raccurt","doi":"10.1109/IRSEC.2016.7984014","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7984014","url":null,"abstract":"Durability of solar mirrors under Moroccan marine environment has been studied for a period of 3 years. At this period, a study was focused on marine atmosphere zone and studied the deposition of chlorides on wet candle device and its relation with chlorides accumulated into mirrors surface. Four glass mirror types were placed at exposure racks located at a marine outdoor site near the sea. Periodically, salts deposited on mirrors surface and those captured on wet candle device were recovered and its salinity was monitored by using a portable conductivity meter from VWR EC300. The data collected showed that the marine salt deposition is significant regarding the short distance from the seashore. Relationships between the concentration of marine salts and site meteorological conditions are established. Comparison between wet candle sensor and concrete samples methods were discussed. Finally, this study shows that chloride deposition plays an important role as an environmental indicator on service-life analysis of solar mirrors in marine atmosphere zone and it can provide important data for the design and maintenance of CSP infrastructures in such environments.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125349012","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

Study of steady state stability of the Moroccan Power system using bifurcation analysis 摩洛哥电力系统稳态稳定性的分岔分析

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983909

Noreddine Citroen, M. Ouassaid, M. Maaroufi

{"title":"Study of steady state stability of the Moroccan Power system using bifurcation analysis","authors":"Noreddine Citroen, M. Ouassaid, M. Maaroufi","doi":"10.1109/IRSEC.2016.7983909","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983909","url":null,"abstract":"This paper presents a study of steady state stability of the Moroccan Power system using bifurcation analysis. More specifically, local bifurcation is considered since, unlike global bifurcation, the system can be analyzed entirely through changes in adequate local stability property of equilibrium for specific buses. The stability property used in this paper is the voltage, as this parameter becomes more and more important in assessing system stability after a series of outage and blackout faults caused by voltage collapse happened worldwide which highlighted the severity of voltage instability. The analysis is applied for the whole Moroccan power system in order to identify the weakest buses, which will serve as reference of the study of stability with regards different scenarios of renewable energy power plants generation. The outcome of this study, which consists of identification of potential stability problems and technical solutions to overcome them, will allow to have a full idea of the behavior of Moroccan Network before and after implementing the different energy strategies and plans of the country up to 2020.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127929212","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

Optimization of a solar thermal system for low temperature industrial heating process 低温工业加热过程太阳能热系统的优化

2016 International Renewable and Sustainable Energy Conference (IRSEC) Pub Date : 2016-11-01 DOI: 10.1109/IRSEC.2016.7983977

Chaimaa El Mkadmi, A. Wahed

{"title":"Optimization of a solar thermal system for low temperature industrial heating process","authors":"Chaimaa El Mkadmi, A. Wahed","doi":"10.1109/IRSEC.2016.7983977","DOIUrl":"https://doi.org/10.1109/IRSEC.2016.7983977","url":null,"abstract":"Global industrial energy consumption amounts to 3616.93 TWh of oil and oil products, 6059 TWh of gas and 8245.60TWh of electricity [1]. About two-third of this industrial energy is considered to utilize for industrial heating processes, also known as ‘industrial process heat’. With a goal to energy security and environmental sustainability, solar thermal system can be considered as an alternative solution for industrial heating applications. Solar thermal systems integrated with the industrial process heat for low temperature (60 – 120 °C) has a greater potential because of wider range of industrial applications. This paper studies a solar thermal system providing industrial heat required for a dairy industry. A TRNSYS simulation model has been developed to study the solar thermal systems performance for three different climatic conditions-Cyprus, France (Lyon) and Morocco (Casablanca). An optimum collector model has been analysed with evacuated tube collector technology and found out that solar thermal system meets-89%,76 % and 94% of the total heating load demand of the industry for three different regions-Cyprus, France and Morocco respectively.","PeriodicalId":180557,"journal":{"name":"2016 International Renewable and Sustainable Energy Conference (IRSEC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123620267","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