Methodology to Size an Optimal Standalone Hybrid Solar-Wind-Battery System using Genetic Algorithm

This paper presents a methodology to calculate the optimal size of a stand-alone hybrid Wind- photovoltaic (PV)-Battery system. The study was interested in the influence of the wind and solar potential and the shape of the load profile on the optimal configuration. The collection of one year of wind speed, solar radiation and ambient temperature, recorded every hour in Kayar and Potou located in the northwestern of Senegal were used with the manufacturer’s specifications of a wind turbine and a photovoltaic (PV) panel to calculate the power generated by the wind turbine and the PV modules for each hour of the day. The mathematical modeling of the principal elements of the hybrid wind/PV system is presented showing the main sizing variables. The results of simulations, by the use of the load profile n°1, show that the optimal configuration was hybrid system wind/PV/batteries with 71 and 64% of energy coming from the wind turbine on the site of Potou and Kayar, respectively. The results also show that the load profile n°2 was more suited to the hourly wind and solar energy output for the two sites compared to the rest of the load profiles.   Key words: Hybrid system, load profile, modeling, optimization, genetic algorithm, solar energy, wind energy.

[1]  B. Ould Bilal,et al.  Diurnal characteristics of the wind potential along the North-western coast of Senegal , 2011 .

[2]  Geoffrey Basil Leyland,et al.  Multi-objective optimisation applied to industrial energy problems , 2002 .

[3]  B. Ould Bilal,et al.  Optimal design of a hybrid solar–wind-battery system using the minimization of the annualized cost system and the minimization of the loss of power supply probability (LPSP) , 2010 .

[4]  Kostas Kalaitzakis,et al.  Methodology for optimal sizing of stand-alone photovoltaic/wind-generator systems using genetic algorithms , 2006 .

[5]  Seyit Ahmet Akdağ,et al.  A new method to estimate Weibull parameters for wind energy applications , 2009 .

[6]  Ziyad M. Salameh,et al.  Methodology for optimally sizing the combination of a battery bank and PV array in a wind/PV hybrid system , 1996 .

[7]  B. Ould Bilal,et al.  Etude et modélisation du potentiel éolien du site de Nouakchott , 2008 .

[8]  I. Youm,et al.  Analysis of wind data and wind energy potential along the northern coast of Senegal , 2005 .

[9]  Vincent Sambou.  Transferts thermiques instationnaires : vers une optimisation de parois de bâtiments , 2008 .

[10]  Giri Venkataramanan,et al.  Generation unit sizing and cost analysis for stand-alone wind, photovoltaic, and hybrid wind/PV systems , 1998 .

[11]  Rachid Ibtiouen,et al.  Techno-economic valuation and optimization of integrated photovoltaic/wind energy conversion system , 2011 .

[12]  C G Justus.  Winds and wind system performance [Wind power]. , 1978 .

[13]  Orhan Ekren,et al.  Size optimization of a PV/wind hybrid energy conversion system with battery storage using response surface methodology , 2008 .

[14]  Ziyad M. Salameh,et al.  Optimum photovoltaic array size for a hybrid wind/PV system , 1994 .

[15]  C. M. F. Kebe,et al.  Methodology to Size an Optimal Stand-Alone PV/wind/diesel/battery System Minimizing the Levelized cost of Energy and the CO2 Emissions , 2012 .

[16]  Boudy Ould Bilal,et al.  Impacts of aerosols on available solar energy at Mbour, Senegal , 2012 .

[17]  Wei Zhou,et al.  Current status of research on optimum sizing of stand-alone hybrid solar–wind power generation systems , 2010 .

[18]  Rodolfo Dufo-López,et al.  Design and control strategies of PV-Diesel systems using genetic algorithms , 2005 .

[19]  Adam Molyneaux.  A practical evolutionary method for the multi-objective optimisation of complex integrated energy systems including vehicle drivetrains , 2002 .

[20]  Ricardo Rüther,et al.  Economic evaluation and optimization of hybrid diesel/photovoltaic systems integrated to utility grids , 2004 .

[21]  G. L. Johnson,et al.  Wind energy systems , 1985 .

[22]  B. Ould Bilal,et al.  ETUDE ET MODELISATION DU POTENTIEL SOLAIRE DU SITE DE NOUAKCHOTT ET DE DAKAR , 2007 .