Design and control of a stand-alone hybrid power system Bouthaina Madaci a , Rachid Chenni a,* , Erol Kurt b , Kamel Eddine Hemsas c a University Mentouri Constantine, Technology Faculty, Department of Electrical Engineering, MoDERNa Laboratory, Constantine 25000, Algeria b Gazi University, Technology Faculty, Department of Electrical and Electronics Engineering, Teknikokullar, 06500 Ankara, Turkey c University S etif 1, Department of Electrical Engineering, Automatic Laboratory S etif, 19000, Algeria article info Article history: Received 29 November 2015 Received in revised form 20 January 2016 Accepted 22 January 2016 Available online xxx Keywords: Hybrid Photovoltaic Wind Storage Fuel cell Control abstract This work presents a control of stand-alone hybrid system including photovoltaic (PV), wind turbine, fuel cell (PEMFC), storage systems and a dump load (in our case, an elec- trolyzer). All these sources are connected by a continuous bus to three phase load through a DCeAC converter. A strategy for the power management is designed for the proposed hybrid system to supervise power amount among various energy resources, the storage system and the dump load. In the design, the PV and wind systems are considered as main power resources, whereas PEMFC is used as an additional support, and the dump load is used for the effect of consumption of the surplus power available from sources (i.e. PV and wind), when the battery has been charged completely. The hybrid system includes a modified control algorithm, which has been developed to maintain the DC bus voltage at its reference through the regulation of the DCeDC bidirectional converter between the battery and DC bus. A dynamic model of various components of stand-alone hybrid system is presented along with a maximum power point tracking (MPPT) algorithms of the PV and wind system. The effectiveness of this modified control algorithm method has been verified using the Matlab/Simulink software. Copyright © 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. Introduction The usage of conventional fuels for instance oil, coal and natural gas in the production of the most frequent energy resource e electricity has become much expensive tool due to the extinction of the natural resources, lack of efficiency and environmentally hazardousness. For these reasons, the renewable and alternative energy resources, so-called wind, solar, biomass and harvester systems have been good re- sources for some decades, and offered numerous advantages with almost free and environmental-friendly features [1e5]. However, the major disadvantage in renewable energy re- sources is their unstable nature due to the external climatic conditions [6e10]. The load depending on the annual or daily fluctuations is not necessarily correlated with these re- sources. To meet the hourly load demands, they should be * Corresponding author. E-mail address: rachid.chenni@gmx.fr (R. Chenni). Available online at www.sciencedirect.com ScienceDirect journal homepage: www.elsevier.com/locate/he international journal of hydrogen energy xxx (2016) 1 e12 http://dx.doi.org/10.1016/j.ijhydene.2016.01.117 0360-3199/Copyright © 2016, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. Please cite this article in press as: Madaci B, et al., Design and control of a stand-alone hybrid power system, International Journal of Hydrogen Energy (2016), http://dx.doi.org/10.1016/j.ijhydene.2016.01.117