Rihab Jallouli , Lotfi Krichen , Bruno Francois , Abderrazak Ouali , Modelling and Control of an Optimized PV Array with Hydrogensystem Comprising a PEMFC and an Electrolyzer, International Journal of Electrical and Power Engineering, Volume 1,Issue 3, 2007, Pages 264-273, ISSN 1990-7958, ijepe.2007.264.273, (https://makhillpublications.co/view-article.php?doi=ijepe.2007.264.273) Abstract: This research deals with the modelling and the control of a hydrogen system comprising a Proton Exchange Membrane Fuel Cell (PEMFC) and an Electrolyzer (EL) to optimize the power use of a small photovoltaic source. The Photovoltaic panel (PV) provides energy to the load, the excess energy produced, with respect to the load requirements will be sent to the electrolyzer for hydrogen production and storage. Dynamic modelling of various components of this small system is presented. The performances of this source are demonstrated by digital simulation. Keywords: Modelling;fuel cell;electrolyzer;photovoltaic energy; power converters; control