Modeling and control of a desalination unit based solar energy

The power of desalination system by renewable energy sources (RES) systems has been going through an upwards trend, especially during the last decade. This paper concerns the modeling and the control of a desalination unit by reverse osmosis based solar energy. The system includes photovoltaic panels, electrical converters, batteries and a desalination unit which presents the load. Dynamic modeling of various components of this isolated system is presented. To ensure the balance between consumption and production and to guarantee the proper operating of the unit, control loops are developed. The simulation results show that the proposed hybrid power system equipped with control loops operates efficiently under load power demand variations.