Design of Efficient Off-Grid Solar Photovoltaic Water Pumping System

Today, most countries rely on renewable energy sources (RES), such as solar, wind, hydroelectric, biomass, geothermal, etc.… energies. Solar and wind energies in particular are widely used because they are naturally abundant and environmentally friendly. Electricity generation based on renewable energy is growing. Alternative energy sources and system development systems tend to develop traditional energy sources dependent on the greenhouse effect. Photovoltaic systems are used mainly because of their economic efficiency. The main application of off-grid solar photovoltaic (SPV) systems is water harvesting in rural areas that cannot be connected to the grid. In this application, photovoltaic (PV) and pump system control are key to improving overall efficiency. At this against this background, this work proposes a simple and efficient off-grid solar photovoltaic water pumping system (SPVWPS). The designed system is based on a DC-DC boost converter, a three-phase DC-AC inverter, and a three-phase asynchronous motor coupled to a centrifugal pump. P&O Method for Maximum Power Point Tracking (MPPT). Finally, the effectiveness of the proposed off-grid SPVWPS is verified using a 4-KVA prototype.