Sliding mode assisted MPPT technique using quadratic boost converter for solar PV based DC water pumping system

Development of renewable and sustainable energy sources has grown interest to use renewable energy-based water pumping system. Solar PV based DC water pumping system is an attractive option for drinking water and agriculture purposes as it is a clean and green source of energy. It can be extensively used in rural areas where there is a lack of access to electricity from the grid. Moreover, running and maintenance cost of solar PV based DC water pumping system is ideally negligible. However, the challenge in the development of PV based DC water pumping system is its low conversion efficiency. Therefore, for efficient utilization of PV panels, quadratic boost converter with high conversion gain incorporated with SMC assisted MPPT technique has been proposed for tracking of maximum power point of PV panels under variations of temperature and irradiation. The proposed MPPT technique is based on single loop control scheme and robust to system uncertainties.