Photovoltaic Pumping System Fed by DC-DC Push Pull Converter

Abstract

This paper is to design a photovoltaic DC motor pumping system powered by DC-DC push pull converter whose output can be used for irrigation purpose. The charge controller of the system will regulate the output voltage of photovoltaic module and charge the battery. The push-pull type DC-DC converter will increase the battery output voltage and supply the terminal voltage for the DC pump as per the requirement according to the design values. The photovoltaic module is used as a source which converts the light energy received from sun radiation into electrical energy. The produced electrical energy from the photovoltaic is in Direct Current form. So here, the DC pump is used as a load instead of AC pump where the inverter is to be placed which converts the DC into AC. In between the source and load, the charge controller, battery and push-pull type DC-DC converter are connected. The photovoltaic dc pump can be used for low power applications. The motor pump operating under DC power has many advantages than AC pump.