Comparative study of photovoltaic pumping system using a DC motor and PMDC motor

Photovoltaic (PV) powered water pumps are basically similar to any other pumping system. Just as wind turbine pumps, PV pumps use intermittent power. When there is enough sunlight, the system functions well. The simplest PV water pumping system consists of a PV array, boost converter, DC motor or PMDC motor and a pump. This paper deals with the simulation of PV based DC motor and PMDC motor pumping systems, comparison of them and proving a simple but efficient photovoltaic water pumping system. Motors and centrifugal pumps operate at variable speed in a photovoltaic pumping system. From the comparison, it is suggested that PV fed Permanent Magnet Direct Current Motor pumping system is better.