Speed Control of PV Based Three Phase Induction Motor used for Water Pumping System

Abstract

This thesis demonstrates a pumping system powered from Photovoltaic array. A low voltage DC is stepped by using DC to DC Push -Pull converter. DC output from the PV Cell is converted into high frequency DC using a Push Pull Inverter. This is stepped up using a high frequency steps up transformer. The modified MPPT (P&O) algorithm is used to increase the pulse with of the circuit. The output of step up transformer is rectified using an uncontrolled rectifier. The DC output is converted into three phase AC using inverter with voltage control controller. This drive has advantageous like utilization of nonconventional energy and improved efficiency.