Standalone Single Stage PV fed Reduced Switch Inverter Based PMSM for Water Pumping Application

 Abstract—

This paper proposes a standalone single stage PV fed PMSM drive for water pumping. The proposed system aims at reducing the switching losses and overall cost by using reduced switch inverter (RSI). The proposed system comprises of a PMSM drive, fed by PV source through an inverter employing reduced number of switches. The inverter uses only four switches whereas the conventional VSI utilizes six switches. Field oriented control scheme is employed to control the PMSM drive. Perturb and Observe (P&O) MPPT technique is used to generate a speed reference to PMSM drive. Simulation studies for the proposed PV fed PMSM driven water pumping system are performed using MATLAB platform and it is also experimentally verified through FPGA controller based 400 W laboratory prototype PMSM drive and results demonstrates the efficacy of the system.