Analysis and design of isolated solar-PV energy generating system

Abstract

This paper deals with the design, control and modeling of an isolated solar-PV (Photo-Voltaic) energy generating system. The proposed system is designed for supplying an average consumer load of 1.5 kW. A constant voltage method is applied to the PV array for MPPT (Maximum Power Point Tracking). A push-pull boost dc-dc converter is fed from the PV array for charging the battery. A VSI (Voltage Source Inverter) utilizing multi-loop feedback control technique with a BESS (Battery Energy Storage System) is used for power management of the proposed system. This solar-PV energy generating system is designed, modeled and its performance is simulated in the Matlab using the Simulink, Sim power system etc. toolboxes. Simulated results are presented for the linear, nonlinear and motor loads to demonstrate its performance.