Design & Simulation of Grid Connected PV Sourced NPC Inverter with Reactive Power Injection

Santhosh H V, Dr. Eranna

Abstract: In this paper, the proposed system consists of PV source supplying the grid using NPC inverter along with boost Converter. An MPPT algorithm is formulated to extract maximum power from the PV source and providing it to grid and load. A reactive power injection control is added with dc voltage control for the inverter so that if power generation is insufficient, reactive power is to be injected to provide more stability. The proposed systemis simulated in MATLAB/ Simulink software.

Keywords: PV source, NPC Inverter, Boost converter, DC voltage control, Reactive power Injection