Design and Control of Two-Stage Standalone Photovoltaic Generation System

摘要

This paper introduces an effective design and control of a two-stage standalone photovoltaic system consisting of a DC-DC boost converter as the first stage and a single-phase full H-bridge inverter as the second stage. The DC-DC converter controlled by Perturb and Observe MPPT to achieve maximum electric power under different weather conditions. Moreover, the full H-bridge inverter topology along with two control loops are used as a link between the system and the load. To mitigate noises that could occur in both voltage and current, a second order passive Inductor Capacitor(LC) filter is conceived. Implementation of the system is done by Matlab/Simulink Software and relevant results are discussed.