Robust Control of Three Phase Grid Connected PV System Based on ADRC and Fuzzy

Abstract

This paper presents the modeling and control of a three-phase grid connected PV system. A new robust control has been proposed and utilized to connect the PV system with the utility grid. For the extraction of maximum power from the PV system, the Fuzzy Logic control is used due to its robustness and fast tracking response. And for the grid side control, a new robust control strategy based on the Active Disturbance Rejection Controller (ADRC) have been proposed, where the objective is to regulate the DC bus voltage as well as to control the injection of active and reactive powers into the grid.In order to evaluate the performance of the proposed control, a series of simulations have been made under the MATLAB/SIMULINK environment.