Two Stage PV Generation System with Novel Control Strategy to Improve Grid Integrating Capabilities During Partial Shading Conditions

Abstract

The presented work introduces a grid-integrated photovoltaic (PV) generation system, that incorporates a DC-to-DC converter and a DC to AC inverter specifically designed to handle partial shading conditions. The DC-to-DC converter employs an MPPT algorithm inspired by the construction of the Giza Pyramid, while the inverter is controlled using virtual synchronous generation (VSG) control. The GPC based MPPT algorithm is used to optimize the PV system's energy harvesting capabilities. By leveraging mathematical principles and optimization techniques inspired by the pyramid's design, the Giza Pyramid construction based MPPT algorithm aims to enhance the description of a synchronous generator. This paper aims to upgrade the overall efficacy of the PV systems, particularly under challenging operating conditions like partial shading conditions. VSG control enables renewable energy systems to seamlessly integrate with the existing power grids. It helps to maintain grid stability during normal operation, handle grid disturbances, and support grid voltage and frequency control. The system simulation is conducted with MATLAB/Simulink. The gained outcomes are assessed with those obtained from a PV system employing a Particle Swarm Optimization (PSO) MPPT process. The comparative analysis provides the effectiveness of the intended MPPT algorithm in handling partial shading situations.