Finite Set Model Predictive Control of Three Phase 2L-VSC for Grid Connected Photovoltaic System

Abstract

This paper presents a high-performance model predictive current control of a three phase two level voltage source converter 2L-VSC supplied by a photovoltaic power generation with a long horizon control. An LCL filter is designed between the inverter and the grid to minimize the current distortion injected into the grid. The aim is to improve the performance of the proposed system by minimizing the THD and switching frequency which leads to reduce losses and optimize the quality of the power injected. The MATLAB/Simulink environment is used to simulate and verify the performance of the system using the proposed control technique. Simulation results demonstrate that the proposed FCS-MPC strategy can effectively improve the quality of the grid connection and also reduce switching losses. Furthermore, a comparative study proves the supremacy of the proposed FCS-MPC over the PI control, and its compliance with the basis of IEE Std 519–2014.