Modeling Analysis of Grid-Connected Distributed Photovoltaic Power Generation System

This paper analyzes the transient characteristics of distributed photovoltaic power supply, and establishes the integrated model of distributed photovoltaic grid-connection based on MATLAB/Simulink. The first is the establishment of electromechanical transient model, including the equivalent modeling of photovoltaic array, the maximum power tracking (MPPT) control method based on conductance increment method, and the grid-connected inverter controlled by PQ. The model of grid-connected photovoltaic power generation system is set up accordingly. Based on the integrated PV grid-connected model, the corresponding characteristics of each module of the grid-connected PV power generation system are simulated. The practical value of the model is demonstrated through simulation analysis and combined with the requirements of distributed PV grid-connected parameters.