Modeling and Simulation of PV System with Three Phase Inverter along PV, IV Curves using MATLAB/Simulink

Abstract

The modeling and simulation research of a solar grid-connected system with an inverter, as well as the experimental verification of the new methodology, are presented in this paper. The simulation of a grid-connected PV system with a 12 KW rated power, made up of a solar generator and a three-phase grid-connected inverter, used this technique. By conducting IV characteristic measurements, results for the PV module characteristics have been simulated. The observed AC output power vs DC input power is fitted to a second-order efficiency model to derive its unique parameters, which account for the power conversion efficiency. The Matlab/Simulink environment was used to produce the simulation results. Whether looking at I-V characteristics or the entire operating system, the results have demonstrated good consistency. A PV array block is needed to produce 12kW power so that we can feed it to the grid. Also, there are some inputs to the PV array i.e. Irradiance and Temperature. These two parameters can change the output power considerably, for example, if the temperature rises, the output power decreases.