Identification of PV system model for simulation of MPPT controllers

Abstract

The present paper is part of a larger project which aims to monitor and mitigate dust on the PV systems in the city of Arequipa. Its objective is to present a simplified model for simulating PV panels for the design and project maximum power point tracker - MPPT controllers. With an experimental setup, signals of voltage, current, power, irradiance and temperature were acquired. A SEPIC converter that can be controlled electronically was simulated and implemented for using it as variable load. The PV model identified was subject to simulation considering variations of temperature and irradiance. Through these simulation, a MPP voltage set point function was identified. Finally a PI controller was implemented for MPPT system to simulate the identified PV model.