MODELLING AND SIMULING THE POWERING SYSTEM OF A BASE TRANSMITTER STATION WITH A STANDALONE PHOTOVOLTAIC GENERATOR

摘要

Theoretical study of the solar cell is based on one diode representation. The temperature and irradiance effects on the solar cell are studied in particular, upon the fields as short circuit current I_(sc), open circuit voltage Voc, the performance η, and the form factor FF. On the characteristic of a direct current load (3 kW), which is a base transmitter station BTS (I=60A, V=48V), we can found there is an operating point, supplied with a pV generator, and the operating conditions (temperature, irradiance), we can found a highly gap between the potential peak power and the real power transferred to the BTS. A boost converter ordered by a Pulse Width Modulation (PWM) is used for extracting the maximum power from the solar photovoltaic generator. The present work describes the maximum power point tracker (MPPT) for the photovoltaic generator connected to a Dc load. Then, we model the photovoltaic generator, the boost converter, the Pulse Width Modulation and the MPPT algorithm P&O which produce it, with Matlab/Simulink software. The simulation results obtained, allow to judge the quality of models choose especially for response time of our system and the stability around the maximal power point.