Title :
Comparison of MPPT strategies in battery charging of photovoltaic systems
Author :
João H. de Oliveira;Luan P. Carlette;Allan F. Cupertino;Victor F. Mendes;Wallace do C. Boaventura;Heverton A. Pereira
Author_Institution :
Graduate Program in Electrical Engineering, Federal University of Minas Gerais, Av. Antô
fDate :
6/1/2015 12:00:00 AM
Abstract :
In photovoltaic standalone systems it is crucial to absorb most of the available energy. Thus, in order to extract the maximum power of a solar panel for a given set of climatic conditions, it is used maximum power point tracker (MPPT). The MPPT consists in a power converter which controls the solar panel voltage. In this context, this work compares the instantaneous and dynamic efficiency of three MPPT algorithms proposed in literature: perturb and observe, dP - perturb and observe and modified perturb and observe used in a photovoltaic standalone systems. The system analyzed is composted by a 48 W solar panel, a battery of 60 Ah and a charger based on a buck converter. During solar irradiance variations the algorithms presented different instantaneous efficiencies, what can produce reduction in energy absorbed during cloudy days.
Keywords :
"Batteries","Heuristic algorithms","Algorithm design and analysis","Maximum power point trackers","Voltage control","Photovoltaic systems","Atmospheric measurements"
Conference_Titel :
Industrial Electronics (ISIE), 2015 IEEE 24th International Symposium on
Electronic_ISBN :
2163-5145
DOI :
10.1109/ISIE.2015.7281650