Uma nova abordagem de rastreamento do ponto de máxima potência em painéis fotovoltaicos

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

29/03/2012

RESUMO

The photovoltaic energy offers known advantages, however, it has yet to overcome some challenges, mainly the low efficiency of conversion of the photovoltaic panels. Besides the development of new materials, it still continues very important to increase the conversion efficiency through the maximization of the input solar radiation and the optimization of the photovoltaic panel operating point. This work presents a new approach for tracking the maximum power point, appropriate for any configuration of converters and capable to follow the fast changes in irradiance and temperature. It is a method of perturbation and observation that measures only the panel output current and that maintains a perfect search of the maximum power point, even during abrupt atmospheric variations, by simply using flags. The work still presents, as secondary objective, basic information regarding photovoltaic systems: cells, panels, converters and their control techniques. The performance of the simulations using the software Matlab proved to be very good, confirming the robustness, simplicity, rapid convergence and ease of implementation of the algorithm.

ASSUNTO(S)

energia energia fotovoltaica ponto de máxima potência energy photovoltaic energy maximum power point tracking maquinas eletricas e dispositivos de potencia

Documentos Relacionados