Otimização da potencia de operação em sistema isolado fotovoltaico usado técnicas de inteligencia artificial / Power operation optmization of photovoltaic stand alone system using artificial intelligence techniques

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

This work presents a power operation optimization of photovoltaic stand alone system using artificial intelligence techniques, via a optimum voltage estimator and control systems to maintain the photovoltaic generator in the maximum power point. A Fuzzy Systems is implemented to estimate from instantaneus radiation and room temperature, the optimum voltage of operation of photovoltaic generator. In order to maitain in this found optimum power point, independent of load variations, is used a neural controller that acts at the charge/discharge of the battery with the objective at compensating or absorving the exceeding or deficiency instantaneous current calculated from balance of the consumption and the photovoltaic generator. The neural controller use optimum voltage from Fuzzy estimator, load current and battery current, to control the DC-DC converter, to estimate the battery SOC and inverter modulation indice. Based on simulation results, the method was found to be effective. It also has advantages such as simplicities and easy implementation.

ASSUNTO(S)

sistema de energia solar sistemas fuzzy photovoltaic systems redes neurais maximum power optimum voltage potencia maxima sistemas eletricos de potencia fuzzy systems tensao otima neural systems

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