A Maximum Power Point Tracking Algorithm for Photovoltaic Systems under Partially Shaded Conditions

En este articulo se propone una modificacion al algoritmo de perturbar y observar tradicional utilizado para el seguimiento del punto de maxima potencia en sistemas fotovol-taicos. El trabajo se encuentra justificado en la necesidad de disponer de algoritmos con los cuales encontrar el maximo global de potencia en paneles solares fotovoltaicos en conexion serie cuando estan expuestos a condiciones de sombras parciales. El algoritmo propuesto realiza el seguimiento del maximo global de potencia y evita la busqueda iterativa previa en maximos locales. El desempeno del algoritmo se evalua por medio de simulaciones en el software PSIM y su funcionamiento se compara con el algoritmo de perturbar y observar tradicional, donde se evidencia la eficacia del algoritmo modificado en el seguimiento del maximo global bajo diferentes condiciones no uniformes de irradiancia y temperatura en el conjunto de paneles.

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