Title :
Small signal modeling of diode in a parallel module subjected to partial shading
Author :
Buddala, Santhoshi Snigdha ; Vemuru, Srinivasa ; Devabhaktuni, Vijay
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Toledo, Toledo, OH, USA
Abstract :
Parallel connection of solar cells results in a very small difference in the internal p-n junction voltages when operated under partial shaded conditions. A small signal model is proposed in this paper to analyze the changes in the module parameters of parallel cells operating under this conditions. From the analysis it is observed that the maximum power for a parallel configured solar module is obtained at a fixed output resistance under varied shaded conditions. Circuit simulations validated the model implemented in Matlab.
Keywords :
equivalent circuits; semiconductor diodes; solar cells; diode; internal p-n junction voltage; maximum power; parallel module; partial shading; small signal modeling; solar cell parallel connection; Analytical models; Computer architecture; Integrated circuit modeling; Load modeling; Mathematical model; Photovoltaic cells; Resistance;
Conference_Titel :
Electro/Information Technology (EIT), 2013 IEEE International Conference on
Conference_Location :
Rapid City, SD
Print_ISBN :
978-1-4673-5207-9
DOI :
10.1109/EIT.2013.6632680
