Simulation of I–V characteristics of a PV module with shaded PV cells |
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Authors: | Hajime Kawamura Kazuhito Naka Norihiro Yonekura Sanshiro Yamanaka Hideaki Kawamura Hideyuki Ohno Katsuhiko Naito |
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Affiliation: | Department of Electrical and Electronic Engineering, Meijo University, 1-501, Shiogamaguchi, Tempaku-ku, Nagoya 468-8502, Japan |
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Abstract: | The authors are studying a diagnostic method of a PV power generating system. We consider that the change of I–V characteristics can be utilized for the diagnosis. However, the report on the change of I–V characteristics is very little. In this paper, we investigate the relation between the output lowering due to shaded PV cells and the change of I–V characteristics, utilizing the computer simulation. It was proven from the simulation that I–V characteristics are changed by the condition of the shadow, which covered the module. The change of I–V characteristics of a PV module with shaded PV cells is discussed by the shift of the avalanche breakdown voltage of shaded PV cells. |
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Keywords: | PV module Avalanche breakdown voltage I– V characteristics Diagnosis Shadow |
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