Failure diagnostic method and failure diagnostic device of solar cell string

A technique that ensures proper failure diagnosis of a solar cell string. A failure diagnostic method and a failure diagnostic device of the solar cell string include an impedance measure, an analyzer, and a determination processor. The analyzer obtains the inductance of the solar cell string based...

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Bibliographic Details
Main Authors Tsuda, Mutsumi, Tokioka, Hidetada, Yura, Shinsuke
Format Patent
LanguageEnglish
Published 10.11.2020
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-REDRADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, E.G. USINGPHOTOVOLTAIC [PV] MODULES
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Summary:A technique that ensures proper failure diagnosis of a solar cell string. A failure diagnostic method and a failure diagnostic device of the solar cell string include an impedance measure, an analyzer, and a determination processor. The analyzer obtains the inductance of the solar cell string based on a relational expression containing an impedance, an inductance, and a frequency in a predetermined equivalent circuit of the solar cell string, and the frequency characteristic of the first impedance measured by the impedance measure. The determination processor conducts failure diagnose for the solar cell string based on the inductance obtained by the analyzer.
Bibliography:Application Number: US201716097005