Photovoltaic array fault positioning method and device based on photovoltaic module I-V curve reconstruction

The invention provides a photovoltaic array fault positioning method and device based on photovoltaic module I-V curve reconstruction, and the method comprises the steps: obtaining the actual operation current data and voltage data of a photovoltaic array, and the actual operation voltage time domai...

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Bibliographische Detailangaben
Hauptverfasser:	DING KUN, LIU FENG, YANG ZENAN, ZHANG JINGWEI, SU YISHENG, FU BINBIN, CHEN XIHUI, YE HUIRAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	The invention provides a photovoltaic array fault positioning method and device based on photovoltaic module I-V curve reconstruction, and the method comprises the steps: obtaining the actual operation current data and voltage data of a photovoltaic array, and the actual operation voltage time domain signal of a photovoltaic module; obtaining an effective voltage time-domain signal of actual operation of the photovoltaic module according to the voltage time-domain signal of the photovoltaic module; obtaining an effective current time domain signal of the actual operation of the photovoltaic module according to the current data and the voltage data of the actual operation of the photovoltaic array; reconstructing an I-V curve of the photovoltaic module according to the effective voltage time-domain signal and the effective current time-domain signal of the actual operation of the photovoltaic module; and positioning the fault of the photovoltaic module according to the photovoltaic module I-V curve. According