Photovoltaic string IV curve fault principal component determination method, system, device and medium

The invention belongs to the technical field of solar power generation, and discloses a photovoltaic string IV curve fault principal component determination method, system and device and a medium. Comprising the following steps: acquiring an IV curve of each photovoltaic string; according to the IV...

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Bibliographische Detailangaben
Hauptverfasser: LUO KE, YAO YONGQIN, WANG ZONGYAO, XU BOFENG, WANG WENBO, YANG WENQIANG, HU SHAOYI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention belongs to the technical field of solar power generation, and discloses a photovoltaic string IV curve fault principal component determination method, system and device and a medium. Comprising the following steps: acquiring an IV curve of each photovoltaic string; according to the IV curve of each photovoltaic string, obtaining characteristic parameters of each photovoltaic string; according to a preset parameter transaction judgment method, obtaining a transaction result of each photovoltaic string; and obtaining the IV curve fault principal component of the photovoltaic string according to the transaction result of each photovoltaic string and the deviation degree of each characteristic parameter of the photovoltaic string. According to the photovoltaic string IV curve fault principal component determination method, the IV curve fault principal component of the photovoltaic string can be accurately determined, the defects of existing photovoltaic string level fault diagnosis are effectively o