DC-COUPLED PHOTOVOLTAIC POWER GENERATION SYSTEM, OPERATING STATE SWITCHING METHOD AND DEVICE OF DC-COUPLED PHOTOVOLTAIC POWER GENERATION SYSTEM

A DC-coupled photovoltaic power generation system, an operating state switching method and device of the DC-coupled photovoltaic power generation system are provided according to the present disclosure. The method includes: obtaining photovoltaic energy of the DC-coupled photovoltaic power generatio...

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Bibliographische Detailangaben
Hauptverfasser:	Xia, Tongfei, Lu, Jitao, Wang, Zhengyang, Zhao, Shizun
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A DC-coupled photovoltaic power generation system, an operating state switching method and device of the DC-coupled photovoltaic power generation system are provided according to the present disclosure. The method includes: obtaining photovoltaic energy of the DC-coupled photovoltaic power generation system and determining whether the photovoltaic energy is sufficient, in a case that the DC-coupled photovoltaic power generation system operates in a grid-connected battery priority state; and if it is determined that the photovoltaic energy is insufficient, performing an online switchover operation, where the online switchover operation is used to switch the operating state of the DC-coupled photovoltaic power generation system from the grid-connected battery priority state to a nighttime battery discharge state.