ENERGY STORAGE SYSTEM, AND DEVICE FOR CONTROLLING GROUND STRUCTURE OF ENERGY STORAGE SYSTEM

According to embodiments of the present disclosure, an energy storage system, including a photovoltaic (PV) system and connected with a power grid, may comprise: a power conversion system (PCS) configured to be connected with the power grid and selectively connected to the photovoltaic system; a fir...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KIM, Jongcheol, JUNG, Inho, MUN, Byeongho
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SYSTEMS FOR STORING ELECTRIC ENERGY TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	According to embodiments of the present disclosure, an energy storage system, including a photovoltaic (PV) system and connected with a power grid, may comprise: a power conversion system (PCS) configured to be connected with the power grid and selectively connected to the photovoltaic system; a first switch configured to selectively connect the photovoltaic system and a direct current (DC) link of the power conversion system; a first ground fault detector including a terminal which is connected to the ground; a second switch selectively configured to connect the photovoltaic system and the other terminal of the first ground fault detector, wherein the second switch is located between the first switch and the photovoltaic system; and a switch controller configured to change a ground structure of at least one of the photovoltaic system, the power conversion system, and a battery system included in the energy storage system and to selectively connect the photovoltaic system and the DC link of the power conversion system, by controlling the first switch and the second switch based on a power generation state of the photovoltaic system.