Fehlerreaktions-Bypass-System für eine Energiespeicherbank

Details

Veröffentlichungs-Nr.

EP4170852

Aktenzeichen

EP21204215

Anmeldetag

22. Oktober 2021

Veröffentlichung

26. April 2023

Rechtsraum

EP

IPC

H02J7/00

Abstract

An energy storage system (100) for providing electrical energy to a power grid, the system comprising an energy storage bank (102) and a controller (104) for controlling operation of the energy storage system. The energy storage bank comprises a plurality of storage strings (106) connected in parallel, wherein a storage string comprises a plurality of energy storage units (108) connected in series. An energy storage unit comprises a plurality of energy storage modules (110), a fault switch (112) configured to electrically connect the plurality of energy storage modules to a neighbouring energy storage unit when the fault switch is closed, and electrically disconnect the plurality of energy storage modules from the neighbouring energy storage unit when the fault switch is open, and a bypass switch (114) configured to bypass the plurality of energy modules. The controller is configured to detect a fault in an energy storage unit and, in response to detecting the fault, open the fault switch and close the bypass switch.

Anmelder

Firmen

Hitachi Energy Ltd
Hitachi Energy Switzerland AG

Land

🇨🇭 Schweiz

Fachgebiete