Battery system and method of connecting battery module to a battery rack

A battery system comprises a battery rack in which a plurality of battery modules are connected in parallel, wherein each of the battery modules is connectable to the battery rack by a connection control system that comprises a first switching circuit connected in parallel with a second switching ci...

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Bibliographische Detailangaben
1. Verfasser:	HWANG, EUI-JEONG
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A battery system comprises a battery rack in which a plurality of battery modules are connected in parallel, wherein each of the battery modules is connectable to the battery rack by a connection control system that comprises a first switching circuit connected in parallel with a second switching circuit and a battery management system BMS, wherein the first switching circuit comprises a first switch and the second switching circuit comprises a second switch in series with a resistive element and the BMS is configured to turn on the second switch to connect the battery module to the battery rack and to turn on the first switch when the difference in voltage between the battery module and the battery rack is at or below a predetermined value.