A method of controlling a battery system having a battery unit and a controller, the method including checking, by the controller, a voltage deviation between a plurality of battery modules of the battery unit, and, when a voltage deviation between the plurality of battery modules is greater than a preset reference value, performing, by the controller, voltage balancing via energy movement between the battery modules by controlling a plurality of first relays to be selectively closed and controlling a plurality of second relays to be opened.
BATTERY SYSTEM AND METHOD FOR CONTROLLING THE SAME
2020-03-26
Patent
Electronic Resource
English