Converter for performing DC-DC conversion and method for controlling same
AssigneeLG Energy Solution, Ltd.
InventorsJongcheol Kim, Inho Jung
Life of this patent
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Abstract
A DC-DC converter, located between a plurality of batteries and a power conversion system, comprises a primary coil connected to a plurality of battery sources and a secondary coil connected to a load through an output switch set, wherein the primary coil may be connected to the plurality of battery sources through a plurality of input switch sets corresponding to the plurality of battery sources.
Claims14
A DC-DC converter connected between a plurality of battery sources and a power conversion system, the DC-DC converter comprising:
- a primary coil connected to the plurality of battery sources;
- and
- a secondary coil connected to a load through an output switch set,
- wherein the primary coil is connected to the plurality of battery sources through a plurality of input switch sets respectively corresponding to the plurality of battery sources, and
- wherein the converter is configured to perform DC-DC conversion using one input switch set in operation, among the plurality of input switch sets corresponding to the plurality of battery sources, and the output switch set connected to the load during one period of time.
A method for controlling a converter by a controller interworking with the converter connected between a plurality of battery sources and a power conversion system, the method comprising:
- determining a battery source to be operated in one period of time among the plurality of battery sources connected to the converter;
- activating one input switch set, among a plurality of input switch sets, corresponding to the battery source in operation and deactivating other input switch sets, among the plurality of input switch sets, corresponding to the other battery sources among the plurality of battery sources;
- and
- controlling the converter to perform DC-DC conversion using the one input switch set corresponding to the battery source in operation, among the plurality of input switch sets corresponding to the plurality of battery sources, and an output switch set connected to a load during the one period of time.
An energy storage device, comprising:
- a plurality of battery sources;
- a DC-DC converter including:
- a primary coil connected to the plurality of battery sources through a plurality of input switch sets, respectively;
- and
- a secondary coil connected to a load through an output switch set;
- and
- a controller configured to control the DC-DC converter such that the primary coil transmits power from one of the plurality of battery sources to the load,
- wherein the DC-DC converter is configured to perform DC-DC conversion using one input switch set connected to the one of the plurality of battery sources, among the plurality of input switch sets, and the output switch set connected to the load during one period of time.
Dependencies are inferred from the claim text.