TEMPERATURE CONTROLLING SYSTEM AND METHOD FOR BATTERY
First Claim
1. A temperature controlling system for a battery in an energy storage system, the temperature controlling system comprising:
- a converter comprising a plurality of switches and a converter inductor, the converter being configured to increase or decrease a voltage of the battery;
a DC linker comprising first and second capacitors that are coupled in series and configured to stabilize an output voltage of the converter; and
an inverter comprising a plurality of switches and an inductor, the inverter being configured to invert an input voltage,wherein the inverter further comprises a switch coupled between a terminal of the inductor and a first node between the first and second capacitors of the DC linker to provide a current from the inductor to the battery.
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Abstract
The present invention provides a temperature controlling system for a battery in an energy storage system, the temperature controlling system including: a converter comprising a plurality of switches and a converter inductor, the converter being configured to increase or decrease a voltage of the battery; a DC linker comprising first and second capacitors that are coupled in series and configured to stabilize an output voltage of the converter; and an inverter comprising a plurality of switches and an inductor, the inverter being configured to invert an input voltage, wherein the inverter further comprises a switch coupled between a terminal of the inductor and a first node between the first and second capacitors of the DC linker to provide a current from the inductor to the battery.
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Citations
10 Claims
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1. A temperature controlling system for a battery in an energy storage system, the temperature controlling system comprising:
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a converter comprising a plurality of switches and a converter inductor, the converter being configured to increase or decrease a voltage of the battery; a DC linker comprising first and second capacitors that are coupled in series and configured to stabilize an output voltage of the converter; and an inverter comprising a plurality of switches and an inductor, the inverter being configured to invert an input voltage, wherein the inverter further comprises a switch coupled between a terminal of the inductor and a first node between the first and second capacitors of the DC linker to provide a current from the inductor to the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A temperature controlling method for a battery in an energy storage system comprising:
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sensing a low-temperature state of the battery being maintained for a period of time; removing a coupling between a grid and a load from the energy storage system in response to the low-temperature state of the battery being maintained for the period of time; forming a charging/discharging current path through which current generated in an inductor is provided to the battery; and repetitively performing a charging/discharging operation of the battery through the charging/discharging current path by alternately operating a plurality of switches of an inverter. - View Dependent Claims (9, 10)
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Specification