STORAGE BATTERY CONTROL DEVICE, CHARGING STATION, AND STORAGE BATTERY CONTROL METHOD
First Claim
1. A storage battery control device comprising:
- a calculation unit which calculates a voltage drop caused to an electric power system when a storage battery is connected to the system based on limitation time loaded state information regarding a loaded state in which a load current is applied from the electric power system to the storage battery via a load limiting element; and
a control unit which outputs a control command signal based on the calculated voltage drop to a control device which controls a charging load on the storage battery.
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Accused Products
Abstract
The battery charging of electric vehicles, etc. is controlled so that the impact on the electric power system is lightened even when a lot of electric vehicles, etc. start the charging all at once. A device for controlling an electricity storage device installed in an electric vehicle or the like calculates a voltage drop by applying a load current at the time of performing the charging of the electricity storage device, and limits the charging quantity of the storage battery (installed in the electric vehicle or the like) based on the calculated voltage drop so that the voltage drop of the electric power system remains less than a prescribed level. Consequently, it becomes possible to reduce the voltage fluctuation around each of the electric vehicles, etc. that is about to execute the charging in cases where a lot of electric vehicles, etc. start the charging all at once.
26 Citations
12 Claims
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1. A storage battery control device comprising:
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a calculation unit which calculates a voltage drop caused to an electric power system when a storage battery is connected to the system based on limitation time loaded state information regarding a loaded state in which a load current is applied from the electric power system to the storage battery via a load limiting element; and a control unit which outputs a control command signal based on the calculated voltage drop to a control device which controls a charging load on the storage battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A storage battery control device comprising:
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a calculation unit which calculates a voltage drop caused to an electric power system when a storage battery installed in an electric vehicle is connected to the system based on limitation time loaded state information regarding a loaded state in which a load current is applied from the electric power system to the storage battery via a load limiting element; and a control unit which controls the amount of the electric power supplied to the storage battery based on the calculated voltage drop.
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11. A charging station for charging a storage battery of an electric vehicle with electricity supplied from an electric power system, comprising:
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a calculation unit which calculates a voltage drop caused to the electric power system when the storage battery of the electric vehicle is connected to the system based on limitation time loaded state information regarding a loaded state in which a load current is applied from the electric power system to the storage battery via a load limiting element; and a control unit which controls the charging of the storage battery of the electric vehicle from the electric power system based on the calculated voltage drop.
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12. A storage battery control method comprising the steps of:
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calculating a voltage drop caused to an electric power system when a storage battery is connected to the system based on limitation time loaded state information regarding a loaded state in which a load current is applied from the electric power system to the storage battery via a load limiting element; and outputting a control command signal for controlling a charging load on the storage battery based on the calculated voltage drop.
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Specification