POWER STORAGE SYSTEM AND DISCHARGE CONTROL METHOD OF THE POWER STORAGE SYSTEM
First Claim
1. A power storage system which supplies power to a load by discharging the power from a storage battery, comprising:
- a plurality of storage batteries connected in parallel,a storage battery device at least setting an output voltage value at discharge to each of the plurality of storage batteries, andwherein said storage battery device includes,a discharge control circuit configured to assign at least one storage battery of the plurality of storage batteries for a master based on at least a battery residual capacity or a battery voltage and set the output voltage value so that the output voltage value differs between the master and the other storage batteries.
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Accused Products
Abstract
The present invention achieves a balanced discharging in a power storage system having a plurality of storage batteries connected in parallel. A power storage system comprises a plurality of storage batteries 100a-100f connected in parallel, a storage battery device 120 at least setting an output voltage value at discharge to each of the plurality of storage batteries 100a-100f. The storage battery device 120 includes a discharge control circuit 121 configured to assign at least one storage battery of the plurality of storage batteries for a master based on at least a battery residual capacity or a battery voltage and set the output voltage value so that the output voltage value differs between the master and the storage battery.
17 Citations
18 Claims
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1. A power storage system which supplies power to a load by discharging the power from a storage battery, comprising:
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a plurality of storage batteries connected in parallel, a storage battery device at least setting an output voltage value at discharge to each of the plurality of storage batteries, and wherein said storage battery device includes, a discharge control circuit configured to assign at least one storage battery of the plurality of storage batteries for a master based on at least a battery residual capacity or a battery voltage and set the output voltage value so that the output voltage value differs between the master and the other storage batteries. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A discharge control method of a plurality of storage batteries connected in parallel, the method comprises steps of:
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assigning at least one storage battery of the plurality of storage batteries to a master based on at least a battery residual capacity or a battery voltage, and setting at least the output voltage value to each of the plurality of storage batteries so that the output voltage value differs between the master and the other storage batteries. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification