Power supply apparatus and charge-discharge control method
AssigneeFujitsu Limited
InventorShinya Miyata
Life of this patent
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Abstract
LICs are grouped into a plurality of LIC groups. Switches switch a power-feed path to allow charging and discharging to be performed for a combination of the LIC groups. A life diagnostic unit obtains the lives of the LICs. A charge-discharge priority controller sets a priority of each of the LIC groups based on the lives of the respective LICs. A charge-discharge managing unit selects one or more of the LIC groups for which charging and discharging are performed, based on the priority set by the charge-discharge priority controller and supplied power demanded during discharging, and controls the switches to allow charging and discharging to be performed for a combination of the selected one or more of the LIC groups.
Claims6
A power supply apparatus comprising:
- a plurality of power storage devices that are grouped into a plurality of sets;
- a switching unit that switches a power-feed path to allow charging and discharging to be performed for a combination of the sets;
- a life diagnostic unit that obtains lives of the power storage devices;
- a priority setting unit that sets a priority of each of the sets based on the lives of the respective power storage devices;
- and
- a charge-discharge managing unit that selects one or more of the sets for which charging and discharging are performed, based on the priority set by the priority setting unit and supplied power demanded during discharging, and that controls the switching unit to allow charging and discharging to be performed for a combination of selected one or more of the sets.
A charge-discharge control method of a power supply apparatus including a plurality of power storage devices grouped into a plurality of sets and a switch that switches a power-feed path to allow charging and discharging to be performed for a combination of the sets, the method comprising:
- obtaining lives of the power storage devices;
- setting a priority of each of the sets based on the lives of the power storage devices;
- selecting one or more of the sets for which charging and discharging are performed, based on the set priority and supplied power demanded during discharging;
- and
- controlling the switch to allow charging and discharging to be performed for a combination of the selected one or more of the sets.
Dependencies are inferred from the claim text.