POWER SUPPLY DEVICE, POWER STORAGE DEVICE, AND POWER CONTROL DEVICE

• US 20120319642A1
• Filed: 03/23/2011
• Published: 12/20/2012
• Est. Priority Date: 03/24/2010
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Suyama, Atsushi, Shimizu, Atsushi
• Granted Patent: US 9,148,018 B2
• Time in Patent Office: Days
• US Class Current: 320/101
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 7/0031 using battery or load disconnect circuits H02J9/002 takes precedence
• CPC Class Codes: H02J 7/0071 with a programmable schedule
• CPC Class Codes: Y02E 40/70 Smart grids as climate change mitigation technology in the energy generation sector
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Disclosed is a power supply device which acquires data of the amount of environmental load material emitted from a power supply, and controls operations on the basis of the data.

Claims

1-9. -9. (canceled)

10. A power supply device, comprising:

a storing portion that stores emission amount data on an emission amount of an environmental load substance emitted by a predetermined power source when the power source performs power generation;

a power storage portion in which power is charged and from which power is discharged;

an analysis portion that, based on the emission amount data, determines a ranking of periods of time in ascending order of the emission amount of the environmental load substance or a ranking of the periods of time in descending order of the emission amount of the environmental load substance; and

a charging and discharging control portion that assigns to each of the periods of time a level of priority in accordance with which charging is performed such that the lower the emission amount of the environmental load substance is, the higher the level of priority is and charges the power storage portion with power supplied from the predetermined power source in accordance with the level of priority, while it assigns to each of the periods of time a level of priority in accordance with which discharging is performed such that the higher the emission amount of the environmental load substance is, the higher the level of priority is and discharges the power storage portion in accordance with the level of priority.

11. The power supply device according to claim 10, wherein

if a period of time is designated, in which, as a result of charging the power storage portion, a state of charge of the power storage portion reaches a predetermined value, the charging and discharging control portion prevents the power storage portion from being charged, at least in said period of time, with power supplied from the predetermined power source.

12. The power supply device according to claim 10, wherein

if a period of time is designated, in which a number of times of the charging exceeds a predetermined number of times, the charging and discharging control portion prevents the power storage portion from being charged at least in said period of time.

13. The power supply device according to claim 10, wherein

if a period of time is designated, in which as a result of discharging the power storage portion, a state of charge of the power storage portion falls below a predetermined value, the charging and discharging control portion prevents the power storage portion from being discharged at least in said period of time.

14. The power supply device according to claim 10, wherein

an emission amount of the environmental load substance refers to an emission amount of carbon dioxide.

15. The power supply device according to claim 10, further comprising:

a load prediction portion that predicts an amount of power that is to be consumed by a load portion that consumes power supplied thereto,

wherein the power supply device can supply the load portion with power supplied from the power source and with power supplied by discharging the power storage portion, and

based on the amount of power predicted by the load prediction portion, the charging and discharging control portion controls discharging of the power storage portion.

16. The power supply device according to claim 15, further comprising:

a power generation prediction portion that predicts an amount of power that is to be supplied from a different power source than the power source,

wherein the power supply device can supply the load portion with power supplied from the different power source, and

the charging and discharging control portion discharges the power storage portion when an amount of power predicted by the load prediction portion is larger than the amount of power predicted by the power generation prediction portion.

17. The power supply device according to claim 10, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.

18. The power supply device according to claim 11, wherein

if a period of time is designated, in which a number of times of the charging exceeds a predetermined number of times, the charging and discharging control portion prevents the power storage portion from being charged at least in said period of time.

19. The power supply device according to claim 11, wherein

if a period of time is designated, in which as a result of discharging the power storage portion, a state of charge of the power storage portion falls below a predetermined value, the charging and discharging control portion prevents the power storage portion from being discharged at least in said period of time.

20. The power supply device according to claim 12, wherein

if a period of time is designated, in which as a result of discharging the power storage portion, a state of charge of the power storage portion falls below a predetermined value, the charging and discharging control portion prevents the power storage portion from being discharged at least in said period of time.

21. The power supply device according to claim 11, wherein

an emission amount of the environmental load substance refers to an emission amount of carbon dioxide.

22. The power supply device according to claim 12, wherein

an emission amount of the environmental load substance refers to an emission amount of carbon dioxide.

23. The power supply device according to claim 13, wherein

an emission amount of the environmental load substance refers to an emission amount of carbon dioxide.

24. The power supply device according to claim 11, further comprising:

a load prediction portion that predicts an amount of power that is to be consumed by a load portion that consumes power supplied thereto,

wherein the power supply device can supply the load portion with power supplied from the power source and with power supplied by discharging the power storage portion, and

based on the amount of power predicted by the load prediction portion, the charging and discharging control portion controls discharging of the power storage portion.

25. The power supply device according to claim 12, further comprising:

a load prediction portion that predicts an amount of power that is to be consumed by a load portion that consumes power supplied thereto,

wherein the power supply device can supply the load portion with power supplied from the power source and with power supplied by discharging the power storage portion, and

based on the amount of power predicted by the load prediction portion, the charging and discharging control portion controls discharging of the power storage portion.

26. The power supply device according to claim 13, further comprising:

a load prediction portion that predicts an amount of power that is to be consumed by a load portion that consumes power supplied thereto,

wherein the power supply device can supply the load portion with power supplied from the power source and with power supplied by discharging the power storage portion, and

based on the amount of power predicted by the load prediction portion, the charging and discharging control portion controls discharging of the power storage portion.

27. The power supply device according to claim 14, further comprising:

a load prediction portion that predicts an amount of power that is to be consumed by a load portion that consumes power supplied thereto,

wherein the power supply device can supply the load portion with power supplied from the power source and with power supplied by discharging the power storage portion, and

based on the amount of power predicted by the load prediction portion, the charging and discharging control portion controls discharging of the power storage portion.

28. The power supply device according to claim 11, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.

29. The power supply device according to claim 12, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.

30. The power supply device according to claim 13, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.

31. The power supply device according to claim 14, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.

32. The power supply device according to claim 15, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.

33. The power supply device according to claim 16, wherein

when data on an emission amount of the environmental load substance emitted by the power source is acquired, data corresponding to predicted weather is acquired.