POWER-SUPPLY SYSTEM, POWER-SUPPLY DEVICE AND POWER-SUPPLY METHOD

• US 20120313567A1
• Filed: 05/14/2012
• Published: 12/13/2012
• Est. Priority Date: 06/09/2011
• Status: Active Grant

• Current Assignee: Next One Create, Ltd.
• Original Assignee: Next One Create, Ltd.
• Inventors: ICHIKAWA, Kuniyoshi
• Granted Patent: US 9,118,211 B2
• Time in Patent Office: Days
• US Class Current: 320/101
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H02J 1/12 Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
• CPC Class Codes: H02J 2300/24 of photovoltaic origin
• CPC Class Codes: H02J 3/34 Arrangements for transfer of electric power between networks of substantially different frequency
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: Y02E 10/56 Power conversion systems, e.g. maximum power point trackers
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A plurality of power-supply devices, in which power generated by solar energy is stored, are allowed to exchange power among themselves. Power generated by a solar panel connected to a first power-supply device is stored in a power storage section of the first power-supply device. Power supplied by the second power-supply device, which has a power storage section for storing power generated by the solar panel, is stored in the power storage section of first power-supply device. Power stored in the power storage section of the first power-supply device is supplied externally.

Claims

1. A power-supply system having a plurality of power-supply devices for supplying power externally, comprising:

a first power-supply device, which is one of the plurality of the power-supply devices, having a power storage section; and

a second power-supply device, which is one of the plurality of power-supply devices and different from the first power-supply device, having a power storage section,

wherein the power storage section of the first power-supply device stores power that is generated by a solar panel connected to the first power-supply device and power that is generated by a solar panel connected to the second power-supply device, stored in the power storage section of the second power-supply device, and supplied from the power storage section of the second power-supply device.

2. The power-supply system according to claim 1,

wherein each of the plurality of power-supply devices includes a solar panel and a power storage section, and

wherein the power storage section of the first power-supply device, which is one of the plurality of the power-supply devices, stores the power that is generated by the solar panel of the first power-supply device and the power that is generated by the solar panel of the second power-supply device, stored in the power storage section of the second power-supply device, and supplied from the power storage section of the second power-supply device.

3. The power-supply system according to claim 1,

wherein the power storage section of the first power-supply device stores, from the power storage section of the second power-supply device, power that has not been supplied to the external device and remained in the power storage section of the second power-supply device after the second power-supply device supplies power to the external device, a portion of power stored in the external device being supplied from the second power-supply device before the first power-supply device supplying power to the external device.

4. The power-supply system according to claim 1,

wherein the plurality of power-supply devices supply power to a stage set used in a plurality of performances,

wherein each of the plurality of power-supply devices includes a storage section for storing power generated by a solar panel,

wherein, in parallel with setting up the first power-supply device, which is one of the plurality of power-supply devices, so as to supply power to the stage set used in a first performance that is one of the plurality of performances, the power storage section of the second power-supply device, which is one of the plurality of power-supply devices and different from the first power-supply device, stores power generated by the solar panel,

wherein, at the first performance, the first power-supply device supplies to the stage set a portion of power stored in the power storage section of the first power-supply device,

wherein, after the first performance ends and before a second performance to be held after the first performance starts, the first power-supply device supplies power remaining in the power storage section of the first power-supply device to the power storage section of the second power-supply device,

wherein, in parallel with setting up the second power-supply device so as to supply power to the stage set at the second performance, the power storage section of the first power-supply device stores power generated by the solar panel,

wherein, at the second performance, the second power-supply device supplies to the stage set a portion of power stored in the power storage section of the second power-supply device,

wherein, after the second performance ends and before a third performance to be held after the second performance starts, the second power-supply device supplies power remaining in the power storage section of the second power-supply device to the power storage section of the first power-supply device,

wherein, at the third performance, the first power-supply device supplies to the stage set a portion of power stored in the power storage section of the first power-supply device.

5. The power-supply system according to claim 4,

wherein each of the plurality of power-supply devices includes a solar panel.

6. A power-supply device that is included in a power-supply system having a plurality of power-supply devices that supply power externally, the system comprising:

a first power-supply device having a power storage section; and

a second power-supply device, which is different from the first power-supply device, having a power storage section,

wherein the power storage section of the first power-supply device stores power that is generated by a solar panel connected to the first power-supply device and power that is generated by a solar panel connected to the second power-supply device, stored in the power storage section of the second power-supply device, and supplied from the power storage section of the second power-supply device.

7. A power-supply method, comprising:

a generated power storing step of storing power generated by a solar panel connected to a first power-supply device into a power storage section of the first power-supply device;

a supplied power storing step of storing power supplied by a second power-supply device, which has a power storage section for storing power generated by a solar panel, into the power storage section of the first power-supply device; and

a power supplying step of externally supplying the power stored in the power storage section of the first power-supply device in the generated power storing step and the supplied power storing step.

8. The power-supply method according to claim 7,

wherein in the supplied power storing step, power that is not supplied externally and remains in the power storage section of the second power-supply device is stored in the power storage section of the first power-supply device.

9. The power-supply method according to claim 8, the method further comprising:

after the supplied power storing step, storing power generated by the solar panel connected to the second power-supply device into the power storage section of the second power-supply device;

storing, into the power storage section of the second power-supply device, power that is remaining in the power storage section of the first power-supply device and not supplied externally after the power generated by the solar panel connected to the second power-supply device is stored in the power storage section of the second power-supply device; and

externally supplying the power stored in the power storage section of the second power-supply device.

10. The power-supply method according to claim 8,

wherein, in the power supplying step, after the second power-supply device supplies the power to the external device, the power stored in the power storage section of the first power-supply device is supplied to the external device in which a portion of power stored in the power storage section of the second power-supply device is supplied.

11. The power-supply method according to claim 7,

wherein the power generated by the solar panel is stored in the power storage section outdoors,

and wherein the power-supply method further comprises a step of moving the power-supply device from outdoors to indoors, the power storage section of the power-supply device storing the power generated by the solar panel,

and wherein the power stored in the power storage section is externally supplied in an indoor area.

12. A power-supply method for using a power-supply system including a plurality of power-supply devices that supply power to a stage set used in a plurality of performances, each of the plurality of power-supply devices having a power storage section for storing power generated by a solar panel, the method comprising:

in parallel with setting up the first power-supply device, which is one of the plurality of power-supply devices, so as to supply power to the stage set used in a first performance that is one of the plurality of performances, storing power generated by the solar panel into the power storage section of the second power-supply device, which is one of the plurality of power-supply devices and different from the first power-supply device;

at the first performance, supplying to the stage set a portion of power stored in the power storage section of the first power-supply device;

after the first performance ends and before a second performance to be held after the first performance starts, supplying power remaining in the power storage section of the first power-supply device to the power storage section of the second power-supply device;

in parallel with setting up the second power-supply device so as to supply power to the stage set at the second performance, storing the power generated by the solar panel into the power storage section of the first power-supply device,

at the second performance, supplying to the stage set, using the second power-supply device, a portion of power stored in the power storage section of the second power-supply device;

after the second performance ends and before a third performance to be held after the second performance starts, supplying, using the second power-supply device, power remaining in the power storage section of the second power-supply device to the power storage section of the first power-supply device; and

at the third performance, supplying to the stage set, using the first power-supply device, a portion of power stored in the power storage section of the first power-supply device.

13. The power-supply method according to claim 12,

wherein the power generated by the solar panel is stored in the power storage section outdoors,

and wherein the power-supply method further comprises a step of moving the power-supply device from outdoors to indoors, the power storage section of the power-supply device storing the power generated by the solar panel,

and wherein the power stored in the power storage section is supplied to the stage set in indoor areas.