CONTROL SYSTEM, CONTROL APPARATUS, AND CONTROL METHOD

• US 20130314031A1
• Filed: 04/19/2013
• Published: 11/28/2013
• Est. Priority Date: 05/22/2012
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: ISHIBASHI, Yoshihito
• Granted Patent: US 9,608,462 B2
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: H02J 2300/20 The dispersed energy generation being of renewable origin
• CPC Class Codes: H02J 2300/26 involving maximum power point tracking control for photovoltaic sources maximum power point systems in particular G05F1/67
• CPC Class Codes: H02J 2300/28 The renewable source being wind energy wind motors F03D
• CPC Class Codes: H02J 2300/40 wherein a plurality of decentralised, dispersed or local energy generation technologies are operated simultaneously
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• 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 10/76 Power conversion electric or electronic aspects
• CPC Class Codes: Y02E 70/30 Systems combining energy storage with energy generation of non-fossil origin
• CPC Class Codes: Y02P 80/20 using renewable energy

Abstract

There is provided a control system including a plurality of first apparatuses, and at least one second apparatus that is connected to each first apparatus. The first apparatuses include a plurality of conversion units, and each include a control unit controlling an on/off state of each conversion unit by referring to a table. The second apparatus includes a power storage unit and a charging control unit controlling charging of the power storage unit. The conversion units each convert a first voltage supplied from a power generating apparatus to a second voltage according to a magnitude of the first voltage. The second voltage output from at least one of the conversion units is supplied to the second apparatus. The charging control unit controls charging of the power storage unit in accordance with a variation in the second voltage.

Claims

1. A control system comprising:

a plurality of first apparatuses; and

at least one second apparatus that is connected to each of the plurality of first apparatuses,

wherein the plurality of first apparatuses include a plurality of conversion units, and each include a control unit controlling an on/off state of each of the plurality of conversion units by referring to a table,

wherein the at least one second apparatus includes a power storage unit and a charging control unit controlling charging of the power storage unit,

wherein the plurality of conversion units each convert a first voltage supplied from a power generating apparatus to a second voltage according to a magnitude of the first voltage,

wherein the second voltage output from at least one of the plurality of conversion units is supplied to the at least one second apparatus, and

wherein the charging control unit controls charging of the power storage in accordance with a variation in the second voltage.

2. The control system according to claim 1,

wherein an on/off period for each conversion unit is written in the table,

3. The control system according to claim 1,

wherein a maximum number of conversion units capable of being activated is written in the table,

4. The control system according to claim 1,

wherein the table is capable of being updated.

5. The control system according to claim 1,

wherein the control unit changes the table to be referred to in accordance a weather condition.

6. The control system according to claim 1,

wherein the plurality of conversion units are each operable to convert the first voltage in a manner that the second voltage increases when the first voltage increases, and are each operable to convert the first voltage in a manner that the second voltage decreases when the first voltage decreases.

7. The control system according to claim 1,

wherein the charging control unit is operable to pull up a charging rate of the power storage unit when the second voltage increases, and is operable to pull down the charging rate of the power storage unit when the second voltage decreases.

8. A control apparatus comprising:

a plurality of conversion units; and

a control unit controlling an on/off state of each of the conversion units,

wherein the control unit refers to a table in which an on/off period of each of the plurality of conversion units is written to control the on/off state of each of the plurality of conversion units, and

wherein the conversion unit that is switched on by the control unit converts a first voltage supplied from a power generating apparatus to a second voltage according to a magnitude of the first voltage.

9. A method for performing control in a control apparatus, the method comprising:

referring to a table in which an on/off period of a conversion unit is written to control an on/off state of the conversion unit through a control unit; and

converting a first voltage supplied from a power generating apparatus to a second voltage according to a magnitude of the first voltage through the conversion that is switched on by the control unit.