Power supply control device and power supply control method

• US 9,134,709 B2
• Filed: 09/02/2011
• Issued: 09/15/2015
• Est. Priority Date: 11/09/2010
• 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: Nakamura, Koji, Inaki, Takaaki
• Primary Examiner(s): PATEL, RAMESH B
• Application Number:
  US13/879,252
• Publication Number:
  US 20130218363A1
• Time in Patent Office: 1,474 Days
• US Class Current: 1/1
• CPC Class Codes: G05B 13/02 electric
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/00 Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
• CPC Class Codes: Y04S 20/221 General power management systems
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 Home appliances

Abstract

Provided is a power supply control device capable of reducing power consumption even when the amount of time the electrical equipment is used is indeterminate. This power supply control device (700) controls the supply of power to multiple lines on which electrical equipment is arranged, and has: a power supply control instruction unit (760), which provisionally supplies power to lines to which power is not being supplied; a power calculation unit (730), which determines for each line whether there has been an increase in the power consumption; and a power supply status determination unit (750) which, after power has been supplied provisionally, stops the provisional supply of power to a line when the power consumption on that line has not increased.

Claims

1. A power feed control apparatus that performs power feed control for multiple lines on which pieces of electrical equipment are arranged, the power feed control apparatus comprising:

a power feed control instruction section that performs provisional power feeding for the line to which power is not being fed, among the multiple lines;

a power calculation section that determines whether or not there is an increase in power consumption, for each of the lines; and

a power feed status determination section that, when the line exists in which the power consumption does not increase after the provisional power feeding has been performed, stops the provisional power feeding for the corresponding line.

2. The power feed control apparatus according to claim 1, wherein

when there exist the line in which the power consumption increases after the provisional power feeding has been performed and the line in which the power consumption does not increase after the provisional power feeding has been performed, the power feed status determination section stops the provisional power feeding for the line in which the power consumption does not increase.

3. The power feed control apparatus according to claim 2, further comprising

a sensor status monitoring section that detects that a person moves between multiple rooms, the multiple lines being power feed lines for the pieces of electrical equipment arranged in the multiple rooms, wherein

the power feed control instruction section starts the provisional power feeding when the movement has been detected.

4. The power feed control apparatus according to claim 3, wherein

every time a predetermined time period determined for each of the rooms that is a movement destination candidate elapses since time when the movement has been detected, the power feed status determination section determines whether or not the power consumption increases for the corresponding line, and stops the provisional power feeding according to a result of the determination.

5. The power feed control apparatus according to claim 4, wherein

a value of the predetermined time period for each of the rooms is determined on a basis of the room, and

the power feed status determination section specifies the room that is a start point of the person'"'"'s movement, from an estimated position of the person, and performs the determination according to the predetermined time period that is determined on a basis of the specified room.

6. The power feed control apparatus according to claim 5, wherein

the power feed status determination section specifies the room that is the start point of the movement, according to the power consumption in each of the lines.

7. The power feed control apparatus according to claim 5, wherein

the sensor status monitoring section estimates the position of the person, and

the power feed status determination section specifies the room that is the start point of the movement, according to the estimated position of the person.

8. The power feed control apparatus according to claim 5, wherein

the power feed status determination section stops power feeding for the line corresponding to the room that is the start point of the movement, when the number of rooms in which the power consumption has increased is not smaller than the number of persons existing in the multiple rooms.

9. The power feed control apparatus according to claim 5, still further comprising

an input reception section that obtains a power feeding schedule for each of the lines and/or each piece of the electrical equipment, wherein

the power feed status determination section determines whether or not it is possible to start the provisional power feeding for each of the lines and/or whether or not it is possible to stop the power feeding for each of the lines, according to the obtained power feeding schedule.

10. A power feed control method that performs power feed control for multiple lines on which pieces of electrical equipment are arranged, the power feed control method comprising the steps of:

starting provisional power feeding for the line to which power is not being fed, among the multiple lines;

determining whether or not there is an increase in power consumption, for each of the lines;

determining whether or not there exists the line in which the power consumption does not increase after the provisional power feeding has been performed; and

stopping, when there exists the line in which the power consumption does not increase after the provisional power feeding has been performed, the provisional power feeding for the corresponding line.