Power consumption management system, and power consumption manager, power consumption management method, power supply manager, and power supply management method, which are used for the power consumption management system

• US 8,989,911 B2
• Filed: 03/02/2011
• Issued: 03/24/2015
• Est. Priority Date: 04/28/2010
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Takagi, Yasuo, Nishimura, Nobutaka, Iino, Yutaka, Mitsumoto, Kenji, Murayama, Dai, Ooba, Yoshikazu, Murai, Masahiko, Iwabuchi, Kazunori
• Primary Examiner(s): ORTIZ RODRIGUEZ, CARLOS R
• Application Number:
  US13/038,963
• Publication Number:
  US 20110270459A1
• Time in Patent Office: 1,483 Days
• Field of Search: 700/286, 700/291, 700/295, 700/297
• US Class Current: 700/295
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 50/06 Energy or water supply
• 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 13/00022 using wireless data transmission
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• 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: Y02P 80/10 Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
• CPC Class Codes: Y02P 80/14 District level solutions, i.e. local energy networks
• CPC Class Codes: Y02P 90/82 Energy audits or management systems therefor
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 40/126 using wireless data transmission

Abstract

A power consumption management system includes power consumption managers and a power supply manager. Each of the power consumption managers creates changeable power amount information with respect to a planned value of power consumption for each predetermined time range in a preset predetermined period in future, the planned value being related to a load of each piece of equipment in a building as a monitoring target. The power supply manager is connected to each of the power consumption managers through a network, decides a power change request amount for each building based on the created changeable power amount information, and transmits the decided power change request amount to each of the power consumption managers for the purpose of notification.

Claims

1. A power consumption management system for managing power consumption of one or more structures as management targets, comprising:

a power supply manager that manages power supply to each of the structures; and

a plurality of power consumption managers each placed for each of the structures in order to manage the power consumption regarding a load of equipment of each of the structures, the one or more power consumption managers connected to the power supply manager through a network, wherein

the power supply manager comprises;

a management unit that determines whether or not it is necessary to request a change of the power consumption for the structures;

a request unit that transmits a changeable power amount acquisition request to the plurality of power consumption managers when the management unit determines that it is necessary to request the change of the power consumption for the structures; and

a notification unit that acquires changeable power amount information transmitted from each of the plurality of power consumption managers based on the changeable power amount acquisition request transmitted from the request unit, decides a power change request amount for each of the structures based on a plurality of changeable power amount information acquired from the plurality of power consumption managers, and transmits the decided power change request amount to each of the plurality of power consumption managers for a purpose of notification, the changeable power amount information including a range in which a power consumption is changeable, and

each of the plurality of power consumption managers comprises;

an information creation unit that, upon receiving the changeable power amount information acquisition request transmitted from the power supply manager, creates the changeable power amount information with respect to a planned value of the power consumption for each predetermined time range in a preset predetermined period in future, the planned value being related to the load of the equipment of each of the structures, and transmits the created changeable power amount information to the power supply manager; and

a control unit that acquires the power change request amount transmitted from the power supply manager based on the changeable power amount information of the power consumption, the changeable power amount information being transmitted from the information creation unit, decides an operation control amount of the load of the equipment of each of the structures based on the acquired power change request amount, and controls the applying load of the equipment.

2. A power consumption manager that is connected through a network to a power manager managing power supply to one or more structures as management targets, and is placed for each of the structures in order to manage power consumption regarding a load of equipment of each of the structures, the power consumption manager comprising:

an information creation unit that, upon acquiring a changeable power amount information acquisition request for requesting a change of the power consumption, the changeable power amount information acquisition request being transmitted from the power supply manager, creates changeable power amount information with respect to a planned value of the power consumption for each predetermined time range in a preset predetermined period in future, the planned value being related to the load of the equipment of each of the structures as a monitoring target, and transmits the created changeable power amount information to the power supply manager, the chargeable power amount information including a range in which a power consumption is changeable; and

a control unit that acquires a power change request amount decided by the power supply manager based on a plurality of changeable power amount information, one of the plurality of changeable power amount information being transmitted from the information creation unit, decides an operation control amount of the load of the equipment of each of the structures based on the acquired power change request amount, and controls the applying load of the equipment.

3. The power consumption manager according to claim 2, wherein

the preset predetermined period in the future is 24 hours in a next day, a time from a current point of time to 24 o'"'"'clock in this day, 24 hours in a day in one week after this day, or 168 hours from the next day to one week ahead, and

the predetermined time range is a 30-minute range or a one-hour range.

4. The power consumption manager according to claim 2 or 3, wherein

the changeable power amount information created by the information creation unit includes ranges divided into a plurality of levels.

5. A power consumption management method by a power consumption manager that is connected through a network to a power supply manager managing power supply to one or more structures as management targets, and is placed for each of the structures in order to manage power consumption regarding a load of equipment of each of the structures, the power consumption management method comprising:

a first step of, upon acquiring a changeable power amount information acquisition request for requesting a change of the power consumption, the changeable power amount information acquisition request being transmitted from the power supply manager, creating changeable power amount information with respect to a planned value of the power consumption for each predetermined time range in a preset predetermined period in future, the planned value being related to the load of the equipment of each of the structures as a monitoring target, and transmitting the created changeable power amount information to the power supply manager, the changeable power amount information including a range in which a power consumption is changeable; and

a second step of acquiring a power change request amount decided by the power supply manager based on a plurality of changeable power amount information of the power consumption, one of the plurality of changeable power amount information being transmitted in the first step, deciding an operation control amount of the load of the equipment of each of the structures based on the acquired power change request amount, and controlling the applying load of the equipment.

6. A power supply manager that is connected through a network to a plurality of power consumption managers managing power consumption regarding a load of equipment of each of a plurality of structures as management targets, the plurality of power consumption managers being placed for the structures, the power supply manager managing power supply to the structures comprising:

a management unit that determines whether or not it is necessary to request a change of the power consumption for the structures;

a request unit that transmits a changeable power amount acquisition request to the plurality of power consumption managers when the management unit determines that it is necessary to request the change of the power consumption for the structures; and

a notification unit that acquires a plurality of changeable power amount information created in the plurality of power consumption managers based on the changeable power amount acquisition request transmitted from the request unit, the changeable power amount information including a range in which a power consumption is changeable and being with respect to a planned value of the power consumption regarding the load of the equipment of each of the structures as a monitoring target in a preset predetermined period in future, decides a power change request amount for each of the structures based on the plurality of changeable power amount information acquired from the plurality of power consumption managers, and transmits the decided power change request amount to each of the power consumption managers for a purpose of notification.

7. A power supply management method by a power supply manager that is connected through a network to a plurality of power consumption managers each managing power consumption regarding a load of equipment of each of one or more structures as management targets, each of the plurality of power consumption managers being placed for each of the structures, the power supply management method managing power supply to each of the structures comprising:

a first step of determining whether or not it is necessary to request a change of the power consumption for the structures;

a second step of transmitting a changeable power amount acquisition request to the plurality of power consumption managers when the first step determines that it is necessary to request the change of the power consumption for the structures; and

a third step of acquiring a plurality of changeable power amount information created in the plurality of power consumption managers based on the acquired changeable power amount acquisition request transmitted in the second step, the changeable power amount information including a range in which a power consumption is changeable and being with respect to a planned value of the power consumption regarding the load of the equipment of each of the structures as a monitoring target in a preset predetermined period in future, deciding a power change request amount for each of the structures based on the plurality of changeable power amount information, and transmitting the decided power change request amount to each of the one or more power consumption managers for a purpose of notification.