System and method for accommodating power and non-transitory computer-readable medium storing program

• US 9,915,927 B2
• Filed: 08/13/2013
• Issued: 03/13/2018
• Est. Priority Date: 10/11/2012
• Status: Expired due to Fees

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Kobayashi, Noriaki
• Primary Examiner(s): Fennema, Robert
• Assistant Examiner(s): STEVENS, THOMAS H
• Application Number:
  US14/434,948
• Publication Number:
  US 20150253744A1
• Time in Patent Office: 1,673 Days
• Field of Search: 700295, 700297
• CPC Class Codes: G05B 11/012 details of the transmission means
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: H02J 3/46 Controlling of the sharing of output between the generators, converters, or transformers

Abstract

A power management apparatus (120) includes management information storage unit (121) capable of storing a condition under which each consumer management apparatus (100) receives power (first condition) and a condition under which each consumer management apparatus (100) supplies power (second condition), power control unit (123) for supplying or received power to or from the consumer management apparatuses (110), and information control unit (122) for controlling the consumer management apparatus (110) and power control unit (123). Each consumer management apparatus (110) includes a distributed power supply (111), a load (112), and control unit (113) that controls the distributed power supply 112. When the information control unit (122) detects that one consumer management apparatus (110) has activated the first condition, it requests another consumer management apparatus (100) activating the second condition to supply power and supplies the power to the first consumer management apparatus (110) via the power control unit (123).

Claims

1. A power accommodation system comprising:

a plurality of consumer management apparatuses forming an autonomously controlled grid; and

a power management apparatus that accommodates power among the consumer management apparatuses, wherein the power management apparatus comprises;

a management information storage unit that stores information related to at least one of first and second conditions in such a manner that the at least one condition is associated with each of the consumer management apparatuses, the first condition being a condition under which each of the consumer management apparatuses receives power, the second condition being a condition under which each of the consumer management apparatuses supplies power,

a power control unit that supplies or receives power to or from the consumer management apparatuses; and

an information control unit that controls the consumer management apparatuses and the power control unit,

when the information control unit detects that a first consumer management apparatus is operating in the first condition, the information control unit requests a second consumer management apparatus operating in the second condition to supply power,

the power control unit supplies power supplied from the second consumer management apparatus to the first consumer management apparatus,

the consumer management apparatuses each comprise

at least one of a distributed power supply that generates power and a load that consumes power, and

a controller that controls the distributed power supply, and

the controller controls power supply to the power management apparatus based on a request from the information control unit and received power from the power control unit.

2. The power accommodation system according to claim 1, wherein

the first condition further comprises energy to be received by each of the consumer management apparatuses, and

the information control unit determines other one or more consumer management apparatuses which should supply power to the first consumer management apparatus and the energy to be supplied by each of the other one or more consumer management apparatuses based on the energy to be received.

3. The power accommodation system of claim 1, wherein

the second condition further comprises the energy that each of the consumer management apparatuses can supply, and the controller of each of the consumer management apparatuses drives the distributed power supply in a state in which a reserve generating capacity corresponding to the energy which can be supplied is reserved and causes the distributed power supply to generate power based on the energy which can be supplied, in response to a request from the information control unit.

4. The power accommodation system of claim 3, wherein

when the information control unit detects that the first consumer management apparatus driving the distributed power supply in a state in which a reserve generating capacity corresponding to the energy which can be supplied is reserved is operating in the first condition, the information control unit supplies power preferentially to the first consumer management apparatus.

5. The power accommodation system of claim 1, wherein the power control unit is a power router capable of outputting received power to one or more specified destinations in specified amounts.

6. The power accommodation system according to claim 5, wherein

the power accommodation system comprises a plurality of power routers connected to one another so that power can be transmitted or received therebetween,

when the information control unit detects that the first consumer management apparatus capable of transmitting or receiving power to or from a first power router is operating in the first condition, the information control unit determines the second consumer control apparatus that can transmit or receive power to or from a second power router is operating in the second condition, calculates a power transmission path from the second power router to the first power router, and notifies said first and second power routers on the power transmission path of the power transmission path, and

said first and second power routers transmit power via the power transmission path.

7. A method for accommodating power used in a power accommodation system, the system comprising a plurality of consumer management apparatuses forming an autonomously controlled grid and a power management apparatus that accommodates power among the consumer management apparatuses, the method comprising:

detecting, by an information control unit of the power management apparatus, that a first consumer management apparatus is operating in a first condition which is a condition under which each of the consumer management apparatuses receives power;

requesting, by the information control unit of the power management apparatus, a second consumer management apparatus operating in the second condition to supply power when the information control unit detects that the first consumer management apparatus is operating in a first condition, wherein the second operating condition is a condition under which each of the consumer management apparatuses supplies power; and

receiving, by power control unit of the power management apparatus, the power from the second consumer management apparatus and supplying the power to the first consumer management apparatus.

8. The method for accommodating power according to claim 7, wherein

the first condition further comprises energy to be received by each of the consumer management apparatuses, and

the requesting includes determining, by the information control unit, other one or more consumer management apparatuses which should supply power to the first consumer management apparatus and the energy to be supplied by each of the other one or more consumer management apparatuses, based on the energy to be received.

9. The method for accommodating power according to claim 7, wherein

the second condition further comprises the energy that each of the consumer management apparatuses can supply, the method further comprising:

causing, by a controller of each of the consumer management apparatuses, the distributed power supply to drive the distributed power supply in a state in which a reserve generating capacity corresponding to the energy which can be supplied is reserved; and

in response to the requesting, causing, by the controller of each of the consumer management apparatuses, the distributed power supply to generate power based on the energy that can be supplied.

10. The method for accommodating power according to claim 9,

wherein when, the supplying includes detecting, by the information control unit, that the first consumer management apparatus driving the distributed power supply is in a state in which a reserve generating capacity corresponding to the energy which can be supplied is reserved, is operating in the first condition, the information control unit supplies power preferentially to the first consumer management apparatus.

11. The method for accommodating power according to claim 7, wherein the power control unit is a power router capable of outputting received power to one or more specified destinations in specified amounts.

12. The method for accommodating power according to claim 9, wherein

a plurality of power routers are connected to one another so that power can be transmitted or received therebetween,

in the detecting step, the information control unit detects that the first consumer management apparatus capable of transmitting or receiving power to or from a first power router is operating in the first condition, and

in the requesting step, the information control unit determines the second consumer control apparatus that can transmit or receive power to or from a second power router is operating in the second condition, calculates a power transmission path from the second power router to the first power router, and notifies said first and second power routers on the power transmission path of the power transmission path, and

in the supplying step, said first and second power routers transmit power via the power transmission path.

13. A non-transitory computer-readable medium storing a program that, when executed by a computer, causes the computer to perform the method according to claim 7.