Demand-response system

Patent metadata

Field	Value
Publication number	US-2016123644-A1
Application number	US-201414894477-A
Country	US
Kind code	A1
Filing date	May 13, 2014
Priority date	May 31, 2013
Publication date	May 5, 2016
Grant date	—

Abstract

A demand-response system includes first and second aggregators and a power aggregator. The first aggregator performs demand-response-related control of a first heating device group including a heat pump device, and the second aggregator performs demand-response-related control of a second heating device group. The power aggregator sends a second power adjustment request to the first and second aggregators using a command being common to the first and second aggregators. In accordance with the second power adjustment request, the first aggregator performs demand-response-related control of the first heating device group using a first dedicated command, and the second aggregator performs demand-response-related control of the second heating device group using a second dedicated command that is different from the first dedicated command.

First claim

1 . A demand-response system comprising:
a first aggregator apparatus configured to perform demand-response-related control of a first device group including a first heat pump device; a second aggregator apparatus configured to perform demand-response-related control of a second device group different from the first device group; and a first upper-tier aggregator apparatus configured to send an energy adjustment request to the first aggregator apparatus and the second aggregator apparatus using a command being common to the first aggregator apparatus and the second aggregator apparatus, the first aggregator apparatus being configured to perform demand-response-related control of the first device group installed in a plurality of buildings using a first dedicated command for the first device group in accordance with the energy adjustment request, the second aggregator apparatus being configured to perform demand-response-related control of the second device group installed in a plurality of buildings using a second dedicated command for the second device group in accordance with the energy adjustment request, and the second dedicated command being different from the first dedicated command.

2 . The demand-response system of claim 1 , wherein
the demand-response-related control of the first device group includes at least one of
control of storing heat in a heat reservoir in accordance with the energy adjustment request, and
control of releasing heat from the heat reservoir in accordance with the energy adjustment request.

3 . The demand-response system of claim 2 , wherein
the demand-response-related control of the first device group includes at least one of
control of reducing a power usage of the first heat pump device,
control of increasing the power usage of the first heat pump device,
control of stopping the first heat pump device, and
control of starting the first heat pump device.

4 . The demand-response system of claim 1 , wherein
the first upper-tier aggregator apparatus is configured
to distribute a target adjustment amount of power usage to the first aggregator apparatus and the second aggregator apparatus, and
to send the distributed target adjustment amounts as a first request amount and a second request amount, respectively, to the first aggregator apparatus and the second aggregator apparatus, together with the energy adjustment request;
the first aggregator apparatus is configured to distribute the first request amount to individual devices in the first device group, and to perform demand-response-related control of the first device group based on results of distributing the first request amount; and the second aggregator apparatus is configured to distribute the second request amount to individual devices in the second device group, and to perform demand-response-related control of the second device group based on results of distributing the second request amount.

5 . The demand-response system 4 , further comprising
a second upper-tier aggregator apparatus configured to send the target adjustment amount to the first upper-tier aggregator apparatus, the first device group including solely a plurality of the first heat pump devices, the second device group including solely a plurality of second heat pump devices, and the first heat pump devices and the second heat pump devices being a same type of heat pump device.

6 . The demand-response system of claim 1 , wherein
the second device group includes energy storing devices.

7 . The demand-response system of claim 6 , wherein
the second device group includes devices having a storage battery.

8 . The demand-response system of claim 2 , wherein
the first upper-tier aggregator apparatus is configured
to distribute a target adjustment amount of power usage to the first aggregator apparatus and the second aggregator apparatus, and
to send the distributed target adjustment amounts as a first request amount and a second request amount, respectively, to the first aggregator apparatus and the second aggregator apparatus, together with the energy adjustment request;
the first aggregator apparatus is configured to distribute the first request amount to individual devices in the first device group, and to perform demand-response-related control of the first device group based on results of distributing the first request amount; and the second aggregator apparatus is configured to distribute the second request amount to individual devices in the second device group, and to perform demand-response-related control of the second device group based on results of distributing the second request amount.

9 . The demand-response system of claim 2 , wherein
the second device group includes energy storing devices.

10 . The demand-response system of claim 3 , wherein
the first upper-tier aggregator apparatus is configured
to distribute a target adjustment amount of power usage to the first aggregator apparatus and the second aggregator apparatus, and
to send the distributed target adjustment amounts as a first request amount and a second request amount, respectively, to the first aggregator apparatus and the second aggregator apparatus, together with the energy adjustment request;
the first aggregator apparatus is configured to distribute the first request amount to individual devices in the first device group, and to perform demand-response-related control of the first device group based on results of distributing the first request amount; and the second aggregator apparatus is configured to distribute the second request amount to individual devices in the second device group, and to perform demand-response-related control of the second device group based on results of distributing the second request amount.

11 . The demand-response system of claim 3 , wherein
the second device group includes energy storing devices.

12 . The demand-response system of claim 4 , wherein
the second device group includes energy storing devices.

Assignees

• Daikin Ind Ltd

Inventors

• Yoshimi Manabu
• Yamaguchi Takahiro
• Mikami Hiroei

Classifications

• H02J2105/42

  Home appliances · CPC title

• H02J13/12

  Monitoring network conditions, e.g. electrical magnitudes or operational status · CPC title

• H02J13/14 Primary

  the power network being locally controlled, e.g. home energy management systems [HEMS] · CPC title

• Y04S20/244

  the home appliances being or involving heating ventilating and air conditioning [HVAC] units · CPC title

• Y04S20/242

  Home appliances · CPC title