Demand-response system

Patent metadata

Field	Value
Publication number	US-9657979-B2
Application number	US-201414894477-A
Country	US
Kind code	B2
Filing date	May 13, 2014
Priority date	May 31, 2013
Publication date	May 23, 2017
Grant date	May 23, 2017

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

What is claim is:

1. A demand-respond system comprising:
a first aggregator apparatus configured to perform demand-response-related control of a first group of devices including a first heat pump device in which control specifications of the devices are standardized;
a second aggregator apparatus configured to perform demand-response-related control of a second group of devices in which control specifications of the devices are standardized, the second group of devices being different from the first group of devices, and
a first upper-tier aggregator apparatus configured to distribute a target adjustment amount of power usage to the first aggregator apparatus and the second aggregator apparatus as a first request amount and a second request amount, respectively, and send an energy adjustment request to the first aggregator apparatus and the second aggregator apparatus which requests the first aggregator apparatus and the second aggregator apparatus to adjust the amount of power usage by the first request amount and the second request amount, respectively, using a command common to the first aggregator apparatus and the second aggregator apparatus,
the control specifications of the first group of devices being different from the control specifications of the second group of devices,
the first aggregator apparatus being configured to distribute the first request amount to individual devices in the first group of devices, determine the control content for each device of the first of devices so that each device adjusts the amount of power usage by the distributed amount, and perform demand-response-related control of the first group of devices installed in a plurality of buildings using a first dedicated command for the first group of devices in accordance with the energy adjustment request,
the second aggregator apparatus being configured to distribute the second request amount to individual devices in the second group of devices, determine the control content for each device of the second group of devices so that each device adjusts the amount of power usage by the distributed amount, and perform demand-response-related control of the second group of devices installed in a plurality of buildings using a second dedicated command for the second group of devices 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 group of devices 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 group of devices 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 further comprising
a second upper-tier aggregator apparatus configured to send the target adjustment amount to the first upper-tier aggregator apparatus,
the first group of devices including solely a plurality of the first heat pump devices,
the second group of devices 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.

5. The demand-response system of claim 1 , wherein the second group of devices includes energy storying devices.

6. The demand-respond system of claim 5 , wherein the second group of devices includes devices having a storage battery.

7. The demand-response system of claim 2 , wherein the second group of devices includes energy storying devices.

8. The demand-response system of claim 3 , wherein the second group of devices includes energy storying devices.

9. The demand-response system of claim 1 , wherein
the first upper-tier aggregator apparatus is configured to distribute the target adjustment amount of power usage to the first aggregator apparatus and the second aggregator apparatus as the first request amount and the second request amount, respectively, based on the current power usage of the first group of devices and the current power usage of the second group of devices,
the first aggregator apparatus is configured to distribute the first request amount to individual devices in the first group of devices based on the current power usage of each device in the first group of devices, and
the second aggregator apparatus is configured to distribute the second request amount to individual devices in the second group of devices based on the current power usage of each device in the second group of devices.

10. The demand-response system of claim 1 , wherein
the first group of devices includes solely a plurality of the first heat pump devices,
the second group of devices includes solely a plurality of second heat pump devices, the second heat pump devices being different from the first heat pump devices,
the first heat pump devices and the second heat pump devices are the same type of heat pump devices,
the first aggregator apparatus is configured to distribute the first request amount to individual devices in the first group of devices, determine at least the control content of a compressor of each of the first heat pump devices of the first group of devices so that each of the device adjusts the amount of power usage by the distributed amount, and perform demand-response-related control of the first group of devices installed in the plurality of buildings using the first dedicated command for the first group of devices in accordance with the energy adjustment request, and
the second aggregator apparatus is configured to distribute the second request amount to individual devices in the second group of devices, determine at least the control content of a compressor of each of the second heat pump devices of the second group of devices so that each of the device adjusts the amount of power usage by the distributed amount, and perform demand-response-related control of the second group of devices installed in the plurality of buildings using the second dedicated command for the second group of devices in accordance with the energy adjustment request.

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

• Y04S20/222

  Demand response systems, e.g. load shedding, peak shaving · CPC title

• G05B15/02

  electric · CPC title