Device and method for adjusting electricity consumption of a plurality of lighting devices of a lighting system

• US 9,192,023 B2
• Filed: 03/28/2012
• Issued: 11/17/2015
• Est. Priority Date: 04/04/2011
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Zhao, Meng
• Primary Examiner(s): Kim, Jung
• Application Number:
  US14/007,988
• Publication Number:
  US 20140015445A1
• Time in Patent Office: 1,329 Days
• US Class Current: 1/1
• CPC Class Codes: G06Q 10/0631 Resource planning, allocation, distributing or scheduling for enterprises or organisations
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H05B 47/10 Controlling the light source
• CPC Class Codes: H05B 47/175 by remote control
• 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: 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 20/246 the system involving the remote operation of lamps or lighting equipment
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

The invention is based on the idea that control of power consumption in a system comprising power consuming devices like lighting devices, for example, can be performed by dividing the power consuming devices of the system into a plurality of groups and by taking into account power consumption or load shedding or restoration capability for each group. Further, the invention implements an auction mechanism for adjusting power consumption or load in the lighting system such that an effective, fast, user requirements considering and lighting device functions and characteristics considering adjusting is achieved.

Claims

1. A device configured for adjusting power consumption of a plurality of lighting devices of a lighting system said plurality of lighting devices being divided into a plurality of groups and each group comprising at least one lighting device of the plurality of lighting devices and having a corresponding power consumption change value, wherein the corresponding power consumption change value indicates a maximum value, by which the power consumption may be changed in said group, wherein the device is adapted to:

determine a first group, which has a power consumption change value, which is a largest power consumption change value among the power consumption change values of the plurality of groups;

determine a second group, which has a power consumption change value being a second largest power consumption change value among the power consumption change values of the plurality of groups; and

adjust power consumption of the first group by use of the power consumption change value of the second group with regard to a target power consumption change value of the lighting system by which the power consumption is intended to be changed in the lighting system.

2. The device according to claim wherein the device is configured to adjust power consumption of the first group by the target power consumption change value of the lighting system if the power consumption change value of the second group is larger than the target power consumption change value of the lighting system and to adjust power consumption of the first group by the power consumption change value of the second group if the power consumption change value of the second group is smaller than or equal the target power consumption change value of the lighting system.

3. The device according to claim 2, wherein the device is configured to adjust power consumption of the first group by transmitting the target power consumption change value of the lighting system to the first group if the power consumption change value of the second group is larger than the target power consumption change value of the lighting system and to adjust power consumption of the first group by transmitting the power consumption change value of the second group to the first group if the power consumption change value of the second group is smaller than or equal the target power consumption change value of the lighting system.

4. The device according to claim 3, wherein, if the target power consumption change value of the lighting system indicates that the power consumption is intended to be reduced in the lighting system, the device is configured to reduce power consumption when adjusting power consumption and each power consumption change value of the power consumption values of the plurality of groups indicates a maximum value, by which the power consumption may be reduced in the corresponding group of the plurality of groups, and wherein, if the target power consumption change value of the lighting system indicates that the power consumption is intended to be increased in the lighting system the device is configured to increase power consumption when adjusting power consumption and each power consumption change value of the power consumption values of the plurality of groups indicates a maximum value, by which the power consumption may be increased in the corresponding group of the plurality of groups.

5. The device according to claim 4, wherein the device is adapted to transmit a power consumption change request to each group of the plurality of groups, wherein said request comprises the target power consumption change value of the lighting system.

6. The device according to claim 5, wherein the device is adapted to receive for each group of the plurality of groups the corresponding power consumption change value of the group.

7. The device according to claim 6, wherein the device is adapted to receive the power consumption change values of the plurality of groups in response to the power consumption change request.

8. The device according to claim 7, wherein the device is adapted to execute sorting of the power consumption change values of the plurality of groups, wherein a larger power consumption change value is sorted before a smaller power consumption change value.

9. The device according to claim 8, wherein, if the power consumption change value of the second group is smaller than the target power consumption change value of the lighting system the device is configured to:

reset the target power consumption change value of the lighting system by subtracting the power consumption change value of the second group from the target power consumption change value of the lighting system;

reset the power consumption change value of the first group by subtracting the power consumption change value of the second group from the power consumption value of the first group; and

execute anew the adjusting power consumption of a plurality of lighting devices of a lighting system.

10. The device according to claim 9, wherein the device is configured to adjust power consumption of the plurality of lighting devices of the lighting system after receiving the target power consumption change value of the lighting system by the device.

13. A system comprising a device according to claim 10.

11. A method for adjusting power consumption of a plurality of lighting devices of a lighting system , said plurality of lighting devices being divided into a plurality of groups and each group comprising at least one lighting device of the plurality of lighting devices and having a corresponding power consumption change value, wherein the corresponding power consumption change value indicates a maximum value, by which the power consumption may be changed in said group, wherein the method comprises:

determining a first group, which has a power comsumption change value, which is a largest power consumption change value among the power consumption change values of the plurality of groups;

determining a second group, which has a power consumption change value being a second largest power consumption change value among the power consumption change values of the plurality of groups; and

adjusting power consumption of the first group by use of the power consumption change value of the second group with regard to a target power consumption change value of the lighting system, by which the power consumption is intended to be changed in the lighting system.

12. The method according to claim 11, wherein the method is performed by a device , configured for adjusting the power consumption of the plurality of lighting devices of the lighting system.