LOAD CONTROL METHOD, LOAD CONTROL DEVICE, AND ELECTRICAL LOAD DEVICE

• US 20150100171A1
• Filed: 03/28/2014
• Published: 04/09/2015
• Est. Priority Date: 03/29/2013
• Status: Abandoned Application

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Behrangrad, Mahdi, Funakura, Masami
• Application Number:
  US14/400,564
• Publication Number:
  US 20150100171A1
• Time in Patent Office: Days
• US Class Current: 700/291
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 3/12 for adjusting voltage in ac networks by changing a characteristic of the network load
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/30 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 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 Home appliances

Abstract

Load control method suppressing reduction in functionality of a load resource brought about by demand response. The load control method includes: obtaining first time information for specifying demand response commencement time T1 and second time information for specifying ramping completion time T3; determining ramping commencement time T4 based on first time information and second time information; and causing ramping to be commenced at T4. T1 is a time point at which a demand response event is to be commenced. T3 is a time point at which ramping, which is a process through which an amount of electricity received from an electricity grid is changed, is to be completed. T4 is a time point at which ramping is to be commenced. T4 is later than T1 and earlier than T3.

Claims

1. A load control method for controlling a load connected to an electricity grid, the load control method comprising:

obtaining first time information for specifying demand response commencement time and second time information for specifying ramping completion time, the demand response commencement time being a time point at which a demand response event is to be commenced, the ramping completion time being a time point at which ramping in the demand response event is to be completed and being later than the demand response commencement time, the ramping being a process through which an amount of electricity received from the electricity grid is changed;

determining ramping commencement time based on the first time information and the second time information, the ramping commencement time being a time point at which the ramping is to be commenced, being later than the demand response commencement time, and being earlier than the ramping completion time; and

causing the ramping to be commenced at the ramping commencement time.

2. The load control method of claim 1, wherein

in the determining, the ramping commencement time is determined by using a probability of the ramping being completed before the ramping completion time when the commencement of the ramping is delayed with respect to the demand response commencement time, the probability being calculated by using the first time information and the second time information.

3. The load control method of claim 1, wherein

in the determining, the ramping commencement time is determined by using a probability of the demand response event being cancelled when the commencement of the ramping is delayed with respect to the demand response commencement time, the probability being calculated by using the first time information and the second time information.

4. The load control method of claim 1, wherein

in the determining, the ramping commencement time is determined by using a first probability and a second probability that are calculated by using the first time information and the second time information, the first probability being a probability of the ramping being completed before the ramping completion time when the commencement of the ramping is delayed with respect to the demand response commencement time, and the second probability being a probability of the demand response event being cancelled when the commencement of the ramping is delayed with respect to the demand response commencement time.

5. The load control method of claim 2, wherein

in the obtaining, characteristic information is obtained in addition to the first time information and the second time information, the characteristic information including at least one of characteristics of delay deriving from a communication network for transmitting a control signal for causing the ramping to be commenced and characteristics of time between the commencement and the completion of the ramping, and

in the determining, the probability is calculated by using the characteristic information in addition to the first time information and the second time information.

6. The load control method of claim 3, wherein

in the obtaining, characteristic information is obtained in addition to the first time information and the second time information, the characteristic information including information on current settings of the load and characteristics of a relationship between settings of the load and demand response events cancelled in the past, and

in the determining, the probability is calculated by using the characteristic information in addition to the first time information and the second time information.

7. The load control method of claim 1, wherein

in the obtaining, the first time information is obtained from an electric utility.

8. The load control method of claim 1, wherein

in the obtaining, the second time information is obtained from an electric utility.

9. The load control method of claim 1, wherein

in the obtaining, third time information for specifying demand response completion time is obtained in addition to the first time information and the second time information, the demand response completion time being a time point at which the demand response event is to be completed, and

the method further comprises

causing the load to commence a recovery process after the demand response event is completed.

10. A load control device for controlling a load connected to an electricity grid, the load control device comprising:

an obtaining unit obtaining first time information for specifying demand response commencement time and second time information for specifying ramping completion time, the demand response commencement time being a time point at which a demand response event is to be commenced, the ramping completion time being a time point at which ramping in the demand response event is to be completed and being later than the demand response commencement time, the ramping being a process through which an amount of electricity received from the electricity grid is changed; and

a determining unit determining ramping commencement time based on the first time information and the second time information, the ramping commencement time being a time point at which the ramping is to be commenced, being later than the demand response commencement time, and being earlier than the ramping completion time, wherein

the load control device causes the ramping to be commenced at the ramping commencement time.

11. An electric load device comprising:

a reception unit receiving a ramping commencement instruction being an instruction causing ramping in a demand response event to be commenced, the ramping being a process through which an amount of electricity received from an electricity grid is changed, the ramping commencement instruction including time information for specifying ramping commencement time, the ramping commencement time being a time point at which the ramping is to be commenced and being later than a demand response commencement time, the demand response commencement time being a time point at which the demand response event is to be commenced; and

a control unit commencing the ramping at the ramping commencement time based on the ramping commencement instruction.

12. A load control method for controlling a load connected to an electricity grid, the load control method comprising:

obtaining (i) time information for specifying demand response commencement time, the demand response commencement time being a time point at which a demand response event is to be commenced, and (ii) incentive information specifying incentive in relation to processing performance in ramping, the ramping being a process through which an amount of electricity received from an electricity grid is changed;

determining ramping commencement time based on the time information and the incentive information, the ramping commencement time being a time point at which the ramping is to be commenced and being later than the demand response commencement time; and

causing the ramping to be commenced at the ramping commencement time.

13. The load control method of claim 12, wherein

in the determining, the ramping commencement time is determined such that the incentive, which is an incentive paid to a demander using the load and changes in accordance with a time point at which the ramping is completed, is high.

14. The load control method of claim 12, wherein

the processing performance in the ramping is a time length between the demand response commencement time and the time point at which the ramping is completed.

15. The load control method of claim 12 further comprising:

generating an instruction signal including the ramping commencement time; and

transmitting the instruction signal to the load.