Method and system for power control of electrical devices using maximum power control algorithm

Patent metadata

Field	Value
Publication number	US-9203240-B2
Application number	US-201213614957-A
Country	US
Kind code	B2
Filing date	Sep 13, 2012
Priority date	Dec 13, 2011
Publication date	Dec 1, 2015
Grant date	Dec 1, 2015

Abstract

A power control method includes: receiving a plurality of power use request information associated with a plurality of electrical devices, calculating a power consumption of the plurality of the electrical devices and an average value of the power consumption in a predetermined time period, based on the plurality of the power use request information, comparing the average value and the calculated power consumption in the predetermined time period to determine at least one scheduling interval in which the calculated power consumption is greater than the average value, and performing a scheduling in which a maximum power use time of at least one electrical device included in the at least one determined scheduling interval is moved to another interval The power use request information may be one from among time information and power consumption information corresponding to the operation of each of the plurality of the electrical devices.

First claim

What is claimed is:

1. A power control method comprising:
receiving, performed by at least one processor, a plurality of power use request information associated with a plurality of electrical devices;
calculating, performed by the at least one processor, a power consumption of the plurality of the electrical devices and an average value of the power consumption in a predetermined time period, based on the plurality of the power use request information;
comparing, performed by the at least one processor, the average value and the calculated power consumption in the predetermined time period to determine at least one scheduling interval in which the calculated power consumption is greater than the average value; and
performing, performed by the at least one processor, a scheduling in which a maximum power use time of at least one electrical device included in the at least one determined scheduling interval is moved to another interval,
wherein the power use request information comprises at least one from among time information and power consumption information, related to the operation of each of the plurality of the electrical devices.

2. The power control method of claim 1 , wherein the calculating the power consumption comprises:
summing, performed by the at least one processor, the plurality of the power use request information to obtain power consumption information requested by the plurality of the electrical devices for each interval of a plurality of intervals corresponding to the predetermined time period; and
obtaining, performed by the at least one processor, an interval specific power consumption based on the power consumption information requested by the plurality of the electrical devices for each interval of the plurality of intervals and obtaining an average of the power consumption of the plurality of intervals, and
wherein the power use request information further comprises at least one from among operation start time information, maximum power consumption information, information about a time period during which maximum power consumption continues, general power consumption information, and offset information of the maximum power use time, including information about an initial operation or a possible operation delay time.

3. The power control method of claim 1 , wherein comparing the average value and the calculated power consumption further comprises:
determining, performed by the at least one processor, a scheduling priority based on the calculated power consumption of each interval of a plurality of intervals with respect to the determined at least one scheduling interval.

4. The power control method of claim 1 , wherein performing a scheduling further comprises:
selecting, performed by the at least one processor, at least one electrical device to be scheduled based on offset information of the maximum power use time including information about an initial operation or operation delay time included in the power use request information of the plurality of electrical devices in the at least one scheduling interval, which is specified according to a priority; and
determining, performed by the at least one processor, a scheduling priority based on the maximum power consumption information of each electrical device of the plurality of electrical devices with respect to the selected at least one selected electrical device.

5. The power control method of claim 4 , further comprising:
performing, performed by the at least one processor, the scheduling in which the maximum power use time of the selected at least one electrical device is moved to the interval to be scheduled based on the offset information of the maximum power use time including the information about the initial operation or the operation delay time according to the priority.

6. The power control method of claim 5 , wherein the performing the scheduling comprises:
comparing, performed by the at least one processor, an interval specific power consumption of the interval to be scheduled to determine whether to perform the scheduling; and
performing, performed by the at least one processor, the scheduling in association with moving the maximum power use time of each electrical device of the plurality of electrical devices according to the determination result.

7. The power control method of claim 6 , wherein when the interval to be scheduled includes two or more intervals, an interval from among the two or more intervals having a minimum calculated power consumption is determined as the interval to be scheduled by comparing the interval specific power consumption each of the two or more intervals.

8. The power control method of claim 1 , further comprising:
generating, performed by the at least one processor, power time scheduling information including power use time information of the plurality of the electrical devices according to a result of performing the scheduling; and
transmitting the generated power time scheduling information to a control apparatus which controls a power condition of the plurality of the electrical devices.

9. The power control method of claim 1 , wherein, when a renewable energy source is provided together with power provided from a power provider, the method further comprises:
determining, performed by the at least one processor, a priority for using the renewable energy based on the interval specific power consumption according to a result of performing the scheduling; and
performing, performed by the at least one processor, a another scheduling in which a predetermined portion of the renewable energy source is used in a time interval according to the priority.

10. The power control method of claim 1 , wherein the power consumption information comprises at least one from among a time-series power consumption data of each of the electrical devices and time-series entire power consumption data of each load in a unit of a home, building, or multi-unit building.

11. A power control system comprising:
a gateway configured to generate a plurality of power use request information based on power consumption information of a plurality of the electrical devices; and
a maximum demand power controller configured to receive the plurality of power use request information from the gateway, configured to calculate a power consumption of the plurality of the electrical devices in a predetermined time period based on the plurality of power use request information, and configured to perform a power time scheduling in which a maximum power use time of at least one electrical device from among the plurality of electrical devices is moved to another time period based on the calculated power consumption,
wherein the power use request information includes at least one from among time information and the power consumption information, corresponding to the operation of each of the plurality of the electrical devices, and
wherein the maximum demand power controller compares an average value of the calculated power consumption in the predetermined time period and the calculated power consumption to determine at least one scheduling interval in which the calculated power consumption is greater than the average value of the calculated power consumption, and moves the maximum power use time of at least one electrical device included in the at least one determined scheduling interval to an interval to be scheduled.

12. The power control system of claim 11 , wherein the time information and the power consumption information comprises at least one from among operation start time information, maximum power consumption information, information about a time period during which maximum powe

Assignees

• Bae Young-Ho
• Joo Weon-Yong
• Kt Corp

Inventors

• Bae Young-Ho
• Joo Weon-Yong

Classifications

• H02J2105/42

  Home appliances · CPC title

• Y04S20/222

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

• Y04S20/242

  Home appliances · CPC title

• Y02B70/3225

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

• G06Q50/06

  Energy or water supply · CPC title