NOC-oriented demand coordination network control node

• US 9,946,287 B2
• Filed: 04/21/2015
• Issued: 04/17/2018
• Est. Priority Date: 08/31/2011
• Status: Active Grant

• Current Assignee: Enel X North America, Inc. (ENEL SPA)
• Original Assignee: Enernoc
• Inventors: Willig, Randy C., Mathews, Jeffrey P.
• Primary Examiner(s): Meky, Moustafa M
• Assistant Examiner(s): Halim, Sahera
• Application Number:
  US14/691,858
• Publication Number:
  US 20150227151A1
• Time in Patent Office: 1,092 Days
• Field of Search: 709226, 709227, 709249, 709229, 709224, 700286, 700291, 700295
• CPC Class Codes: G05B 13/04 involving the use of models or simulators
• CPC Class Codes: G05B 13/048 using a predictor
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 13/00017 using optical fiber
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 3/004 Generation forecast, e.g. methods or systems for forecasting future energy generation
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/83 based on usage prediction
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1078 Resource delivery mechanisms
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses
• CPC Class Codes: Y04S 40/18 : Network protocols supporting networked applications, e.g. including control of end-device applications over a network

Abstract

An apparatus including a first node and a network operations center (NOC). The first node is within the facility and is coupled to a second node via a demand coordination network. The first node has a node processor coupled to a first device, and transmits data and status via the network for generation of schedules, and operates the first device within an acceptable operating margin to maintain a first environment by cycling on and off according to the schedules. The NOC generates the schedules to control the peak demand of the resource, where one or more run times start prior to when otherwise required to maintain corresponding local environments. The NOC coordinates run times for the first device and a second device, where coordination is based on a global schedule, an adjusted first descriptor set characterizing the first environment, and an adjusted second descriptor set characterizing a second environment.

Claims

1. An apparatus for controlling peak demand of a resource within a facility, the apparatus comprising:

a first control node, disposed within the facility and coupled to a second control node via a demand coordination network, said first control node comprising;

a node processor, coupled to a first energy consuming device, configured to transmit sensor data and device status via said demand coordination network for generation of a plurality of run time schedules, and configured to operate said first energy consuming device within an acceptable operating margin to maintain a first local environment by cycling on and off according to said plurality of run time schedules; and

a network operations center (NOC), disposed external to the facility, configured to generate said plurality of run time schedules to control the peak demand of the resource, wherein one or more run times start prior to peak demand of the resource to maintain corresponding local environments, said NOC comprising;

a global schedule module, operationally coupled to said first node processor, configured to coordinate run times for said first energy consuming device and a second energy consuming device, wherein coordination is based on a global run time schedule, an adjusted first descriptor set characterizing said first local environment, and an adjusted second descriptor set characterizing a second local environment.

2. The apparatus as recited in claim 1, wherein coordination of said run times for said first and second energy consuming devices comprises advancing a first one or more of a plurality of start times, deferring a second one or more of said plurality of start times, and increasing one or more of a plurality of duty cycles.

3. The apparatus as recited in claim 1, wherein said NOC develops sets of descriptors, each set characterizing an associated one of said corresponding local environments.

4. The apparatus as recited in claim 3, wherein said NOC employs said sensor data and said device status to adjust associated sets of descriptors.

5. The apparatus as recited in claim 1, wherein said NOC develops and maintains said global run time schedule that specifies start time, duration, and duty cycle for said first and second energy consuming devices.

6. The apparatus as recited in claim 5, further comprising:

a monitor node, coupled to a non-system device and to said demand coordination network, configured to broadcast when said non-system device is consuming the resource, wherein said NOC accounts for consumption of the resource by said non-system device when generating said global run time schedule.

7. The apparatus as recited in claim 1, wherein said NOC generates two or more of said plurality of run time schedules for said first energy consuming device, and wherein said first control node selects one of said two or more of said plurality of run time schedules for execution based upon latency of last communication with said NOC.

8. The apparatus as recited in claim 1, wherein said demand coordination network comprises an IEEE 802.15.4 wireless network.

9. A peak demand control system, for managing peak energy demand within a facility, the peak demand control system comprising:

a first control node, disposed within the facility and coupled to a second control node via a demand coordination network, said first control node comprising;

a node processor, coupled to a first energy consuming device, configured to transmit sensor data and device status via said demand coordination network for generation of a plurality of run time schedules, and configured to operate said first energy consuming device within an acceptable operating margin to maintain a first local environment by cycling on and off according to said plurality of run time schedules; and

a network operations center (NOC), disposed external to the facility, configured to generate said plurality of run time schedules to control peak demand of a resource, wherein one or more run times start prior to said peak demand of said resource to maintain corresponding local environments, said NOC comprising;

a global schedule module, operationally coupled to said first node processor, configured to coordinate run times for said first energy consuming device and a second energy consuming device, wherein coordination is based on a global run time schedule, an adjusted first descriptor set characterizing said first local environment, and an adjusted second descriptor set characterizing a second local environment; and

one or more sensor nodes, coupled to said demand coordination network, configured to provide one or more global sensor data sets to said NOC, wherein said NOC employs said one or more global sensor data sets in determining said run times.

10. The peak demand control system as recited in claim 9, wherein coordination of said run times for said first and second energy consuming devices comprises advancing a first one or more of a plurality of start times, deferring a second one or more of said plurality of start times, and increasing one or more of a plurality of duty cycles.

11. The peak demand control system as recited in claim 9, wherein said NOC develops sets of descriptors, each set characterizing an associated one of said corresponding local environments.

12. The peak demand control system as recited in claim 11, wherein said NOC employs said sensor data and said device status to adjust associated sets of descriptors.

13. The peak demand control system as recited in claim 9, wherein said NOC develops and maintains said global run time schedule that specifies start time, duration, and duty cycle for said first and second energy consuming devices.

14. The peak demand control system as recited in claim 13, further comprising:

a monitor node, coupled to a non-system device and to said demand coordination network, configured to broadcast when said non-system device is consuming energy, wherein said NOC accounts for consumption of said energy by said non-system device when generating said global run time schedule.

15. The peak demand control system as recited in claim 9, wherein said NOC generates two or more of said plurality of run time schedules for said each of said plurality of devices, and wherein said each of said plurality of control nodes selects one of said two or more of said plurality of run time schedules for execution based upon latency of last communication with said NOC.

16. The peak demand control system as recited in claim 9, wherein said demand coordination network comprises an IEEE 802.15.4 wireless network.

17. A method for controlling peak demand of a resource within a facility, the method comprising:

coupling a first control node and a second control node together within the facility via a demand coordination network;

via the first control node, transmitting sensor data and device status via the demand coordination network for generation of a plurality of run time schedules, and operating the first energy consuming device within an acceptable operating margin to maintain a first local environment by cycling on and off according to the plurality of run time schedules; and

via a network operations center (NOC) disposed external to the facility, generating the plurality of run time schedules to control the peak demand of the resource, wherein one or more run times start prior to the peak demand of the resource to maintain corresponding local environments, and coordinating run times for the first energy consuming device and a second energy consuming device, wherein coordination is based on a global run time schedule, an adjusted first descriptor set characterizing the first local environment, and an adjusted second descriptor set characterizing a second local environment.

18. The method as recited in claim 17, wherein coordination of the run times for the first and second energy consuming devices comprises advancing a first one or more of a plurality of start times, deferring a second one or more of the plurality of start times, and increasing one or more of a plurality of duty cycles.

19. The method as recited in claim 17, wherein the NOC develops sets of descriptors, each set characterizing an associated one of the corresponding local environments.

20. The method as recited in claim 19, wherein the NOC employs the sensor data and the device status to adjust associated sets of descriptors.

21. The method as recited in claim 17, wherein the NOC develops and maintains a global run time schedule that specifies start time, duration, and duty cycle for the first and second energy consuming devices.

22. The apparatus as recited in claim 21, further comprising:

second coupling a non-system device to the demand coordination network, and broadcasting when the non-system device is consuming the resource, wherein the NOC accounts for consumption of the resource by the non-system device when generating the global run time schedule.