Energy reduction

• US 8,521,336 B2
• Filed: 05/16/2012
• Issued: 08/27/2013
• Est. Priority Date: 12/04/2008
• Status: Active Grant

• Current Assignee: Schneider Electric IT Corporation (Schneider Electric SE)
• Original Assignee: American Power Conversion Corporation (Schneider Electric SE)
• Inventors: Paik, Namwook
• Primary Examiner(s): SHECHTMAN, SEAN P
• Application Number:
  US13/472,873
• Publication Number:
  US 20120232712A1
• Time in Patent Office: 468 Days
• Field of Search: 700/22, 700/286, 700/291, 700295-297, 702/60, 702/61, 702/187
• US Class Current: 700/291
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00006 characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving

Abstract

A power reduction aggregation system for controlling and measuring power usage at a plurality of individual user locations which includes a plurality of power reduction controllers and a power reduction module. Each power reduction controller is disposed at one of the plurality of individual user locations and includes a controller module and an energy consumption module. The controller module is configured to selectively control power to a plurality of loads associated with each of the individual user locations. The energy consumption module is coupled to the controller module and is configured to determine energy reduction indicia associated with at least one of the plurality of loads. The power reduction module is communicatively coupled to each of the plurality of power reduction controllers and is configured to determine an aggregate energy reduction estimate by combining the energy reduction indicia determined by the plurality of power reduction controllers.

Claims

1. A power reduction aggregation system for controlling and measuring power usage at a plurality of user locations comprising:

a plurality of power reduction controllers wherein each power reduction controller is disposed at an associated user location of the plurality of user locations and is configured

to selectively control switches to selectively decouple power from or couple power to each load of a plurality of loads associated with the user location,

to selectively control the switches to selectively couple each load of the plurality of loads to a first power input or to a second power input;

to selectively control the switches to selectively decouple each load of the plurality of loads from the first power input and from the second power input wherein the first power input is from a power utility remote from the user location and the second power input is from a backup power supply local to the user location; and

to use switch state information to determine energy reduction indicia associated with at least one load of the plurality of loads; and

a power reduction module communicatively coupled to each of the plurality of power reduction controllers and configured to determine an aggregate energy reduction estimate by combining the energy reduction indicia determined by each of the plurality of power reduction controllers.

2. The power reduction aggregation system of claim 1 wherein the energy reduction indicia are associated with loads coupled to the first power input.

3. The power reduction aggregation system of claim 1 wherein the power reduction controller is configured to selectively control the switches to selectively decouple power from and recouple power to at least one load of the plurality of loads such that the at least one load of the plurality of loads runs at a reduced duty cycle.

4. The power reduction aggregation system of claim 3 wherein the power reduction controller is configured to use time of day and temperature to determine a length of time for selectively decoupling power from the at least one of the plurality of loads.

5. The power reduction aggregation system of claim 1 wherein the energy reduction indicia are measures of energy consumed by the at least one load of the plurality of loads associated with the user location.

6. The power reduction aggregation system of claim 1 wherein the energy reduction indicia are energy reduction estimates for the at least one load of the plurality of loads associated with the user location.

7. The power reduction aggregation system of claim 1 wherein the energy reduction indicia are periodic energy consumption measures for the at least one load of the plurality of loads associated with the user location.

8. A power reduction aggregation method for controlling and measuring power usage at a plurality of user locations comprising:

selectively controlling switches to selectively decouple power from or couple power to each load of a plurality of loads associated with a user location of the plurality of user locations and

determining energy reduction indicia associated with at least one load of the plurality of loads

wherein the selectively controlling the switches and the determining energy reduction indicia are performed by each of a plurality of power reduction controllers wherein each of the plurality of power reduction controllers is disposed at an associated user location of the plurality of user locations;

determining an aggregate energy reduction estimate by combining the energy reduction indicia determined by each of the plurality of power reduction controllers wherein the determining the aggregate energy reduction estimate is by a power reduction module communicatively coupled to each of the plurality of power reduction controllers;

selectively controlling the switches to selectively couple each load of the plurality of loads to a first power input or to a second power input;

selectively controlling the switches to selectively decouple each load of the plurality of loads from the first power input and from the second power input wherein the first power input is from a power utility remote from the user location and the second power input is from a backup power supply local to the user location; and

using switch state information to determine the energy reduction indicia.

9. The power reduction aggregation method of claim 8 wherein the energy reduction indicia are associated with loads coupled to the first power input.

10. The power reduction aggregation method of claim 8 comprising selectively controlling the switches to selectively decouple power from and recouple power to at least one load of the plurality of loads such that the at least one load of the plurality of loads runs at a reduced duty cycle.

11. The power reduction aggregation method of claim 10 wherein time of day and temperature are used to determine a length of time to decouple power from the at least one load of the plurality of loads.

12. The power reduction aggregation method of claim 8 wherein the energy reduction indicia comprise measures of energy consumed by the at least one load of the plurality of loads, energy reduction estimates for the at least one load of the plurality of loads, and periodic energy consumption measures for the at least one load of the plurality of loads.

13. A non-transitory computer readable medium having stored thereon sequences of instructions for controlling and measuring power usage at a plurality of user locations including instructions that will cause a processor to:

cause each of a plurality of power reduction controllers to selectively control switches to selectively decouple power from or couple power to each load of a plurality of loads associated with a user location of the plurality of user locations and determine energy reduction indicia associated with at least one load of the plurality of loads, wherein each power reduction controller is disposed at an associated user location;

cause a power reduction module communicatively coupled to each of the plurality of power reduction controllers to determine an aggregate energy reduction estimate by combining the energy reduction indicia provided by each of the plurality of power reduction controllers;

selectively control the switches to selectively couple each load of the plurality of loads to a first power input or to a second power input;

selectively control the switches to selectively decouple each load of the plurality of loads from the first power input or from the second power input wherein the first power input is from a power utility remote from the user location and the second power input is from a backup power supply local to the user location; and

use switch state information to determine the energy reduction indicia.

14. The non-transitory computer readable medium of claim 13 including instructions that will cause the processor to selectively control the switches to selectively decouple power from and recouple power to at least one of the plurality of loads such that the at least one of the plurality of loads runs at a reduced duty cycle.