Identifying multi-phase devices in a time trace disaggregation process

• US 9,018,936 B2
• Filed: 08/29/2012
• Issued: 04/28/2015
• Est. Priority Date: 08/29/2012
• Status: Expired due to Fees

• Current Assignee: Verlitics LLC
• Original Assignee: Verlitics LLC
• Inventors: Alles, Harold Gene
• Primary Examiner(s): Nguyen, Tung X
• Application Number:
  US13/598,359
• Publication Number:
  US 20140062456A1
• Time in Patent Office: 972 Days
• Field of Search: 324/86, 324/76.52, 324/76.77
• US Class Current: 324/86
• CPC Class Codes: G01R 19/2513 Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
• CPC Class Codes: G01R 25/00 Arrangements for measuring phase angle between a voltage and a current or between voltages or currents

Abstract

A method of identifying multi-phase devices in a time trace disaggregation process can include detecting a multi-phase transition, identifying multi-phase devices based on the detecting, and processing the multi-phase devices separate from single-phase devices. The method can also include initializing a multi-phase array and, for each of a plurality of supply legs, determining whether a qualified transition exists. If so, the method can further include determining whether there is a pending multi-phase transition. If so, the method can further include determining whether the pending multi-phase transition is positive. If so, the method can further include creating a multi-phase instance. The method can also include storing the multi-phase instance in the multi-phase array.

Claims

1. A method of identifying multi-phase load devices in a time trace disaggregation process performed by a programmed computing machine, the method comprising:

detecting a multi-phase transition;

identifying at least one multi-phase load device based on the detecting, wherein the at least one multi-phase load device is separate from at least one single-phase load device; and

processing the at least one multi-phase load device separate from the at least one single-phase load device.

2. The method of claim 1, wherein the processing comprises:

initializing a multi-phase array; and

for each of a plurality of supply legs;

determining whether a qualified transition exists;

responsive to a determination that a qualified transition exists, determining whether there is a pending multi-phase transition;

responsive to a determination that there is a pending multi-phase transition, determining whether the pending multi-phase transition is positive;

responsive to determination that the pending multi-phase transition is positive, creating a multi-phase instance; and

storing the multi-phase instance in the multi-phase array.

3. The method of claim 2, wherein the multi-phase array comprises each of the following elements for each of the plurality of supply legs:

a transition state variable (TRANS) for specifying the pending multi-phase transition; and

an instance number (INST) for specifying the number of the created multi-phase instance.

4. The method of claim 3, wherein the multi-phase array further comprises each of the following elements for each of the plurality of supply legs:

a device number (DEV) for specifying the number of a device associated with INST; and

a composite device number (CDEV) for specifying the number of a composite device that is associated with instances created by the pending multi-phase transition.

5. The method of claim 2 further comprising, responsive to a determination that there is not a pending multi-phase transition, determining whether the qualified transition is a negative transition.

6. The method of claim 5 further comprising, responsive to a determination that the qualified transition is not a negative transition, performing single-phase conventional positive transition processing.

7. The method of claim 5 further comprising, responsive to a determination that the qualified transition is a negative transition, determining whether a multi-phase imbalance exists.

8. The method of claim 7 further comprising, responsive to a determination that a multi-phase imbalance does not exist, performing single-phase conventional negative transition processing.

9. The method of claim 7 further comprising, responsive to a determination that a multi-phase imbalance does exist, determining whether the negative transition matches the multi-phase imbalance.

10. The method of claim 9 further comprising, responsive to a determination that the negative transition matches the multi-phase imbalance, setting the imbalance of the matching multi-phase imbalance to zero.

11. The method of claim 2, further comprising determining whether there are qualified negative transitions on each leg.

12. The method of claim 11, further comprising, responsive to a determination that there are qualified negative transitions on each leg, determining whether the qualified negative transitions match instances of each multi-phase load device that is currently on.

13. The method of claim 12, further comprising, responsive to a determination that the qualified negative transitions match the instances of each multi-phase load device that is currently on, determining whether each matched instance has an imbalance.

14. The method of claim 11, further comprising, responsive to a determination that there are not qualified negative transitions on each leg, determining for each service leg whether the active instance positive transition is complete.

15. The method of claim 14, further comprising, responsive to a determination that the active instance positive transition is complete, determining whether the active instance is multi-phase.

16. The method of claim 15, further comprising, responsive to a determination that the active instance is multi-phase, comparing the active instance to existing multi-phase load devices.

17. The method of claim 16, further comprising, responsive to a matching of the active instance to an existing multi-phase load device, associating the active instance with the existing multi-phase load device.

18. The method of claim 16, further comprising, responsive to no matching of the active instance to any existing multi-phase load device, creating a new multi-phase load device based on the active instance.

19. The method of claim 17, further comprising determining whether there is an active multi-phase composite device.

20. The method of claim 19, further comprising, responsive to a determination that there is an active multi-phase composite device, associating the active instance with the active multi-phase composite device.

21. The method of claim 19, further comprising, responsive to a determination that there is not an active multi-phase composite device, creating a new composite instance and device based on the active instance.