System to identify potential electrical network faults combining vibration and power quality analysis

Patent metadata

Field	Value
Publication number	US-9823311-B2
Application number	US-201414448131-A
Country	US
Kind code	B2
Filing date	Jul 31, 2014
Priority date	Jul 31, 2014
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A system to identify potential faults in an electrical power distribution system includes a vibration monitor configured to detect a vibration event proximate a portion of the electrical power distribution system, a power quality monitor configured to detect a power quality event in a portion of the electrical power distribution system, an analysis system configured to correlate the vibration event detected by the vibration monitor with the power quality event detected by the power quality monitor, and an output configured to receive information regarding the power quality event from the analysis system and to provide the information to an operator.

First claim

What is claimed is:

1. A system to identify potential faults in an electrical power distribution system, the system comprising:
a vibration monitor configured to detect a vibration event proximate a portion of the electrical power distribution system;
a plurality of power quality monitors configured to detect a power quality event in a portion of the electrical power distribution system;
an analysis system configured to correlate the vibration event detected by the vibration monitor with the power quality event detected by the plurality of power quality monitors and to determine a location of the power quality event by determining power quality monitors that the power quality event occurred between; and
an output configured to receive information regarding the power quality event from the analysis system and to provide the information to an operator.

2. The system of claim 1 , further comprising a vibration monitoring system configured to receive data regarding the vibration event from the vibration monitor and to timestamp the data regarding the vibration event.

3. The system of claim 2 , further comprising a power quality monitoring system configured to receive data regarding the power quality event from the plurality of power quality monitors and to accurately timestamp the data regarding the power quality event.

4. The system of claim 3 , further comprising a time synchronizer configured to provide time data to both the vibration monitoring system and the power quality monitoring system.

5. The system of claim 4 , wherein the time synchronizer is calibrated by receiving time data from a global positioning system satellite.

6. The system of claim 1 , further comprising an input device configured to receive an indication from an operator of a priority level of the power quality event and to transmit the indication to the analysis system.

7. The system of claim 6 , wherein the analysis system is configured to learn to classify a priority of a subsequent power quality event responsive to the indication from the operator.

8. The system of claim 7 , wherein the analysis system is configured to classify the priority of the subsequent power quality event responsive to analysis of a severity of the power quality event and a type of equipment affected by the power quality event.

9. A system to identify potential faults in an electrical power distribution system, the system comprising:
a first input configured to receive vibration data associated with a vibration event proximate a portion of the electrical power distribution system from a vibration monitor;
a second input configured to receive power quality data associated with a power quality event in a portion of the electrical power distribution system from a plurality of power quality monitors;
an analysis block configured to determine a location of the power quality event by determining power quality monitors that the power quality event occurred between; and
an output configured to display information regarding the power quality event responsive to the system establishing a correlation between the vibration event and the power quality event.

10. A method for identifying potential faults in an electrical distribution system, the method comprising:
detecting a vibration event proximate a portion of the electrical distribution system utilizing a vibration monitor;
detecting a power quality event in a portion of the electrical distribution system utilizing a plurality of power quality monitors;
determining a location of the power quality event by determining power quality monitors that the power quality event occurred between;
correlating the vibration event detected by the vibration monitor with the power quality event detected by the plurality of power quality monitors; and
outputting information regarding the power quality event to an operator.

11. The method of claim 10 , further comprising determining a location of the vibration event by performing a triangulation analysis of data provided from multiple vibration monitors.

12. The method of claim 10 , wherein correlating the vibration event detected by the vibration monitor with the power quality event detected by the power quality monitor comprises:
adding a timestamp to vibration event data associated with the vibration event provided by the vibration monitor;
adding a timestamp to power quality event data associated with the power quality event provided by the plurality of power quality monitors; and
comparing the timestamp of the vibration event data to the timestamp of the power quality event data.

13. The method of claim 12 , wherein the vibration monitor generates the timestamp of the vibration event data responsive to receipt of time data from a time synchronizer and the plurality of power quality monitors generate the timestamp of the power quality event data responsive to receipt of time data from the time synchronizer.

14. The method of claim 10 , further comprising receiving, by an analysis block, an indication from an operator of a priority level of the power quality event.

15. The method of claim 14 , further comprising assigning a priority level with the power quality event based on a parameter of the power quality event, the indication from the operator, and a type of equipment affected by the power quality event.

16. The method of claim 15 , further comprising assigning a priority level to a subsequent power quality event based on the priority level assigned to the power quality event.

17. The method of claim 16 , further comprising determining an action to take responsive to detection of the subsequent power quality event based on the priority level assigned to the subsequent power quality event.

18. The method of claim 17 , wherein determining the action to take includes determining whether to communicate an indication of the subsequent power quality event to the operator.

19. The system of claim 1 , configured to determine a location of the vibration event by performing a triangulation analysis of data provided from multiple vibration monitors.

20. The system of claim 9 , configured to determine a location of the vibration event by performing a triangulation analysis of data provided from multiple vibration monitors.

Assignees

• Schneider Electric Usa Inc

Inventors

• Stanlake Matthew

Classifications

• G01R19/2513

  Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging · CPC title

• G01R31/58

  Testing of lines, cables or conductors (testing of electric windings G01R31/72) · CPC title

• G08B21/185

  Electrical failure alarms · CPC title

• G01R31/40 Primary

  Testing power supplies (testing photovoltaic devices H02S50/10) · CPC title

• G01R31/086

  in power transmission or distribution networks, i.e. with interconnected conductors · CPC title