Method and apparatus for a cloud-based power quality monitor

• US 10,060,957 B2
• Filed: 04/13/2015
• Issued: 08/28/2018
• Est. Priority Date: 07/29/2010
• Status: Active Grant

• Current Assignee: Power Monitors, Inc.
• Original Assignee: Power Monitors, Inc.
• Inventors: Curt, Walter M., Mullins, Christopher
• Primary Examiner(s): Kasenge, Charles
• Application Number:
  US14/684,795
• Publication Number:
  US 20150276825A1
• Time in Patent Office: 1,233 Days
• CPC Class Codes: G01D 21/00 Measuring or testing not otherwise provided for
• CPC Class Codes: G01D 9/005 Solid-state data loggers
• CPC Class Codes: G01R 19/2513 Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
• CPC Class Codes: G01R 21/133 by using digital technique
• CPC Class Codes: G06F 11/3058 Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations thermal management in cooling arrangements of a computing system G06F1/206

Abstract

A system includes a plurality of power quality devices for continuously measuring and buffering power quality data and transmitting the buffered power quality data on a periodic basis and one or more cloud-based servers communicatively coupled to the plurality of power quality devices. The one or more cloud-based servers are operable to: receive the buffered data transmitted by the power quality devices; decompress and store the buffered data in a database; and display on a web page one or more of a stripchart, daily profile, histogram, waveform, vector diagram, harmonic bar chart, and 3D harmonic graph generated using the stored data. The system also includes one or more computing devices communicatively coupled to the plurality of power quality devices and the one or more cloud-based servers.

Claims

1. A system comprising:

a plurality of power quality devices configured to continuously measure and buffer power quality data including at least one of RMS voltage, RMS current, real, reactive and apparent power, power factor, displacement power factor, phase angle, harmonic magnitudes and phases, interharmonics, IFL, P_ST, and Plt flicker, symmetrical components, phasors, aggregating triggered waveforms, and transients;

the plurality of power quality devices are further configured to compress and transmit the buffered power quality data; and

one or more cloud-based servers communicatively coupled to the plurality of power quality devices, the one or more cloud-based servers configured to;

receive the buffered power quality data transmitted by the plurality of power quality devices;

decompress and store the buffered power quality data in a database or a file system; and

display on a web page one or more of a stripchart, daily profile, histogram, waveform, vector diagram, harmonic bar chart, and 3D harmonic graph generated using the stored data,

wherein the one or more cloud-based servers are further configured to transmit at least one email or SMS message to a user responsive to receiving a trigger condition from one or more of the plurality of power quality devices.

2. The system of claim 1,

wherein the one or more cloud-based servers are further configured to decimate the stored power quality data;

and

wherein the power quality data includes at least one of the harmonic magnitudes, total harmonic distortion, the P_ST and the Plt flicker, and triggered waveforms.

3. The system of claim 1, wherein the one or more cloud-based servers are further configured to transmit at least one email or SMS message to a user responsive to receiving an alert from one or more of the plurality of power quality devices.

4. The system of claim 1, wherein the one or more cloud-based servers are further configured to transmit an email to a user that provides one or more of the stripchart, daily profile, histogram, waveform, vector diagram, harmonic bar chart, and 3D harmonic graph generated using the stored data.

5. The system of claim 1, wherein the one or more cloud-based servers are further configured to display on the web page an interface for configuration of the power quality device.

6. The system of claim 5, wherein the one or more cloud-based servers are further configured to transmit an altered device configuration to one or more of the plurality of power quality devices responsive to receiving a user input at the interface for configuration of one or more of the plurality of power quality devices.

7. The system of claim 1, wherein one or more of the plurality of power quality devices are configured to transmit the buffered power quality data approximately every five minutes.

8. The system of claim 1, wherein one or more of the plurality of power quality devices are configured to transmit the buffered power quality data approximately every minute.

9. The system of claim 1, wherein one or more of the plurality of power quality devices are configured to transmit the buffered power quality data approximately every second.

10. A computer-implemented method, the method comprising:

receiving with one or more cloud-based servers, from a first power quality device, power quality data comprising at least one of an RMS voltage, an RMS current, a power factor, a displacement power factor, a phase angle, harmonic magnitudes and phases, interharmonics, IFL, P_ST, and Plt flicker, symmetrical components, phasors, aggregated triggered waveforms, and transients approximately every five minutes;

displaying a map on a web page generated by the one or more cloud-based servers, wherein the map comprises a marker indicating a location of the first power quality device and a second power quality device;

displaying on the web page generated by the one or more cloud-based servers at least one chart or graph showing one or more of the RMS voltage, the RMS current, the power factor, the displacement power factor, the phase angle, the harmonic magnitudes and phases, the interharmonics, the IFL, the P_ST, and Plt flicker, the symmetrical components, the phasors, the aggregated triggered waveforms, and the transients;

receiving with the one or more cloud-based servers, from the first power quality device, a triggered condition alert;

identifying with the one or more cloud-based servers at least one related event based on data received from the second power quality device; and

sending an email or an SMS message to a user responsive to receiving the triggered condition alert from the first power quality device with the one or more cloud-based servers.

11. The computer-implemented method of claim 10, the method further comprising:

decimating the power quality data to generate decimated power quality data;

displaying on the web page the decimated power quality data in at least one chart or graph showing one or more of the harmonic magnitudes, total harmonic distortion, the P_ST and the Plt flicker, and triggered waveforms received from the first power quality device;

and

displaying on the web page at least some data received from the second power quality device.

12. The computer-implemented method of claim 11, further comprising displaying on the web page at least one chart or graph showing one or more of the harmonic magnitudes, total harmonic distortion, the P_ST and the Plt flicker, and triggered waveforms received from the first power quality device,

wherein the at least one chart or graph comprises a strip chart, a daily profile, a histogram, a wave form, a vector diagram, a harmonic bar chart, or a 3D harmonic graph.

13. The computer-implemented method of claim 10, the method further comprising decimating the at least one of the RMS voltage, the RMS current, the power factor, the displacement power factor, the phase angle, the harmonic magnitudes and phases, the interharmonics, the IFL, the P_ST, and Plt flicker, the symmetrical components, the phasors, the aggregated triggered waveforms, and the transients received from the first power quality device based on a decimation factor.

14. The computer-implemented method of claim 10, the method further comprising averaging the at least one of the RMS voltage, the RMS current, the power factor, the displacement power factor, the phase angle, the harmonic magnitudes and phases, the interharmonics, the IFL, the P_ST, and Plt flicker, the symmetrical components, the phasors, the aggregated triggered waveforms, and the transients received from the first power quality device over an interval.

15. The computer-implemented method of claim 14, wherein the interval is received from a user.

16. The computer-implemented method of claim 14, wherein the at least one chart or graph shows the average of the at least one of the RMS voltage, the RMS current, the power factor, the displacement power factor, the phase angle, the harmonic magnitudes and phases, the interharmonics, the IFL, the P_ST, and Plt flicker, the symmetrical components, the phasors, the aggregated triggered waveforms, and the transients received from the first power quality device over the interval.

17. A system comprising:

a plurality of power quality devices configured to continuously measure and buffer power quality data;

the plurality of power quality devices configured to compress and transmit the buffered power quality data on a periodic basis;

one or more cloud-based servers communicatively coupled to the plurality of power quality devices, the one or more cloud-based servers configured to;

receive the buffered data transmitted by the power quality devices;

decompress and store the buffered data in a database;

display on a web page one or more of a stripchart, daily profile, histogram, waveform, vector diagram, harmonic bar chart, and 3D harmonic graph generated using the stored data; and

one or more computing devices communicatively coupled to the plurality of power quality devices and the one or more cloud-based servers, the one or more computing devices configured to receive at least one user input to the web page,

wherein the one or more cloud-based servers are further configured decimate the buffered data to generate decimated power quality data; and

wherein the one or more cloud-based servers are configured to display the one or more of the stripchart, daily profile, histogram, waveform, vector diagram, harmonic bar chart, and 3D harmonic graph responsive to receiving a request for the one or more stripchart, daily profile, histogram, waveform, vector diagram, harmonic bar chart, and 3D harmonic graph based on the at least one user input to the web page.