# US 2020/0393501 A1 · Systems and methods to analyze waveforms from multiple devices in power systems > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0393501 A1 - Document ID: US20200393501A1 - Status: Published application - Kind: A1 - Application number: 17/009,208 - Filed: 2020-09-01 - Published: 2020-12-17 - Earliest claimed: 2016-04-04 - Assignees: Schneider Electric USA, Inc. - Applicants: Schneider Electric USA, Inc. - Inventors: Johannes Menzel; Jon Andrew Bickel - Web page: https://patentgrep.com/patent/US20200393501A1 ## CPC - G01R 19/2513: {Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging} - G01R 23/16: Spectrum analysis; Fourier analysis - G01R 22/068: {Arrangements for indicating or signaling faults} - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) ## Abstract Systems and methods for analyzing waveform capture data in a power system are provided. In one aspect, a method for analyzing waveform capture data in a power system includes measuring electrical signals in the power system using a plurality of intelligent electronic devices (IEDs). At least one electrical event is detected in the power system based on the measured electrical signals from the plurality of IEDs, and in response to detecting the at least one electrical event, at least two waveform captures are generated on the plurality of IEDs as a result of the at least one electrical event. The at least two waveform captures are analyzed on at least one controller coupled to the plurality of IEDs to identify at least one associated characteristic/trait from the at least two waveform captures. The at least one associated characteristic/trait is classified based on at least one of the analysis of the at least two waveform captures and the at least one associated characteristic/trait, and at least one potential relevancy of at least one of the at least one associated characteristic/trait and the classification(s) of the at least one associated characteristic/trait to the power system is determined. One or more actions may be taken based on the determined at least one potential relevancy. ## Claims ### Claim 1 A method for analyzing waveform capture data in a power system, the method comprising: measuring electrical signals in the power system using a plurality of intelligent electronic devices (IEDs); detecting at least one electrical event in the power system based on the measured electrical signals from the plurality of IEDs; in response to detecting the at least one electrical event, generating at least two waveform captures on the plurality of IEDs as a result of the at least one electrical event; analyzing the at least two waveform captures on at least one controller coupled to the plurality of IEDs to identify at least one associated characteristic/trait from the at least two waveform captures; classifying the at least one associated characteristic/trait from the at least two waveform captures based on at least one of the analysis of the at least two waveform captures and the at least one associated characteristic/trait; determining at least one potential relevancy of at least one of the at least one associated characteristic/trait and the classification(s) of the at least one associated characteristic/trait to the power system; and taking one or more actions based on the determined at least one potential relevancy. ### Claim 2 (depends on 1) The method of claim 1, further comprising: identifying IEDs of the plurality of IEDs that did not detect the at least one electrical event. ### Claim 3 (depends on 2) The method of claim 2, further comprising: in response to identifying IEDs that did not detect the at least one electrical event, establishing at least one reason the identified IEDs did not detect the at least one electrical event. ### Claim 4 (depends on 1) The method of claim 1, further comprising: detecting at least one other event in the power system besides the at least one electrical event. ### Claim 5 (depends on 4) The method of claim 4, wherein the at least one other event includes at least one non-energy related trigger, the at least one non-energy related trigger initiated at least one of manually, periodically, pseudo-randomly, and indiscriminately. ### Claim 6 (depends on 5) The method of claim 5, wherein the at least one non-energy related trigger includes a trigger to generate the at least two waveform captures on the plurality of IEDs. ### Claim 7 (depends on 1) The method of claim 1, further comprising: developing at least one level/degree of confidence based on at least one of the analysis of the at least two waveform captures, the classification(s) of the at least one associated characteristic/trait, and the determined at least one potential relevancy. ### Claim 8 (depends on 1) The method of claim 1, wherein at least one of the plurality of IEDs and/or other systems and/or devices further generates non-waveform capture data. ### Claim 9 (depends on 8) The method of claim 8, wherein the non-waveform capture data is used in the analysis of the at least two waveform captures, the classification(s) of the at least one associated characteristic/trait, and the determined at least one potential relevancy. ### Claim 10 (depends on 1) The method of claim 1, wherein the at least two waveform captures are at least one of analyzed, classified and used to determine the at least one potential relevancy based on at least one of location(s), type(s), load(s), load type(s), process(es), application(s), user input(s), metadata, functionality(ies) of the plurality of IEDs capturing the at least two waveform captures, and factors calculated or derived from other analysis or observations. ### Claim 11 (depends on 10) The method of claim 10, wherein the factors calculated or derived from other analysis or observations include at least one of: similarity(s), incongruency(s), variation(s), shape(s), severity(s), impact(s), distance(s), grouping(s), electrical event criticality(ies), energy-related parameter(s), derived characteristic(s), setting(s), configuration(s), event duration(s), solution(s)/mitigation(s), cost(s), stimulate(s), induce(s), effect(s), level/degree of change(s), recovery time duration(s), significance(es), loss(es), attenuation(s), process signal(s), load signal(s), status change(s), other change(s), attribute(s). ### Claim 12 (depends on 1) The method of claim 1, wherein at least one of the plurality of IEDs influences the analysis more heavily than another of the plurality of IEDs. ### Claim 13 (depends on 1) The method of claim 1, wherein at least one of the at least two waveform captures influences at least one of: the analysis of the at least two waveform captures, the classification(s) of the at least one associated characteristic/trait, and the determination(s) of the at least one potential relevancy, more heavily than another one of the at least two waveform captures. ### Claim 14 (depends on 13) The method of claim 13, wherein an amount/level/degree of the influence on the analysis of the at least two waveform captures is based on at least one of location(s), type(s), load(s), process(es), application(s), user input(s), metadata, functionality(ies) of the plurality of IEDs capturing the at least two waveform captures, and factors calculated or derived from other analysis or observations. ### Claim 15 (depends on 14) The method of claim 14, wherein the factors calculated or derived from other analysis or observations include at least one of: magnitude, phase angle, frequency component, impact, phase, shape, duration, time of occurrence, electrical parameter, change, attribute(s) of the at least two waveform captures from the plurality of IEDs. ### Claim 16 (depends on 1) The method of claim 1, wherein the at least one associated characteristic/trait identified from the at least two waveform captures includes at least one of similarity(ies) and dissimilarity(ies) associated with, or derived from, the at least two waveform captures. ### Claim 17 (depends on 1) The method of claim 1, wherein the measured electrical signals include at least one of a voltage signal, a current signal, input/output (I/O) data, and a derived or extracted value. ### Claim 18 (depends on 1) The method of claim 1, wherein the at least one controller on which the at least two waveform captures are analyzed includes at least one controller associated with at least one of the plurality of IEDs, a control system or device coupled to the plurality of IEDs, a gateway, a cloud-based system, on-site software/edge, and/or a remote server. ### Claim 19 (depends on 1) The method of claim 1, wherein the one or more actions taken based on the determined at least one potential relevancy of at least one of the at least one characteristic/trait and the classification(s) of the at least one associated characteristic/trait to the power system, include providing an indication of the determined at least one potential relevancy via at least one of: a report, a text, an email, audibly, and an interface of a screen/display. ### Claim 20 (depends on 1) The method of claim 1, wherein the one or more actions taken based on the determined at least one potential relevancy of at least one of the at least one characteristic/trait and the classification(s) of the at least one associated characteristic/trait to the power system, include adjusting one or more parameters associated with at least one electrical component, system and/or device in the power system based on the determined at least one potential relevancy. ### Claim 21 A system for analyzing waveform capture data in a power system, comprising: at least one controller; and at least one memory device coupled to the at least one controller, the at least one controller and the at least one memory device configured to: receive at least two waveform captures from a plurality of intelligent electronic devices (IEDs) in the power system, the at least two waveform captures generated by the plurality of IEDs as a result of at least one electrical event detected in the power system by the plurality of IEDs; analyze the at least two waveform captures on the at least one controller to identify at least one associated characteristic/trait from the at least two waveform captures; classify the at least one associated characteristic/trait from the at least two waveform captures based on at least one of the analysis of the at least two waveform captures and the at least one associated characteristic/trait; determine at least one potential relevancy of at least one of the at least one associated characteristic/trait and the classification(s) of the at least one associated characteristic/trait to the power system; and take one or more actions based on the determined at least one potential relevancy. ### Claim 22 (depends on 21) The system of claim 21, wherein the plurality of IEDs and/or the system are further configured to detect at least one other event in the power system besides the at least one electrical event. ### Claim 23 (depends on 22) The system of claim 22, wherein the at least one other event includes at least one non-energy related trigger, the at least one non-energy related trigger initiated at least one of manually, periodically, pseudo-randomly, and indiscriminately. ### Claim 24 (depends on 23) The system of claim 23, wherein the at least one non-energy related trigger includes a trigger to generate the at least two waveform captures on the plurality of IEDs. ### Claim 25 (depends on 21) The system of claim 21, wherein at least one of the plurality of IEDs and/or other systems and/or devices further generates non-waveform capture data. ### Claim 26 (depends on 25) The system of claim 25, wherein the non-waveform capture data is used in the analysis of the at least two waveform captures, the classification(s) of the at least one associated characteristic/trait, and the determination(s) of the at least one potential relevancy. ### Claim 27 (depends on 21) The system of claim 21, wherein the at least two waveform captures are at least one of analyzed, classified and used to determine the at least one potential relevancy based on at least one of location(s), type(s), impact(s), load(s), load type(s), process(es), application(s), user input(s), metadata, functionality(ies) of the plurality of IEDs capturing the at least two waveform captures, and factors calculated or derived from other analysis or observations. ### Claim 28 (depends on 27) The system of claim 27, wherein the factors calculated or derived from other analysis or observations include at least one of: severity(s), distance(s), grouping(s), shape(s), magnitude(s), electrical event criticality(ies), energy-related parameter(s), derived characteristic(s), setting(s), configuration(s), event duration(s), solution(s)/mitigation(s), cost(s), stimulate(s), induce(s), effect(s), recovery time duration(s), significance(es), loss(es), attenuation(s). ### Claim 29 (depends on 21) The system of claim 21, wherein at least one of the plurality of IEDs influences the analysis more heavily than another of the plurality of IEDs.