Multi-IED Waveform Analysis for Faster Power Event Diagnosis

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Solution Overview

Problem

Existing power systems face inefficiencies in diagnosing and mitigating power-quality-induced complications due to unanticipated electrical events, as manual analysis of waveform captures by IEDs is slow and requires expertise, leading to potential equipment damage and safety concerns.

Innovation Solution

A method and system for analyzing waveform captures from multiple IEDs to identify associated characteristics, classify them, and determine their relevancy to the power system, enabling automated actions and adjustments based on the analysis, with potential integration into cloud-based or on-site systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual analysis of waveform captures by IEDs is performed, then diagnostic accuracy is improved, but analysis speed and productivity deteriorate

Engineering Contradiction:
Improvediagnostic accuracyVSAvoidanalysis speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces manual mechanical analysis of waveform captures with an automated computer-based system. The controller automatically receives waveform capture data from multiple IEDs, analyzes the data to identify electrical events, classifies characteristics, and determines relevancy without human intervention. This substitution of manual mechanical analysis with automated electronic processing directly resolves the contradiction by maintaining diagnostic accuracy while dramatically improving analysis speed and productivity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-service by automatically analyzing waveform captures and generating diagnostic conclusions without requiring external manual analysis. The controller autonomously receives data from IEDs, processes the waveform information, identifies electrical events, and provides diagnostic outputs. This self-service capability allows the system to maintain high diagnostic accuracy while eliminating the time-consuming manual analysis step, thereby resolving the productivity issue.

Inventive Principle:
Principle #25Self-service

2Reliability

If manual analysis of waveform captures is performed, then diagnostic thoroughness is improved, but time consumption and loss of time worsen

Engineering Contradiction:
Improvediagnostic thoroughnessVSAvoidtime consumption
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical analysis with automated electronic processing that maintains diagnostic thoroughness while eliminating time consumption. The controller systematically processes waveform capture data from multiple IEDs, identifies electrical events, classifies characteristics, and determines relevancy through automated algorithms. This substitution ensures comprehensive diagnostic coverage without the time investment required for manual analysis, directly resolving the contradiction between thoroughness and time loss.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables continuous automated analysis of waveform captures without interruption or manual intervention. The controller continuously receives waveform data from IEDs, processes it in real-time, and generates diagnostic conclusions continuously. This continuous operation maintains diagnostic thoroughness while eliminating the intermittent nature of manual analysis, thereby resolving the time consumption issue.

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If multiple waveform captures from multiple IEDs are analyzed, then system coverage and measurement scope are improved, but device complexity and complexity of detecting and measuring worsen

Engineering Contradiction:
Improvesystem coverageVSAvoidanalysis system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The controller is designed as a universal multi-functional device that can receive, process, and analyze waveform capture data from multiple different IEDs simultaneously. It performs various functions including data reception, waveform analysis, electrical event identification, characteristic classification, and relevancy determination within a single integrated system. This multi-functionality achieves comprehensive system coverage without proportionally increasing complexity, as the same controller handles all analysis tasks for multiple devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the analysis functions for multiple IEDs into a single integrated processing system. Instead of requiring separate analysis systems for each device, the controller consolidates reception, processing, and analysis of waveform data from multiple IEDs into one unified operation. This merging approach expands system coverage to include multiple devices while keeping the overall system complexity manageable through integration rather than multiplication of separate systems.

Inventive Principle:
Principle #5Merging (Combining)

4Productivity

If automated analysis system is implemented, then productivity and analysis speed are improved, but device complexity and complexity of detecting and measuring worsen

Engineering Contradiction:
Improveanalysis speedVSAvoidautomation system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent replaces complex manual analysis procedures with a relatively simple automated controller system. The controller uses standard electronic processing capabilities to automatically receive waveform data, identify electrical events, classify characteristics, and generate diagnostic conclusions. This substitution achieves high productivity and analysis speed without requiring overly complex automation infrastructure, as the system leverages conventional electronic processing rather than sophisticated complex mechanisms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The automated controller performs self-service analysis without requiring external complex processing systems or manual intervention. It autonomously processes waveform captures from multiple IEDs using its integrated capabilities, generating diagnostic outputs independently. This self-service approach improves productivity by eliminating manual analysis steps while keeping the automation system complexity low, as the controller uses its own built-in processing capabilities rather than requiring external complex systems.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12416654B2Systems and methods to analyze waveforms from multiple devices in power systems
Publication Date: 2025.09.16 SCHNEIDER ELECTRIC USA INC
  • US12416654B2 patent drawing
  • US12416654B2 patent drawing
  • US12416654B2 patent drawing

AI summary

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. In response to detecting the at least one electrical event, waveform captures are generated on the IEDs. The waveform captures are analyzed on at least one controller coupled to the IEDs to identify at least one associated characteristic/trait from the waveform captures. The at least one associated characteristic/trait is classified based on at least one of the analysis 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) to the power system is determined. Action may be taken based on the determined at least one potential relevancy.