Power Distribution Management Abnormality Detection

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Solution Overview

Problem

Current power distribution management systems lack the ability to specifically identify abnormal facilities during blackouts, leading to extended disruption and difficulty in swift restoration.

Innovation Solution

A power distribution management apparatus equipped with an acquisition unit to gather data from smart meters and a detection unit that identifies abnormal facilities by detecting unacquired data within a predetermined interval, enabling precise abnormality detection and restoration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If remote-control switches or time-limit switches are used to suppress blackout range, then the blackout range is limited to sections partitioned by switches, but it becomes difficult to detect abnormal facilities in the switch sections

Engineering Contradiction:

Improveblackout suppression capabilityVSAvoidabnormal facility detection difficulty

Core Design Contradiction:

ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent introduces smart meters as intermediary devices installed throughout the power distribution system. These meters continuously monitor power consumption data and serve as mediators between the power distribution system and the management apparatus, enabling indirect detection of abnormal facilities through data collection without requiring direct inspection of each facility

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The management apparatus receives power consumption data from smart meters and implements a feedback mechanism that continuously monitors for missing data. When data is not received within a predetermined interval, the system generates abnormality notifications and provides feedback to operators, enabling continuous monitoring and rapid response to abnormal conditions

Inventive Principle:

Principle #23Feedback

2Reliability

If switches are operated during blackout to limit affected area, then blackout range is suppressed, but swift restoration is disrupted and blackout may be extended

Engineering Contradiction:

Improveblackout range controlVSAvoidrestoration time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by continuously collecting and analyzing power consumption data from smart meters before blackouts occur. This enables the management apparatus to pre-identify potential abnormal facilities and prepare abnormality notifications in advance, so that when a blackout occurs, restoration can proceed quickly with already-identified abnormal items

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces manual inspection and mechanical investigation methods with an automated information-based system. Instead of physically inspecting facilities during and after blackouts, the system uses smart meters to collect data and automatically generates abnormality notifications, substituting mechanical restoration processes with automated information processing and notification systems

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS10152073B2Power distribution management apparatus and abnormality detection method

Publication Date: 2018.12.11 FUJITSU LTD

AI summary

A power distribution management apparatus includes an acquisition unit and a detection unit. The acquisition unit is configured to acquire predetermined data at a predetermined interval from meters classified into a predetermined group, the data containing power consumption. The detection unit is configured to detect, as an abnormal place, a facility of a power distribution system associated with the group when the predetermined data is not acquired within the predetermined interval from the respective meters included in the group.