Locating Faults in Electric Distribution Networks
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Solution Overview
Problem
Existing methods for localizing faults in low-voltage electrical distribution networks are inefficient due to the high cost and complexity of replacing conventional meters with intelligent ones, and lack precise monitoring capabilities.
Innovation Solution
A method utilizing a receiving unit with a position determination module and a database to identify and assign radio signals from devices connected to the network, allowing for the determination of active and inactive devices, thereby isolating faults by evaluating their position information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If intelligent electricity meters are used to localize faults in distribution networks, then fault localization precision is improved, but device complexity and cost increase significantly
Solution Approach 1:
The patent uses mobile devices (smartphones, tablets) as copies of specialized fault detection equipment. These mobile devices run applications that replicate fault localization functionality without requiring replacement of existing electricity meters with intelligent meters. The mobile device acts as a portable copy of the fault detection system, accessing network data through existing infrastructure.
Solution Approach 2:
The patent introduces a server as an intermediary between the mobile device and the distribution network. The server mediates by collecting data from smart meters and network monitoring systems, then processing and presenting this data to the mobile device application. This intermediary layer enables fault localization using standard mobile devices without requiring direct integration into the metering infrastructure.
2Reliability
If conventional electricity meters are replaced with intelligent electricity meters for fault localization, then network monitoring capability is improved, but manufacturing cost and implementation complexity increase
Solution Approach 1:
The patent transforms the static fault detection system into a dynamic one by using mobile devices that can be moved to different locations and deployed as needed. Instead of requiring all meters to be permanently upgraded, the system dynamically deploys detection capabilities using portable devices that can adapt to different fault scenarios and network areas.
Solution Approach 2:
The mobile device application serves multiple functions: it accesses network topology data, retrieves real-time meter readings, identifies faults, and provides localization information. This universal application replaces the need for specialized fault detection equipment, leveraging the multi-functionality of standard mobile devices to perform various network monitoring tasks.
3Difficulty of detecting and measuring
If detailed network monitoring is implemented in low-voltage networks, then fault detection capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex hardware-based monitoring systems with software-based solutions running on mobile devices. Instead of deploying dedicated monitoring equipment throughout the network, the system uses software applications that leverage existing mobile device capabilities (GPS, communication interfaces, processing power) to perform fault detection and localization functions.
Data Source
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AI summary
The invention relates to a method and an arrangement for narrowing down the location of interference in distribution systems (1), in particular electrical distribution systems. Method for narrowing down the location of interference (X) in an electrical distribution system (1) having a reception unit (9.1, 9.2, 9.3) comprising a position determination module and having a database (12) comprising position information about devices (4.1-4.11) that are connected to the distribution system (1) and that transmit radio signals identifiable by the reception unit (9.1, 9.2, 9.3) and associable with the respective device (4.1-4.11), comprising the steps of: a. ascertaining the active devices (4.1-4.11) located in proximity to the reception unit (9.1, 9.2, 9.3) on the basis of the identifiable radio signals associable with the respective device (4.1-4.11) that are transmitted by these devices (4.1-4.11); b. determining the position of the reception unit (9.1, 9.2, 9.3) in the position determination module; c. ascertaining devices (4.1-4.11) located in proximity to the reception unit (9.1, 9.2, 9.3) from the database on the basis of the ascertained position of the reception unit (9.1, 9.2, 9.3); d. ascertaining the disabled devices (4.1-4.11) in proximity to the reception unit (9.1, 9.2, 9.3) by collating the ascertained active devices (4.1-4.11) with the ascertained devices (4.1-4.11) located in proximity to the reception unit (9.1, 9.2, 9.3); and e. narrowing down interference in the distribution system by evaluating the position information of the ascertained active and disabled devices (4.1-4.11). The arrangement according to the invention is configured to perform this method.