A Lean Line Loss Analysis System

Abstract

The invention discloses a lean line loss analysis system, which includes an intelligent line loss analysis host module, a plurality of intelligent line loss monitoring modules respectively arranged at some nodes on each branch line, and a plurality of intelligent line loss monitoring modules respectively arranged at some nodes on each branch line Multiple intelligent metering circuit breaker modules, each intelligent line loss monitoring module and intelligent metering circuit breaker module are respectively connected to the intelligent line loss analysis host module, the intelligent line loss monitoring module monitors the metering data of the line in real time, and the intelligent metering circuit breaker module controls The switch of the line where it is located and the metering data of the line where it is monitored in real time, and the intelligent line loss analysis host module respectively collects the metering data of the intelligent line loss monitoring module and the intelligent metering circuit breaker module in real time for line loss analysis. The invention has the advantages of simple structure, low cost, capable of realizing lean line loss analysis in the station area, wide application range, flexible use and the like.

Description

technical field [0001] The invention relates to a low-voltage distribution network, in particular to a lean line loss analysis system. Background technique [0002] The line loss of the low-voltage distribution transformer area is the power loss and loss generated from the output of the distribution transformer to the user's electric energy meter during the power supply process. The line loss can reflect the balance between supply and sales of the distribution network, resulting in a Line loss mainly has the following reasons: [0003] 1. Statistical management: If the basic data of the station area is not perfect, the line loss assessment lacks authenticity, including the CCS system does not match the site, public change files are not entered into the CCS system, there are households without meters, and meters are relocated at will. And the GIS system does not match the site, and the GIS system data is not updated in time according to the site changes, resulting in various...

AI Technical Summary

Problems solved by technology

[0003] 1. Statistical management: If the basic data of the station area is not perfect, the line loss assessment lacks authenticity, including the CCS system does not match the site, public change files are not entered into the CCS system, there are households without meters, and meters are relocated at will. And the GIS system does not match the site, and the GIS system data cannot be updated in time according to the site changes, resulting in various situations such as the inconsistency between the CCS and the GIS system

[0004] 2. Incorrect household relationship: For example, the phenomenon of private connection and random connection left over from the history of the old station area leads to the complexity of the power supply environment and the untimely handover of the newly added public transformer. Electricity is used, but the system has not yet entered user information for meter reading, resulting in different periods of billing electricity in the total score meter, resulting in an abnormal line loss rate in the station area

However, this type of method can only roughly determine the line loss of the entire station area, and cannot determine the specific location of the line loss. However, due to the large number of users in the station area and the complexity of the lines in the low-voltage station area, the above-mentioned statistical management, account change relationship errors, and measurement The existence of problems such as device failure and user electricity theft will affect the effectiveness of line loss assessment in the station area. At the same time, once abnormal line loss is found in the station area, troubleshooting is very difficult. It is impossible to locate the electricity theft investigation area, and it is basically impossible to quickly identify it by appearance , coupled with the fact that electricity theft is usually scattered, it is more difficult to troubleshoot the fault point

[0007] Due to the large number of station areas and complex branch lines in the station area, the line loss conditions of each station area and branch nodes may be different, and some line loss abnormalities may only last for a period of time. Troubleshooting does not require long-term monitoring. In some cases, abnormal line loss may occur repeatedly due to serious human irregularities in power consumption. Long-term monitoring of line loss is required. In order to achieve The traditional method of line loss status monitoring is to install multiple dedicated line loss monitoring devices in each station area and then manually conduct point-by-point inspections. 1. There are usually a large number of switches, branch boxes and other equipment on each branch line. The simultaneous arrangement of many switches and other equipment and a large number of auxiliary line loss monitoring equipment will make the entire system structure and wiring more complicated, especially for branch In the area with many lines and complex topology, at the same time, for the area and branch nodes that only need temporary monitoring and analysis, the device will be idle after returning to normal, which makes the equipment utilization rate low and will increase the number of failure points

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