A Method for Calculating Line Topology Based on Distribution Characteristics of Power Carrier Radiated Signal Strength

Abstract

The invention discloses a method for calculating the topological structure relationship of low-voltage power line branches based on the distribution characteristics of the radiation signal intensity of low-voltage power line carrier communication. The invention is based on the strength of the radiation signal intensity of low-voltage power line carrier communication collected by each branch node. Since the carrier signal attenuation characteristics of low-voltage power line carrier communication and power line noise characteristics interfere with the data of carrier communication radiation signals, it is impossible to use the method of carrier communication radiation signal strength to calculate the topological relationship. According to the characteristics, the method of accurately calculating the belonging branch of the terminal meter is given. According to the relationship between the carrier communication radiation signal strength between the branch nodes, the connection relationship between the calculation branch and the branch is given. Based on the relationship between the terminal smart meter and the branch and the relationship between the branches The connection relationship between them can accurately draw the topology relationship of low-voltage power line branches.

Description

technical field [0001] The invention belongs to the technical field of distribution network management on the low-voltage side of the power grid, and in particular relates to the calculation of the topology relationship of the power line in the low-voltage distribution network platform area and the attribution relationship of the branch nodes of the terminal smart meter by using the distribution characteristics of the radiation signal intensity of the low-voltage power line carrier communication. Background technique [0002] The low-voltage distribution network is the "last mile" of power supply service, and the level of operation and management directly affects the quality of power supply for users. At present, the low-voltage distribution network power supply network, as the end of the power supply network, has the characteristics of multiple structural levels and complex structural relationships. The existing power information system has not completely and accurately gras...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a method for calculating the line topology based on the distribution characteristics of the power carrier radiation signal intensity, so as to solve the problem of using the carrier radiation signal of the existing power collection system to provide accurate calculation of the line topology relationship in the low-voltage station area. It is characterized in that:

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