Ammeter court identification method

Abstract

The invention discloses an ammeter court identification method. The method includes: selecting two transformers in each day of the test period; respectively connecting high-power electric equipment toa power supply line to which the transformer belongs, respectively starting one piece of electric equipment in different test intervals in the test time period and enabling the electric equipment tocontinuously work until all transformers in the transformer set at least complete one round of test, and acquiring voltage data of all to-be-identified ammeters to obtain an acquired data matrix; summating every 3Y elements of each row vector in the acquired data matrix to obtain a summation matrix; performing binary transformation calculation based on the summation matrix to obtain a binary matrix with the same dimension; combining the single-round test binary matrixes obtained in the test period; and identifying the court affiliation of each to-be-identified ammeter based on the similarity between the row vectors of the binary matrix and the merging matrix. According to the method, the transformer area attribution of the electric meter can be analyzed by collecting the test voltage dataof the electric meter, and the method has the advantages of low engineering cost, convenience in operation and high automation level.

Description

technical field [0001] The invention belongs to the technical field of electric power communication, and in particular relates to a method for identifying a meter area based on voltage data provided by a smart meter. Background technique [0002] In order to better realize the management of the power grid, most power companies in my country have adopted a sub-regional management model for low-voltage power users. Therefore, the identification of the sub-region of the meter has always been the focus of the power grid management department. Station area identification refers to the affiliation relationship between the electric meter of the power distribution residential user and the distribution transformer. Only by clarifying the station area of ​​each electric meter can real and accurate basic data be provided for the realization of refined management of the station area. Since the construction of power lines in residential quarters is a long-term and continuous process, dur...

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Problems solved by technology

[0004] Among the above methods, the first two methods need to introduce a large amount of human resources, the workload is large, the project implementation period is long, and the cost is high; the third method uses the natural relationship between the communication topology of the carrier signal in the power line and the ownership of the meter station area. Combined with the electrical parameters collected by the smart meter, such as low-voltage grid power frequency cycle (zero-crossing) data, etc., it can realize a high level of automatic identification of the ownership of a large number of smart meter stations, but only when using carrier communication technology However, the broadband carrier communication technology is not the only communication technology in the low-voltage power line electricity information collection system, and a large number of stations use micro-power wireless and optical fiber meter reading technologies to read the metering data of smart meters. For cells that do not use broadband carrier communication technology, such as micro-power wireless or optical fiber cells, it cannot be applied

The fourth type of method requires a new set of information collection and communication protocols for the information collection system, and a large-scale software update is required for the station areas that have been deployed. It needs to be used in the existing station areas, and the cost of the renovation project is high.

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