A system and method for station area topology identification based on power line broadband carrier (HPLC)

Abstract

The system and method of station area topology identification based on power line broadband carrier (HPLC) relate to a distribution transformer station area network topology identification technology,in particular to a method of distribution network topology automatic identification system using power line broadband carrier (HPLC) as a communication means, which is used for automatic identification of station area topology. The system consists of a signal transmitting device and a signal receiving terminal. The signal transmitting device includes a power line broadband carrier (HPLC) communication module installed at the root of the transformer. The signal receiving terminal has built-in trap to block the 50Hz signal, and has a unique ID code for the whole network through the specific frequency signal, and is installed at the inlet or outlet terminal of the branch box and the meter box. The signal transmitting device first obtains the ID codes of all signal receiving terminals, transmits signals, controls the states of the signal receiving terminals, detects the current direction, automatically identifies the parent nodes of each branch box and the meter box according to the current direction, and thus obtains the topology diagram of the whole station area. In the implementation process of the invention, the terminal device does not need to be configured with parameters, the HPLC is used as a communication means, no extra wiring is needed, the communication advantage of the HPLC is fully utilized, and the identification process is realized quickly and accurately.

Description

technical field [0001] The invention relates to an identification technology of a power grid topology in a distribution transformer area, in particular to a method for an automatic identification system of a distribution network topology structure using a power broadband carrier (HPLC) as a communication means. Background technique [0002] Distribution network topology is the basis for distribution automation. In the process of new construction, expansion, operation and maintenance of smart substations, changes in distribution equipment in the distribution network will lead to changes in the topological relationship of the distribution network in the station area. In order to improve the quality of power supply, it is necessary to grasp the network topology relationship of "transformer-branch box-meter box" of the entire station network system in real time. [0003] At present, the topological relationship of the power network in the distribution substation area mainly rel...

AI Technical Summary

Problems solved by technology

[0003] At present, the topological relationship of the power network in the distribution substation area mainly relies on the topology data left over from the construction of the substation area. In this way, manual entry of files is required during the initial installation, and the workload is huge. In the later stage, if equipment replacement or line changes occur, manual entry is also required. renew

In actual use, there are often entry errors or untimely update files, resulting in inconsistencies between the actual distribution network topology and the main station display

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