A Plug and Play Method for Traveling Wave Ranging System

Abstract

The invention relates to a plug-and-play method of a traveling wave ranging system, which belongs to the field of electric power automation. Through this method, the ranging master station system no longer needs to manually create the global topology parameters of the monitored power grid and the parameters of the ranging terminals, but each ranging terminal separately establishes and stores the information of the lines it monitors and the opposite substation. When the ranging terminal is powered on and connected to the communication network where the master station is located, the ranging master station can automatically recognize that the ranging terminal is online, and realize the registration of the ranging terminal at the ranging master station. At the same time, the master station automatically reads the configuration information of each ranging terminal, and automatically establishes the global topology of the power grid required by the master station according to the local topology information of the power grid stored in each ranging terminal. Realize the monitoring of the ranging terminal and the line by the ranging master station, so as to achieve the plug-and-play of the ranging terminal in the ranging master station system. When the parameters of the line monitored by the ranging terminal change, the ranging master station can re-read the configuration parameters of the ranging terminal in time to reconstruct the global topology of the master station.

Description

technical field [0001] The invention relates to a plug-and-play method of a traveling wave ranging system, which belongs to the field of electric power automation. Background technique [0002] When a power line fails, it is of great significance to quickly and accurately determine the fault location to ensure the safe, stable and economical operation of the power system. Traveling wave fault location technology has been widely used in power systems due to its high precision, wide application range and convenient use. [0003] The traveling wave ranging system actually used in the power system consists of multiple ranging terminals (TDU) and one or more ranging master stations. The ranging terminal completes the functions of traveling wave signal conversion, fault detection and discrimination, fault data sampling, and transmits fault data to the ranging master station; the ranging master station completes the reception of fault data transmitted by the ranging terminal, and ...

AI Technical Summary

Problems solved by technology

[0005] In this design method, the configuration workload of the distance measuring master station is heavy, and it is necessary to check the monitoring grid parameters with the distance measuring terminal. When the terminal monitors the line changes, the master station needs to be reconfigured. heavy workload

Moreover, the above-mentioned design method does not support multi-master stations well. When there are multiple master stations, each master station must repeatedly configure parameters, which can easily cause the problem of inconsistent parameters of multi-master stations.

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