Differential relay protection communication device based on 5G communication, system and method

Abstract

The invention provides a differential relay protection communication device based on 5G communication, a system and a method. The device comprises an electrical information acquisition module, a 5G communication module and a trip logic processing module, wherein the electrical information acquisition module is used for acquiring operation information of electrical equipment in real time; the 5G communication module is used for receiving the operation information of the electrical equipment that is collected by the electrical information acquisition module and realizing the operation information intercommunication between different electrical equipment; and the trip logic processing module is used for receiving the operation information of the electrical equipment that is transmitted by the5G communication module, judging the operation state of the power grid, and making a normal operation or switch trip command. According to the communication device, the system and the method, no conventional propagation medium is required, the cost of the device is greatly reduced, and the transmission rate is greatly improved, thus realizing real multi-node cooperative transmission and fault judgment and improving the reliability and stability of communication.

Description

technical field [0001] The present disclosure relates to the technical field of relay protection, and in particular to a communication device, system and method for differential relay protection based on 5G communication. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] At present, the relay protection or safety automatic device in the power relay protection device often uses the data transmission technology between two related equipment or multiple related equipment points. The remote relay protection between related equipment in current applications is generally Carrier communication, optical fiber communication and other means are used. [0004] The inventors of the present disclosure believe that the current problems to be solved are as follows: (1) transmission needs to pass through conventional physical media, such as power wires o...

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Problems solved by technology

[0004] The inventors of the present disclosure believe that the current problems to be solved are as follows: (1) transmission needs to pass through conventional physical media, such as power wires or optical fibers, resulting in high equipment costs; (2) the failure rate of the device is high, and the channel integrity of the propagation medium Directly affect the reliability of the device, any fault point of the signal transmission device and the transmission channel will cause the channel device to lose its function; (3) the cost of the device is relatively high, because the cost of the signal transmission device and the transmission medium results in high value; ( 4) The reliability of the device decreases significantly with the increase of the number of related nodes and the distance between nodes. The current power differential protection is mainly used in two-node lines, and a small amount is used in three-node lines. For multi-node, long-distance power transmission The line has its limitations; (5) The transmission rate is low, and the ability of multi-node cooperative transmission is poor

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