Medium-voltage communication standby power system

Abstract

The invention relates to the technical field of medium-voltage carrier communication, in particular to a medium-voltage communication standby power supply system. The system comprises a power supply module, a charging and discharging module, storage batteries 1 and 2 and a metal box shell which are connected with one another, wherein the interior of the metal box shell is provided with the power supply module, the charging and discharging module and the storage batteries 1 and 2; the power supply module is connected with the charging and discharging module, the external medium-voltage communication module and the voltage transformer; the charging and discharging module is connected with the storage batteries 1 and 2. When a 10kV line is powered off, a stable power supply is provided for the medium-voltage communication module, and the requirement for large-data-volume long-time communication is met. Meanwhile, equipment such as a switch and a security gateway in a medium-voltage communication system can be charged, so that the personalized customization requirements of customers are met.

Description

technical field [0001] The invention relates to the technical field of medium-voltage carrier communication, in particular to a medium-voltage communication backup power system. Background technique [0002] Medium-voltage carrier communication is a communication method that uses 10kV medium-voltage distribution lines as transmission channels to realize data transmission. It uses existing power cables to build a communication network, and communication can be realized through medium-voltage communication modules. This is very important for power grid systems. extremely important. However, in the medium-voltage carrier communication, when the 10kV high-voltage line fails, because the medium-voltage communication module has no backup power supply, the important data of the terminal cannot be uploaded to the main station system, resulting in communication failure. [0003] The existing method to solve the power failure of 10kV high-voltage line is to directly add a backup circ...

AI Technical Summary

Problems solved by technology

However, in the medium-voltage carrier communication, when the 10kV high-voltage line fails, because the medium-voltage communication module has no backup power supply, the important data of the terminal cannot be uploaded to the main station system, resulting in communication failure.

[0003] The existing method to solve the power failure of 10kV high-voltage line is to directly add a backup circuit on the medium-voltage communication module, such as adding a supercapacitor charging and discharging circuit, charging the supercapacitor when there is power, and discharging the supercapacitor to the medium-voltage communication module when the line is powered off Power supply, the disadvantage is that the continuous power supply time of the super capacitor is short, which cannot meet the needs of large data volume and long-term communication

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