Medium-voltage carrier system applied to rural network centralized metering platform

Abstract

The invention discloses a medium-voltage carrier system applied to a rural network centralized metering platform. A main carrier machine and an auxiliary carrier machine are arranged at two ends of a 10 KV overhead line, respectively. The main carrier machine is communicated with a main station system through an Ethernet port or a RS-232 serial port. The auxiliary carrier machine is communicated with power distribution terminal equipment through an Ethernet port or a RS-232 serial port. Carrier signals, received from the main station system, are sent to capacity couplers by the main carrier machine through a carrier signal interface; then enter into a signal transmission loop, composed of the 10KV overhead line and the ground, through a coupling filter; and are sent to the auxiliary carrier machine through an isolation capacitance and the coupling filter. Original data, sent from the main carrier machine, is restored by the auxiliary carrier machine and then sent to the power distribution terminal equipment. The network carrier communication system has the large-scale full-coverage communication networking capacity and comprehensively meets the acceptance indicators, namely telemetering, remote signaling and remote control systems of the distribution automation made by the State Grid Company.

Description

Technical field: [0001] The invention relates to a medium-voltage carrier system applied to a centralized copying platform of a rural network. Background technique: [0002] In order to implement the scientific outlook on development, better serve the construction of a new socialist countryside, and actively implement the development goals of the State Grid Corporation of China's "one strong and three excellent" modern company and the agricultural power development strategy of "new countryside, new power, and new services", further promote The scientific and technological progress of rural power grids will give full play to the supporting role of science and technology, rely on scientific and technological means to accelerate the construction of new rural areas, and actively promote the construction of "comprehensive monitoring" and "smart power consumption" in rural power grids. [0003] The overall planning and construction of rural power communication informatization is a...

AI Technical Summary

Problems solved by technology

[0007] Compared with the vast rural power grid area, the wireless public network signal coverage area based on operators is limited. For many areas with low population density, the wireless public network signal is weak or has no coverage, resulting in the loss of communication data.

[0008] In the vast geographical area of ​​rural power grids, due to political or military reasons, interference or shielding of wireless communication signals will affect the normal operation of wireless-based power distribution communication systems

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