Distributed power remote monitoring system and method

Abstract

The invention relates to a distributed type power supply remote monitoring system and a method. A main station device receives a downlink control instruction, modulates the downlink control instruction so as to obtain a modulated downlink control instruction and sends the modulated downlink control instruction to a monitoring terminal. The monitoring terminal device receives the modulated downlink control instruction, demodulates the modulated downlink control instruction so as to obtain a downlink control instruction, acquires operation parameters of a distributed type power supply according to the downlink control instruction so as to obtain an uplink signal, demodulates the uplink signal so as to obtain a demodulated uplink signal and sends the demodulated uplink signal to the main station device. The main station device acquires the demodulated uplink signal sent by the monitoring terminal and acquires a modulation time domain of the demodulated uplink signal. The demodulated uplink signal is demodulated according to the demodulation time domain of the demodulated uplink signal so as to obtain an operation parameter of the distributed type power supply and then the operation parameter is output. By acquiring the modulation time domain of the demodulated uplink signal, mutual interference operation in multipath transmission is avoided, the transmission rate of the uplink signal is effectively improved and the monitoring efficiency is high.

Description

technical field [0001] The invention relates to the field of power monitoring, in particular to a remote monitoring system and method for distributed power sources. Background technique [0002] Distributed power generation has the advantages of decentralized development, local grid power supply, and low cost, and is a useful supplement to large power grids. Small hydropower is a natural distributed renewable energy with many advantages. However, after small hydropower is connected to the grid, it will affect the power quality, reliability, tidal current direction, network loss and relay protection of the grid. [0003] For remote monitoring of 10kV and grid-connected distributed power sources, cost-effective information transmission channels are the key links. At present, the main communication methods of distribution networks include optical fiber, public and dedicated wireless, medium-voltage and low-voltage power line carriers, etc. At present, remote monitoring of dist...

AI Technical Summary

Problems solved by technology

When receiving multiple signals at the same time, the mutual interference of multiple transmissions affects the data processing efficiency, and the received distributed power source data cannot be displayed in time. The traditional distributed power remote monitoring method has the disadvantage of low monitoring efficiency.

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