Measurement and control communication management machine for photovoltaic box transformer substation

Abstract

The invention relates to a measurement and control communication management machine for a photovoltaic box transformer substation. The management machine is suitable for intelligent control and communication management of box transformer substations in photovoltaic power stations of non-direct grounding systems or low-resistance grounding systems of 35kV or below. With the measurement and control communication management machine for the photovoltaic box transformer substation adopted, analog quantity acquisition, non-electric quantity protection, remote control and communication functions can be realized at the high and low-voltage side of the box transformer substation. The measurement and control communication management machine integrates the functions of a communication management machine and an optical fiber switch; the measurement and control communication management machine can be connected into equipment such as an inverter, a junction box, an assembly monitor, a video monitoring and a radiation instrument, and therefore, centralized transmission of communication information in the intelligent equipment in the box transformer substation can be realized. The measurement and control communication management machine can be connected into a photovoltaic power plant monitoring system through a self-healing ring fiber, and therefore, remote management and automatic monitoring of a photovoltaic field can be realized, and a fully-intelligent and unattended operation and management mode of the photovoltaic power stations, which requires few workers to guard the photovoltaic power stations, can be satisfied.

Description

technical field [0001] The invention relates to the field of photovoltaic monitoring, in particular to a measurement, control and communication management machine for a photovoltaic box-type transformer. Background technique [0002] With the large-scale construction of domestic photovoltaic power plants, the proportion of photovoltaic power generation in the entire power supply is gradually increasing, and the safety monitoring of photovoltaic power plants has gradually gained the attention of operating companies. [0003] At present, the communication of combiner boxes, inverters, box transformers and other equipment in most photovoltaic power generation units is to send the information to the communication management machine first, and then upload it to the integrated system through the optical fiber transceiver, which makes the wiring of the whole system too numerous , which increases the possibility of failure, and also increases the investment cost of the enterprise, w...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the photovoltaic system has many wirings and high failure rate, which is not conducive to system troubleshooting, and proposes a measurement, control and communication management machine for photovoltaic box change

Images