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Direct current carrier communication system of photovoltaic power station

A photovoltaic power station and DC carrier technology, applied in the field of photovoltaic power stations, can solve the problems of increasing construction difficulty and construction cost, and achieve the effect of reducing construction difficulty and construction cost

Pending Publication Date: 2021-08-27
深圳市拓邦自动化技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] It can be seen that the communication line and power supply line of the confluence monitoring module in the prior art are independent of each other, and two systems are required to work, which will increase the construction difficulty and construction cost

Method used

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  • Direct current carrier communication system of photovoltaic power station
  • Direct current carrier communication system of photovoltaic power station
  • Direct current carrier communication system of photovoltaic power station

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Embodiment Construction

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0027] In a preferred embodiment, refer to figure 1 , the photovoltaic power station DC carrier communication system of this embodiment is applied to a photovoltaic power station, and the photovoltaic power station includes at least two solar power generation panels. The DC carrier communication system of the photovoltaic power station includes a first network terminator 10, a second network terminator 20, and at least two confluence monitoring modules 30, each confluence monitoring module 30 is installed on a solar power generation panel correspondingly, and the solar power generation panel is obtained monitoring data. The first network terminator 10 is connected to the second network terminator 20 through a trunk cab...

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Abstract

The invention relates to a direct current carrier communication system of a photovoltaic power station. In the system, each confluence monitoring module is correspondingly installed on a solar power generation panel to obtain monitoring data of the solar power generation panel; the first network terminator is connected with the second network terminator through the trunk cable, and the first network terminator and the second network terminator provide direct current for the trunk cable; each confluence monitoring module is connected to the trunk cable through a branch cable, and the first network terminator and the second network terminator provide electric energy for all the confluence monitoring modules through the trunk cable and the branch cable; and each confluence monitoring module modulates monitoring data into a direct current carrier signal, and the direct current carrier signal is transmitted to the trunk cable through the branch cable for transmission. Monitoring data of each solar panel is modulated to a direct-current power supply line by using a direct-current carrier technology, communication and power supply requirements can be met only by using one line, and construction difficulty and construction cost are reduced at the same time.

Description

technical field [0001] The invention relates to the field of photovoltaic power stations, and more specifically relates to a DC carrier communication system for photovoltaic power stations. Background technique [0002] In a photovoltaic solar power station, multiple confluence monitoring modules are usually required to monitor key information such as photovoltaic solar panel power generation current, confluence voltage, and alarm status to ensure the normal operation of the power station. In the prior art, the RS485 bus is used to connect the photovoltaic confluence monitoring modules in series, and then communicate with the local host computer through the industrial standard MODBUS-RTU communication protocol. It can be understood that the photovoltaic confluence monitoring module is an electronic component, which itself needs power supply to work. At present, there are two schemes for supplying power to the photovoltaic confluence monitoring module: [0003] The first so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/00H02S40/30H02J13/00H04B3/54
CPCH02S50/00H02S40/30H02J13/00002H02J13/00007H02J13/00032H04B3/548Y04S40/121Y02E60/00Y02E10/50
Inventor 陈军杨志勇
Owner 深圳市拓邦自动化技术有限公司
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