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Communication acquisition device, photovoltaic inverter and control system

A photovoltaic inverter and collection device technology, applied in the fields of photovoltaic inverters, control systems, and communication collection devices, can solve the problem that photovoltaic inverters cannot perform photovoltaic module-level monitoring, etc. Realize the effect of collection

Pending Publication Date: 2021-11-30
CHANGSHA JINGHUI SOLAR ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this reason, the present invention proposes a communication acquisition device, which has a simple structure and solves the problem that photovoltaic inverters cannot be monitored at the photovoltaic module level

Method used

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  • Communication acquisition device, photovoltaic inverter and control system
  • Communication acquisition device, photovoltaic inverter and control system
  • Communication acquisition device, photovoltaic inverter and control system

Examples

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Embodiment Construction

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0032] In the description of the present invention, if there are descriptions of first, second, third, fourth, etc., it is only for the purpose of distinguishing technical features, and it cannot be understood as indicating or implying relative importance or implicitly indicating the indicated The number of technical features or implicitly indicates the sequence of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting and connecting should be unders...

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Abstract

The invention discloses a communication acquisition device, a photovoltaic inverter and a control system, and the communication acquisition device comprises a first communication module which is used for receiving an output voltage transmitted by an assembly control end and transmitting an assembly on-off signal to the assembly control end; a second communication module which is used for receiving a string on-off signal sent by the monitoring end, transmitting loop current to the monitoring end and outputting voltage; a microcontroller which is used for receiving the loop current collected by the inverter body, wherein the microcontroller is also connected with the first communication module and the second communication module, and is used for receiving the output voltage through the first communication module, sending an assembly on-off signal to the assembly control end, receiving a group string on-off signal transmitted by the monitoring end through the second communication module, and transmitting loop current and output voltage to the monitoring end. According to the embodiment of the invention, the system achieves the remote monitoring of the state of the photovoltaic module, also has the capability of remotely turning off the photovoltaic module, integrates the two functions, and greatly reduces the monitoring cost.

Description

technical field [0001] The invention belongs to the field of photovoltaic power generation, and in particular relates to a communication collection device, a photovoltaic inverter and a control system. Background technique [0002] With the development and maturity of photovoltaic power generation technology, photovoltaic power generation has become one of the important components in the field of new energy. [0003] At present, in the photovoltaic industry, the photovoltaic inverters produced by mainstream photovoltaic inverter manufacturers are all string inverters. These string inverters can only monitor the string level, but cannot monitor the level where the photovoltaic modules are located. These string inverters can only monitor the voltage and current of the photovoltaic strings. At the same time, these string inverters themselves cannot communicate with the module control terminal at the level where the photovoltaic modules are located. Therefore, the existing inve...

Claims

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Application Information

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IPC IPC(8): H02S40/30H02S50/00H02S40/32H02J13/00
CPCH02S40/30H02S50/00H02S40/32H02J13/00002H02J13/00032H02J13/00006Y02E10/50Y02E60/00Y04S40/12
Inventor 彭宏亮
Owner CHANGSHA JINGHUI SOLAR ENERGY CO LTD
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