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A distributed photovoltaic low-voltage grid-connected device

A distributed photovoltaic and low-voltage technology, which is applied in the direction of photovoltaic power generation, photovoltaic modules, single-network parallel feeding arrangement, etc., can solve the problems of large manpower and financial resources, long construction period, complex technology, etc., and achieve high degree of firmness, wiring Flexible, highly integrated effects

Inactive Publication Date: 2017-03-29
国网山东莱州市供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the traditional method of on-site installation is not only complicated in technology, many links, long construction period, and error-prone, but also requires specialized staff for installation, which requires a lot of professional skills of the staff, and requires a lot of manpower and labor during the installation process. financial resources

Method used

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  • A distributed photovoltaic low-voltage grid-connected device
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  • A distributed photovoltaic low-voltage grid-connected device

Examples

Experimental program
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Effect test

specific Embodiment 1

[0022] follow below figure 1As shown, the specific implementation of the present invention is described in detail. A distributed photovoltaic low-voltage grid-connected device includes 3 photovoltaic units 1, 3 grid-connected inverter units 2, 1 low-voltage grid-connected cabinet 3, and an external power grid 4. The output end of each photovoltaic unit 1 is connected to the input end of the corresponding grid-connected inverter unit 2, the AC output end of the grid-connected inverter unit 2 is connected to the access terminal of the low-voltage grid-connected cabinet 3, and the low-voltage grid-connected The output terminal of the cabinet 3 is connected to the external power grid 4, and the access terminal includes a shell 5, a clamping mechanism affixed to the shell 5, a wiring mechanism, a touch switch, a line removal button 9 installed on the outer shell of the shell 5, and an installation In the controller 10 inside the housing 5, the clamping mechanism includes a clamping...

specific Embodiment 2

[0027] Embodiment 2: Except that the distance between the touch switch and the bottom end of the clamping chamber 611 is 5 mm, the rest are the same as Embodiment 1.

specific Embodiment 3

[0028] Embodiment 3: Except that the distance between the touch switch and the bottom end of the clamping chamber 611 is 3 mm, the rest are the same as Embodiment 1.

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Abstract

The invention relates to the photovoltaic generation equipment technology field, and discloses a distributed photovoltaic low voltage grid-connected device. The invention discloses a distributed photovoltaic low voltage grid-connected device, comprising a photovoltaic unit, a grid-connected inverter unit, a low voltage grid-connected cabinet, and an external power grid. The output terminal of the photovoltaic unit is connected to the input terminal of the grid-connected inverter unit; the AC output terminal of the grid-connected inverter unit is connected to the access terminal of the low voltage grid-connected cabinet; the output terminal of the low voltage grid-connected cabinet is connected to the external power grid; the access terminal comprises a housing, a wire clamping mechanism fixedly connected to the housing , a wire connection mechanism, a flipping switch, a wire-removing button installed on the external part of the housing, and a controller installed inside of the housing. The distributed photovoltaic low voltage grid-connected device has advantages of good stability, high firmness, high integration, and easy installation, and is flexible, convenient, safe and reliable in wire connection.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation equipment, in particular to a distributed photovoltaic low-voltage grid-connected device. Background technique [0002] With the prominence of the global energy crisis and the enhancement of people's awareness of environmental protection, it has become a trend for green renewable energy power generation to gradually replace coal, oil and other traditional fossil energy power generation. As an important renewable energy source, solar energy is a renewable energy generation technology with broad application prospects. [0003] Solar power generation is also called photovoltaic power generation. The photovoltaic power generation in the existing technology in my country is mainly divided into two power generation modes: distributed photovoltaic power generation and centralized photovoltaic power generation. Among them, the most widely used is the distributed photovoltaic power g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S40/34H02J3/38H01R4/24
CPCY02E10/56
Inventor 张英徐晓成袁文秀孙耀军杨斌原为民张卫荣韩正刚王俊鹏黄吉泉康学俊
Owner 国网山东莱州市供电公司
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