CN214675059U - Connecting structure of solar photovoltaic string - Google Patents
Connecting structure of solar photovoltaic string Download PDFInfo
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- CN214675059U CN214675059U CN202120923170.2U CN202120923170U CN214675059U CN 214675059 U CN214675059 U CN 214675059U CN 202120923170 U CN202120923170 U CN 202120923170U CN 214675059 U CN214675059 U CN 214675059U
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- photovoltaic
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- connection structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model discloses a connection structure of solar photovoltaic group cluster, include: a plurality of photovoltaic modules; a plurality of photovoltaic modules are connected in parallel to form a photovoltaic group string; each photovoltaic group is connected with a power optimizer. The utility model relates to a connecting structure of a solar photovoltaic string, a plurality of photovoltaic modules are connected in parallel to form a photovoltaic string; and each photovoltaic group is connected with one power optimizer in series, and all the power optimizers are connected in series. Using a power optimizer for a plurality of photovoltaic modules in each photovoltaic group string; the cost per watt for installing the power optimizer can be effectively reduced, and the power optimization function is achieved to a certain extent.
Description
Technical Field
The utility model belongs to the technical field of solar energy, in particular to connection structure of solar photovoltaic group cluster.
Background
76% of China's homeland illumination is abundant, the light energy resource distribution is relatively uniform, the photovoltaic power generation has no noise and pollutant discharge, the application technology is mature, and the method is safe and reliable. Solar energy is the cleanest, safe and reliable energy source in the future, the developed countries are planning the development and utilization of solar energy as the main content of the energy revolution for a long time, and the photovoltaic industry is increasingly becoming an explosion-type development industry after the IT and microelectronic industries in the world.
The photovoltaic module for photovoltaic power generation comprises a high-efficiency crystalline silicon solar cell, a back plate, a frame and the like.
Referring to fig. 1, in a conventional structure, a photovoltaic module 1 is provided with a power optimizer 2; the plurality of photovoltaic modules 1 are provided with the plurality of power optimizers 2, and the power generation cost per watt is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a connection structure of solar photovoltaic group cluster to solve above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a connecting structure of a solar photovoltaic string comprises:
a plurality of photovoltaic modules; a plurality of photovoltaic modules are connected in parallel to form a photovoltaic group string;
each photovoltaic group is connected with a power optimizer.
The utility model discloses further improvement lies in: the connecting structure of the solar photovoltaic group strings comprises at least two photovoltaic group strings; all power optimizers are connected in series.
The utility model discloses further improvement lies in: the power optimizer is an MPPT-based DC-DC converter.
The utility model discloses further improvement lies in: the number and the specification of the photovoltaic modules in all the photovoltaic group strings are the same.
The utility model discloses further improvement lies in: the photovoltaic modules in the same photovoltaic group string have the same specification.
The utility model discloses further improvement lies in: the photovoltaic module is a GaAs single-section solar cell, a single-section dye-sensitized solar cell, a single-junction silicon thin-film solar cell, a crystalline silicon solar cell, a cadmium telluride solar cell or a copper indium gallium selenide solar cell.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model relates to a connecting structure of a solar photovoltaic string, a plurality of photovoltaic modules are connected in parallel to form a photovoltaic string; and each photovoltaic group is connected with one power optimizer in series, and all the power optimizers are connected in series. Using a power optimizer for a plurality of photovoltaic modules in each photovoltaic group string; the cost per watt for installing the power optimizer can be effectively reduced, and the power optimization function is achieved to a certain extent.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of a connection structure of a conventional photovoltaic module;
fig. 2 is a schematic diagram of a connection structure of a solar photovoltaic string of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
Referring to fig. 2, the present invention provides a connection structure of a solar photovoltaic string, which includes a plurality of photovoltaic modules 1; several photovoltaic modules 1 are connected in parallel to form a photovoltaic string 3.
Each photovoltaic string 3 is connected with a power optimizer 2, and all the power optimizers 2 are connected in series. A plurality of photovoltaic modules 1 in each photovoltaic group string 3 use a power optimizer 2; the cost per watt for installing the power optimizer 2 can be effectively reduced, and the power optimization function is achieved to a certain extent.
The power optimizer 2 is an MPPT-based DC-DC converter, and includes an MPPT controller and a DC-DC converter.
The number and the specification of the photovoltaic modules 1 in each photovoltaic group string 3 are the same.
The photovoltaic component 1 is a GaAs single solar cell, a single dye-sensitized solar cell, a single-junction silicon thin-film solar cell, a crystalline silicon solar cell, a cadmium telluride solar cell or a copper indium gallium selenide solar cell, or other solar cells.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (6)
1. The utility model provides a connection structure of solar photovoltaic group cluster which characterized in that includes:
a number of photovoltaic modules (1); a plurality of photovoltaic modules (1) are connected in parallel to form a photovoltaic group string (3);
each photovoltaic group string (3) is connected with a power optimizer (2).
2. The connection structure of a solar photovoltaic string according to claim 1, wherein the connection structure of a solar photovoltaic string comprises at least two strings (3); all power optimizers (2) are connected in series.
3. The connection structure of a solar photovoltaic string according to claim 1, wherein the power optimizer (2) is an MPPT-based DC-DC converter.
4. The connection structure of the solar photovoltaic string as claimed in claim 2, wherein the number and the specification of the photovoltaic modules (1) in all the photovoltaic strings (3) are the same.
5. The connection structure of a solar photovoltaic string according to claim 2, wherein the photovoltaic modules (1) in the same photovoltaic string (3) have the same specification.
6. The connection structure of claim 1, wherein the photovoltaic module is a GaAs single-cell solar cell, a single-cell dye-sensitized solar cell, a single-junction silicon thin-film solar cell, a crystalline silicon solar cell, a cadmium telluride solar cell, or a copper indium gallium selenide solar cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120923170.2U CN214675059U (en) | 2021-04-29 | 2021-04-29 | Connecting structure of solar photovoltaic string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120923170.2U CN214675059U (en) | 2021-04-29 | 2021-04-29 | Connecting structure of solar photovoltaic string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214675059U true CN214675059U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120923170.2U Active CN214675059U (en) | 2021-04-29 | 2021-04-29 | Connecting structure of solar photovoltaic string |
Country Status (1)
| Country | Link |
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| CN (1) | CN214675059U (en) |
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2021
- 2021-04-29 CN CN202120923170.2U patent/CN214675059U/en active Active
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