CN202049201U

CN202049201U - Photovoltaic test system and shielding support thereof

Info

Publication number: CN202049201U
Application number: CN2010206882120U
Authority: CN
Inventors: 曹剑; 许家东; 尉元杰; 苏静
Original assignee: Canadian Solar Manufacturing Changshu Inc; Canadian Solar China Investment Co Ltd
Current assignee: Canadian Solar Manufacturing Changshu Inc; Canadian Solar China Investment Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-11-23
Anticipated expiration: 2020-12-29

Abstract

The utility model discloses a photovoltaic test system and its shielding support, wherein the photovoltaic test system includes a photovoltaic power station provided with several photovoltaic modules and a power optimizer arranged at the current output end of the photovoltaic power station to improve the power generation efficiency of the photovoltaic power station. The photovoltaic testing system also includes a shielding bracket built on the side of the photovoltaic power station, and the shielding bracket includes a support frame and a shade cloth installed on the support frame. The photovoltaic test system can effectively artificially create shadows through the setting of shading brackets, so that the influence of shadows on the performance of photovoltaic power plants can be tested within a limited time, and then an appropriate optimizer can be selected to improve the power generation efficiency of photovoltaic power plants.

Description

Photovoltaic test macro and block support

Technical field

The utility model relates to a kind of photovoltaic plant test macro, relates in particular to a kind of photovoltaic test macro with blocking support.

Background technology

In the operation stage of photovoltaic plant, because the shade of generations such as barrier, cloud can cause in the solar components power attenuation inhomogeneous, the generated energy of total system just can drop significantly, in general, 10% the covered meeting of cell panel area makes the gross generation drop 50% of system, also can cause assembly to burn under the serious situation.Therefore, now increasing company is studied the problem of assembly property influence at shade, is one of present mainstream development direction by the influence that reduces shade at DC-DC optimizer of assembly dc output end increase wherein.

Because the performance of the DC-DC optimizer of different manufacturers has nothing in common with each other, and different photovoltaic plants mates different DC-DC optimizers because of data different needs such as generated energy, thereby improves the gross generation in power station efficiently.And the photovoltaic Design of Test System at the DC-DC performance still is in the starting stage in the prior art.

So be necessary to design a kind of photovoltaic test macro to solve the problems of the technologies described above.

The utility model content

The purpose of this utility model provides a kind of photovoltaic test macro and blocks support, and it can realize the test to photovoltaic system simplely in the limited time.

For reaching aforementioned purpose, the utility model adopts following technical scheme: a kind of photovoltaic test macro, comprise the photovoltaic plant that is provided with some photovoltaic modulies and be located at the power supply optimizer that the photovoltaic plant current output terminal can improve photovoltaic power station power generation efficient, described photovoltaic test macro also comprises the support of building in the photovoltaic plant side that blocks, the described support that blocks comprises a bracing frame and the cloth that blocks that is installed on the bracing frame, and the described cloth that blocks forms shade along the sunshine direction on the photovoltaic module of photovoltaic plant.

Further, support frame as described above comprises two mutual levels and column perpendicular to the ground and the crossbeam that connects two columns, and described crossbeam is between column bottom and top.

Further, described crossbeam is vertical mutually with column.

Further, described blocking is laid between the crossbeam, and angled with the photovoltaic module surface.

Further, described column and crossbeam equal intervals have a through hole, column is fixedlyed connected by bolts and nuts with crossbeam, described bolt passes the through hole on crossbeam and the column.

The utility model can also adopt following technical scheme: a kind of photovoltaic test macro blocks support, and the described support that blocks comprises a bracing frame and the cloth that blocks that is installed on the bracing frame.

Further, described crossbeam is vertical mutually with column.

Compared to prior art, the utility model can be made shade easily by blocking the setting of support, thereby can be in the performance impact of limited time build-in test shade to photovoltaic plant, and then select suitable DC-DC optimizer, improve the generating efficiency of photovoltaic plant.

Description of drawings

Fig. 1 is the schematic perspective view of the utility model photovoltaic test macro.

Fig. 2 blocks the synoptic diagram of bracing frame in the support for the utility model photovoltaic test macro.

Fig. 3 is the partial enlarged drawing of the utility model column and crossbeam installation place.

Wherein:

100: photovoltaic test macro 1: photovoltaic plant

2: block support 21: bracing frame

22: block cloth 211: column

212: crossbeam 213: through hole

214: bolt 215: nut

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in detail below in conjunction with the drawings and specific embodiments.

See also shown in Figure 1, schematic perspective view for the utility model photovoltaic test macro 100, comprise the photovoltaic plant 1 that is provided with some photovoltaic modulies, being located at the photovoltaic plant current output terminal can improve the power supply optimizer (not shown) of photovoltaic power station power generation efficient and build and block support 2 in the photovoltaic plant side, the electric current of wherein said photovoltaic plant 1 output is a direct current, the power supply optimizer is the DC-DC optimizer, described DC-DC optimizer can reduce the influence of shade to photovoltaic plant 1, block support 2 and can produce shade artificially, thereby can be in the performance impact of limited time build-in test shade to photovoltaic plant 1, and then select suitable DC-DC optimizer, improve generating efficiency.

Blocking support 2 comprises bracing frame 21 and is installed on and block cloth 22 on the bracing frame 21, blocking cloth 22 is located between the crossbeam 212, block the shade cloth that cloth 22 is generally black, it is angled with the photovoltaic module surface to block cloth 22, can form shade along the sunshine direction so block cloth 22 on the photovoltaic module of photovoltaic plant 1.

See also shown in Figure 2, for blocking the synoptic diagram of bracing frame 21 in the support 2 in the utility model photovoltaic test macro, support frame as described above 21 comprises two mutual level and columns 211 perpendicular to the ground, and the crossbeam 212 that connects two columns 211, described crossbeam 212 is between column 211 bottoms and top, and column 211 and crossbeam 212 are standard sections.Three crossbeams 212 are arranged in the present embodiment, and crossbeam 212 is vertical mutually with column 211, and certainly, crossbeam 212 also can be arranged in a crossed manner at an angle with column 211.

Please join shown in Figure 3, block the partial enlarged drawing of bracing frame 21 in the support 2 for the utility model photovoltaic test macro, column 211 and crossbeam 212 equal intervals have a through hole 213, described through hole 213 is along roughly being square on the longitudinally of column 211 or crossbeam 212, its two ends are semicircle, column 211 is fixedlyed connected with nut 215 by bolt 214 with crossbeam 212, and through hole 213 width transversely of described column 211 and crossbeam 212 is slightly larger than the diameter of bolt 214.

When solar radiation is to the photovoltaic module of photovoltaic plant 1, the area size of blocking the position of support 2 or blocking cloth 22 by adjusting, can on photovoltaic plant 1, form shade in various degree, test data according to photovoltaic plant 1 is selected different DC-DC optimizers, makes photovoltaic plant 1 can provide maximum generating efficiency when work.

In sum, it below only is preferred embodiment of the present utility model, should not limit scope of the present utility model with this, be that every simple equivalent of being done according to the utility model claims and utility model description changes and modifies, all should still belong in the scope that the utility model patent contains.

Claims

1. A photovoltaic test system (100), comprising a photovoltaic power station (1) provided with several photovoltaic modules and a power optimizer installed at the current output of the photovoltaic power station (1) to improve the power generation efficiency of the photovoltaic power station, characterized in that: The photovoltaic test system (100) also includes a shade bracket (2) built on the side of the photovoltaic power station (1), and the shade bracket (2) includes a support frame (21) and a shade cloth (22) installed on the support frame ), the shading cloth (22) forms a shadow on the photovoltaic module of the photovoltaic power station (1) along the sunlight direction.

2. The photovoltaic test system according to claim 1, characterized in that: the support frame (21) comprises two columns (211) that are mutually horizontal and perpendicular to the ground and a beam (212) connecting the two columns, the beam (212) is located between the bottom and the top of the column (211).

3. The photovoltaic test system according to claim 2, characterized in that: the beam (212) and the column (211) are perpendicular to each other.

4. The photovoltaic test system according to claim 2, characterized in that: the shielding cloth (2) is arranged between the beams (212) and forms a certain angle with the surface of the photovoltaic module.

5. The photovoltaic test system according to claim 4, characterized in that: said columns (211) and beams (212) are equally spaced with through holes (213), and columns and beams pass bolts (214) and nuts (215) is fixedly connected, and described bolt (214) passes through the through hole on the beam and the column.

6. A photovoltaic test system shade bracket, characterized in that: the shade bracket (2) comprises a support frame (21) and a shade cloth (22) installed on the support frame (21).

7. Photovoltaic testing system shade support according to claim 6, is characterized in that: described supporting frame (21) comprises two upright columns (211) that are mutually horizontal and perpendicular to the ground and the beam (212) that connects two upright columns, so The beam (212) is located between the bottom end and the top end of the column (211).

8. The photovoltaic test system shade support according to claim 7, characterized in that: the beam (212) and the column (211) are perpendicular to each other.

9. The photovoltaic test system shade bracket according to claim 8, characterized in that: said uprights (211) and crossbeams (212) are equidistantly provided with through holes (213), uprights (211) and crossbeams (212) ) is fixedly connected with the nut (215) by the bolt (214), and the bolt (214) passes through the through holes on the beam (212) and the column (211).