KR20200121048A - Device and method for hot spot test of photovoltaic module - Google Patents

Abstract

The present invention relates to a device which can easily perform a hot spot test. As a hot spot test device for a photovoltaic module having a plurality of photovoltaic cells installed thereon, the hot spot test device comprises: a fixing jig having a photovoltaic module installed thereon; a light source irradiating light so that the photovoltaic module can generate power; an adjustment unit having a plurality of through holes corresponding to each of the plurality of photovoltaic cells installed in the photovoltaic module, and a shielding membrane capable of individually opening and closing each through hole to adjust the light irradiated from the light source to the photovoltaic module; and an evaluation unit measuring and evaluating power generation performance of the photovoltaic module. The light passing through each through hole is incident into only the corresponding photovoltaic cell. The adjustment unit performs adjustment without allowing a person to directly attach a tape for the hot spot test, thereby having an effect of more quickly and accurately performing the hot spot test. Moreover, since a space in which the person moves to attach the tape is not required, a size of the device can be manufactured small and an installation place is not limited.

Description

Solar cell module hot spot test device and hot spot test method {DEVICE AND METHOD FOR HOT SPOT TEST OF PHOTOVOLTAIC MODULE}

The present invention relates to an apparatus for testing the performance and characteristics of a solar cell module, and more particularly, to an apparatus for performing a hot spot test when no light is irradiated to a solar cell.

A test is conducted to evaluate the characteristics of the solar cell module including the solar cell when a shade is formed. Unlike tests that are generally conducted when shade is formed, the hot spot test is a test that evaluates the performance and characteristics of a crystalline solar cell module when one solar cell fails to fully generate power. to be.

A plurality of solar cells are electrically connected to the crystalline solar cell module, and a bypass diode is installed in case electricity does not flow through each solar cell. The hot spot test is a test to evaluate the effect on the entire solar cell module when each solar cell included in the solar cell module does not generate electricity.

Currently, in order to perform a hot spot test on a solar cell module, a person directly attaches a black tape to a location where light is incident on the solar cell to prevent power generation from being performed, and the solar cell included in the solar cell module Perform the test while changing the position of the tape as many times as possible. However, with the recent increase in solar cell modules, more than 60 solar cell cells are being arranged in one solar cell module, and time and cost are intensified as a person performs an experiment while changing the position of the tape. In addition, in constructing a hot spot test apparatus, a space for a person to attach a tape must be provided, so that the size of the apparatus is increased and the installation place is limited.

"Hot spot susceptibility and testing of PV modules", E. Molenbroek, D.W. Waddington, K.A. Emery, The Conference Record of the Twenty-Second IEEE Photovoltaic Specialists Conference-1991

An object of the present invention is to provide an apparatus capable of easily performing a hot spot test as to solve the problems of the prior art described above.

A hot spot test apparatus for a solar cell module according to the present invention for achieving the above object is a hot spot test apparatus for a solar cell module in which a plurality of solar cell cells are installed, comprising: a fixing jig in which the solar cell module is installed; A light source for irradiating light so that the solar cell module can perform power generation; In order to control the light irradiated from the light source to the solar cell module, a control unit having a plurality of through-holes corresponding to each of the plurality of solar cell installed in the solar cell module and a shielding membrane capable of individually opening and closing each through-hole; And an evaluation unit measuring and evaluating the power generation performance of the solar cell module, wherein light passing through each through hole is incident only to a corresponding solar cell cell.

It is preferable that the operation of opening and closing the through hole of the shielding membrane is performed by receiving an external signal.

It is preferable that the ratio of the screen covering the through hole can be adjusted.

The screen is made of cloth and is preferably operated by a drive device, and the screen is wound on a roll and is unfolded by the drive device to cover the through hole, or the screen is unfolded in a way that a fan is spread based on the axis of rotation. It is desirable to operate to cover it.

When air is injected into the inside of the screen, it is preferable to operate to cover the through hole while spreading.

The fixing jig may be a housing in which the solar cell module is installed, and it is preferable to further include a temperature control device capable of adjusting the temperature inside the housing or a humidity control device capable of adjusting the humidity inside the housing.

A hot spot test method of a solar cell module according to another aspect of the present invention is a hot spot test method using a hot spot test apparatus for a solar cell module in which a plurality of solar cell cells are installed. A first step of sequentially blocking light incident on the battery cells one by one, and evaluating the power generation performance of the solar cell module by the remaining solar cells except for one blocked solar cell; And a second step of evaluating the power generation performance of the solar cell module according to the ratio of the area that one solar cell contributes to power generation by adjusting the open area of the through hole corresponding to the specific solar cell by operating the screen. Characterized in that.

In the case of not being used for power generation in the first step, it is desirable to select one solar cell that has the most influence on the power generation performance of the solar cell module, and the second step is performed for the solar cell selected in the first step. Good to do.

A hot spot test apparatus for a solar cell module according to another aspect of the present invention is a hot spot test apparatus for a solar cell module in which a thin film solar cell is installed, comprising: a fixing jig in which the solar cell module is installed; A light source for irradiating light so that the solar cell module can perform power generation; In order to control the light irradiated from the light source to the solar cell module, a control unit having a through hole corresponding to the thin film solar cell installed in the solar cell module and a shielding film capable of opening and closing the through hole; And an evaluation unit measuring and evaluating the power generation performance of the solar cell module, wherein an area through which light passing through the through hole reaches the solar cell is the same as the area of the solar cell.

It is preferable that the operation of opening and closing the through hole of the shielding membrane is performed by receiving an external signal.

It is desirable to be able to adjust the ratio in which the screen covers the through holes.

The screen may be made of cloth and operated by a driving device, or may be operated to cover the through hole while spreading when air is injected into the screen.

The fixing jig may be a housing in which the solar cell module is installed, and it is preferable to further include a temperature control device capable of adjusting the temperature inside the housing or a humidity control device capable of adjusting the humidity inside the housing.

The hot spot test method of the solar cell module according to the last aspect of the present invention is a hot spot test method using the hot spot test apparatus for the solar cell module in which the thin-film solar cell is installed, and the through hole is opened by manipulating the screen. By adjusting the area, it is characterized by evaluating the power generation performance of the solar cell module according to the area ratio that the thin film solar cell contributes to power generation.

The present invention configured as described above has an effect that the hot spot test can be performed more quickly and accurately by adjusting the control unit without directly attaching a tape for the hot spot test.

In addition, since there is no need for a person to form a moving space in order to attach the tape, the size of the device can be made small, and there is an excellent effect that the installation location is not limited.

1 is a schematic diagram showing the configuration of a hot spot test apparatus for a crystalline solar cell module according to an embodiment of the present invention.
2 is a schematic diagram showing a configuration of a hot spot test apparatus for a crystalline solar cell module according to another embodiment of the present invention.
3 is a view for explaining the operation of the hot spot test apparatus according to FIG. 1.
4 is a view for explaining the operation of the hot spot test apparatus according to FIG. 2.
FIG. 5 is a diagram for explaining a first form in which the screening of the hot spot testing apparatus according to the present embodiment operates.
6 is a view for explaining a second form in which the screening of the hot spot testing apparatus according to the present embodiment operates.
7 is a schematic diagram showing the configuration of a hot spot test apparatus for a thin film solar cell module according to an embodiment of the present invention.
8 is a schematic diagram showing a configuration of a hot spot test apparatus for a thin film solar cell module according to another embodiment of the present invention.
9 is a view for explaining the operation of the hot spot test apparatus according to FIG. 7.
10 is a view for explaining the operation of the hot spot test apparatus according to FIG. 8.

An embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

However, the embodiments of the present invention may be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The shapes and sizes of elements in the drawings may be exaggerated for clearer description, and elements indicated by the same reference numerals in the drawings are the same elements.

And throughout the specification, when a part is "connected" to another part, this includes not only the case of being "directly connected", but also the case of being "electrically connected" with another element interposed therebetween. In addition, when a part "includes" or "includes" a certain component, it means that other components are not excluded and other components may be further included or provided unless otherwise specified. do.

In addition, terms such as "first" and "second" are used to distinguish one component from other components, and the scope of the rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

1 is a schematic diagram showing the configuration of a hot spot test apparatus for a crystalline solar cell module according to an embodiment of the present invention.

The solar cell module 300 to be tested in the present embodiment is a configuration in which a plurality of solar cell 310 is spaced apart from each other based on a crystalline solar cell.

The hot spot test apparatus of this embodiment includes a light source 100, an adjustment unit 200, a fixing jig 400, and an evaluation unit (not shown).

The light source 100 irradiates light to the solar cell module 300 so that photovoltaic power generation is performed in the solar cell 310.

The power generation unit is a device that measures and evaluates the power generation performance of the solar cell module 300, and various methods of evaluating the power generation performance of the solar cell module such as an I-V curve may be applied. The hot spot test to be measured in this embodiment is characterized in that the light irradiated to the solar cell module 300 is controlled, and the content of measuring and evaluating the performance of the solar cell module 300 is based on the conventional technology. Since it can be applied without limitation, detailed description is omitted.

The light source 100 is not particularly limited, but must satisfy a wavelength condition that is a criterion for a test for photovoltaic power generation of the solar cell 310. In addition, it may be a form in which light is radiated from one point in a radial manner, or a form in which light proceeds in a parallel direction by multiple light sources, surface light emission, or lenses. In the case of configuring the light to proceed in parallel toward the solar cell module 300, the distance between the light source 100 and the solar cell module 300 can be narrowed, thereby reducing the space required for installation of the hot spot test apparatus. . In addition, although it will be described in detail later, there is an advantage in that it becomes easy to adjust the light irradiated to the solar cell 310.

The control unit 200 is located between the light source 100 and the solar cell module 300, and the body itself is a material through which the light of the light source 100 does not pass, and the light can reach the solar cell 310. A plurality of through-holes 210 are formed to be able to.

At this time, each of the plurality of through holes 210 corresponds to one solar cell 310, and light passing through the one through hole 210 reaches only one solar cell 310. In addition, a shielding film 220 that can prevent light from passing through is positioned in the through hole 210, and when the through hole 210 is opened by opening the shielding film 220, light from the light source 100 is transmitted to the solar cell 310 And, when the shielding film 220 is closed, the light of the light source 100 does not reach the solar cell 310. This shielding film 220 operates to open and close while rotating only one of the plurality of through holes 210. In this case, one shielding member may be operated to cover one through hole 210 while moving the plurality of through holes 210. However, in the hot spot test apparatus of the present embodiment, a shielding film 220 that operates individually in each through hole 210 is installed to perform all of the hot spot tests of the second step to be described later. The shielding film 220 is configured so that a worker can operate it from the outside, and specific operations of each shielding film 220 will be described in detail later.

The location and number of the through holes 210 are determined corresponding to the location and number of the solar cell 310. In particular, the through hole 210 so that light passing through the open through hole 210 does not reach the solar cell 310 at a position corresponding to the through hole 210 closed by the shielding film 220. The position must be precisely adjusted. At this time, as described above, when the light from the light source 100 is configured to proceed in parallel toward the solar cell module 300, the effect of the light passing through the open through-hole 210 around the surrounding is small. Therefore, it is relatively easy to adjust the configuration and position of the adjustment unit 200 and control the light irradiated to the solar cell 310.

The fixing jig 400 is a component for fixing the adjustment unit 200 and/or the solar cell module 300 to a predetermined position.

As described above, since the through hole 210 of the control unit 200 and the solar cell 310 of the solar cell module 300 must be arranged at the correct position, the control unit 200 and the solar cell module 300 This constitutes a fixing jig 400 that can be installed and fixed in the correct position. In the embodiment of FIG. 1, a structure in which the adjusting part 200 and the solar cell module 300 are fixed to a pair of fixing jig 400 is shown, and the light source 100 and the adjusting part 200 and the solar cell module ( If the position of 300) is all considered, and the adjustment unit 200 and the solar cell module 300 are installed at the correct position of the fixing jig 400, the effect of light passing through the open through-hole 210 around It is configured to perform hot spot tests without this.

2 is a schematic diagram showing a configuration of a hot spot test apparatus for a crystalline solar cell module according to another embodiment of the present invention.

The hot spot test apparatus of the second embodiment includes a light source 100, an adjustment unit 200, a housing 500, and an evaluation unit (not shown). In each component, descriptions of the same parts as those of the hot spot testing apparatus of the first embodiment described above will be omitted.

In the second embodiment, the adjusting unit 200 and the solar cell module 300 are installed in the housing 500, so that the housing 500 performs the function of the fixing jig 400 of the first embodiment. In this case, the housing 500 is configured to surround the entire solar cell module 300 located therein, and conditions inside the housing 500 are adjusted to reproduce the actual use environment of the solar cell module 300. Specifically, by controlling the internal temperature and humidity, the hot spot test may be performed under various conditions in which the solar cell module 300 is used. To this end, a temperature control device and a humidity control device may be installed.

At this time, the through hole 210 of the control unit 200 can be blocked with a member of a transparent material so that the condition inside the housing 500 can be completely controlled, and the loss of light passing through the through hole 210 can be minimized. Any material that can be used can be applied. As another method, by configuring the light source 100 in consideration of loss of light due to a member of a transparent material blocking the through hole 210, some of the light lost in the process of passing through the transparent material is transferred to the solar cell module 300. It can also be made to show properties suitable for the test of

Meanwhile, since the hot spot test apparatus shown in FIGS. 1 and 2 is applied to a solar cell module in which a plurality of solar cell cells are spaced apart, a concentrator photovoltaic (CPV) module in which the solar cell cells are spaced apart. It can also be applied to The condensing solar cell module is a solar cell module in which a condensing unit such as a reflector or a lens for condensing sunlight is added, and the above-described hot spot test apparatus may be applied if the solar cells are separated from each other. However, in the condensing solar cell module, since the light incident to the periphery of the solar cell by the condensing unit is also used for power generation, the positions of the through holes and the shielding film must be formed according to the characteristics of the condensing unit.

Hereinafter, a specific operation of the hot spot test apparatus shown in FIGS. 1 and 2 for performing a hot spot test on a solar cell module in which a plurality of solar cells are divided and disposed will be described.

The hot spot test by the hot spot test apparatus of this embodiment proceeds in two steps.

In the first step of the hot spot test, among the solar cell 310 installed in the solar cell module 300, the solar cell 310 having the lowest efficiency of the solar cell module 300 when power generation is not performed. Select.

The first step of such a hot spot test is the power generation of the solar cell module 300 by the remaining solar cells except for one blocked solar cell while sequentially blocking the light incident on the solar cell 310. It is done by evaluating the performance. As previously discussed, in the related art, the operator attached a black tape to prevent the light of the light source from entering a specific solar cell, and the first step was performed, and the process of transferring the tape as many as the number of solar cell cells had to be repeated. .

On the other hand, in the present embodiment, as shown in Figs. 3 and 4, the control unit 200 is operated, so that the first step can be performed quickly and accurately compared to the operator directly moving the tape.

3 is a view for explaining the operation of the hot spot test apparatus according to FIG. 1, and FIG. 4 is a diagram for explaining the operation of the hot spot test apparatus according to FIG. 2.

As shown, the adjusting unit 200 of the hot spot testing apparatus of this embodiment, so that only one through hole 210 is covered by the shielding film 220 and the remaining through holes 210 are opened, the shielding film ( It operates to sequentially change the position of the through hole 210 covered by 220), and a power generation test of the solar cell module 300 is performed in each case. At this time, the operator can perform the first step of the hot spot test more quickly by manipulating the control unit 200 from the outside, and by linking the operation of the control unit 200 and the power generation test operation of the solar cell module 300 It can also be configured to automatically perform the first step of the hot spot test.

By the first stage test, the power generation performance of the solar cell module is evaluated when the solar cell is not used for power generation one by one. From these results, it is possible to select one solar cell that most affects the power generation performance of the solar cell module when not used for power generation.

The second step of the hot spot test evaluates the power generation performance of the solar cell module when power generation is performed on only a partial area of the solar cell 310.

This second step is generally performed for a solar cell selected as having the most influence on the power generation performance of the solar cell module in the first step. In the related art, an operator evaluated the power generation performance of a solar cell module by changing and attaching a black tape manufactured with a different area. However, there is a problem in that accurate measurement is difficult due to the problem that the ratio of the area to be covered varies depending on the tape attachment position. In addition, since the operator repeats the process of attaching the tape by replacing the tape to adjust the obscured ratio, it takes a long time for the evaluation, and the space for the operator to attach the tape must be provided. There was also a problem that it became large and the installation place was limited.

On the other hand, in this embodiment, as shown in Figs. 5 and 6, by allowing the screening film 220 of the adjustment unit 200 to operate, the operator can perform the second step faster and more accurately than directly transferring the tape. I can.

In the first step of the hot spot test, the operation of blocking the through hole 210 through the shielding film 220 was not described in detail, but the adjusting unit 200 can change the open state and the closed state of the through hole 210 Garimmak 220 installed in is installed to be movable.

5 is a view for explaining a first form of operation of the screening of the hot spot test apparatus according to the present embodiment, and FIG. 6 is a view for explaining a second form of operation of the screen of the hot spot test apparatus according to the present embodiment to be.

First, as shown in FIG. 5, the shielding film 220 may be configured to operate in a manner in which the shielding film 220 moves horizontally along the through hole 210 and spreads out.

For example, the thin shielding film 220 member is wound in a roll shape on one side, and by pulling and moving one end of the shielding film 220 according to an external signal, the wound shielding film 220 may be configured to unfold. In this case, a driving device such as a motor for moving one end of the shielding membrane 220 along the through hole 210 is required, and a rail or the like is preferably installed so that the shielding membrane 220 can be unfolded and moved.

In another way, the end of the screen is not moved by a driving device such as a motor, but a screen 220 that is spread when air is filled inside is installed, and when air is injected according to an external signal, it is shown in FIG. As shown, the shielding layer 220 may be configured to be unfolded.

As a second operation method, as illustrated in FIG. 6, the shielding film 220 may be unfolded around a rotation axis, such as an automobile wiper or fan unfolding.

Even in this case, the shielding film 220 may be configured to be rotated and unfolded by a driving device such as a motor, or may be configured such that air is injected and unfolded as shown in FIG. 6.

In both of the above-described forms, by adjusting the degree to which each shielding film 220 is spread, the ratio of the area in which the through hole 210 is covered by the shielding film 220 can be adjusted. At this time, when the area where the light passing through the through hole 210 reaches the solar cell 310 matches the area of the solar cell 310, the area in which the solar cell 310 performs power generation is determined. It means you can adjust it. Accordingly, as illustrated in FIGS. 5 and 6, by controlling the shielding film 220 to operate, the second step can be performed faster and more accurately than the operator directly replacing the tape.

The hot spot test apparatus according to the present embodiment performs a power generation test of the solar cell module 300 while adjusting the ratio of the shielding film 220 of the adjusting unit 200 to cover the through hole 210. At this time, the operator can perform the second step of the hot spot test faster by manipulating the control unit 200 from the outside, and the operation of the screen 220 and the power generation test operation of the solar cell module 300 are linked to automatically It can also be configured to perform the second stage of the hot spot test for several area ratios.

On the other hand, the form in which the screen 220 operates and the method of operating the screen 220 are not limited to the above-described configuration, and any configuration capable of adjusting the area covering the through hole 210 of the screen 220 Composition and form can be applied.

Through the second stage test, the power generation performance of the solar cell module according to the area that contributes to the power generation of a specific solar cell is evaluated.

As described above, according to the hot spot test apparatus according to the present invention, when not used for power generation, the first step of the hot spot test of selecting one solar cell that most affects the power generation performance of the solar cell module It can be seen that the second step of the hot spot test, which evaluates the power generation performance of the solar cell module according to the area contributing to the power generation of a specific solar cell and, can be performed very easily and accurately. In addition, compared to the conventional case where the operator directly attaches the tape, the size of the device can be made smaller, and as a result, there is an excellent effect of greatly reducing the limitation of the installation location.

On the other hand, unlike a crystalline solar cell module or a condensing solar cell module in which a plurality of solar cell cells described above are separated, a thin-film solar cell module has a structure in which the solar cell installed inside is not spatially separated. Spot test could not be performed.

However, as described above, the hot spot test apparatus according to the present invention can be configured to perform a hot spot test suitable for a thin-film solar cell module because the area covered by the shielding film can be adjusted.

7 is a schematic diagram showing the configuration of a hot spot test apparatus for a thin film solar cell module according to an embodiment of the present invention.

The thin film solar cell module 300 to be tested in the present embodiment is a configuration in which the solar cell 310 is not separated and is disposed integrally.

The hot spot test apparatus of this embodiment includes a light source 100, an adjustment unit 200, a fixing jig 400, and an evaluation unit (not shown). Since the light source 100, the fixing jig 400, and the power generation unit are the same as those of the embodiment of FIG. 1, detailed descriptions are omitted.

The adjusting unit 200 of the present embodiment includes one through hole 210 corresponding to the solar cell 310 configured as an integral type. In addition, a shielding film 220 that can prevent light from passing through is positioned in one through hole 210, and the shielding film 220 moves in the same manner as shown in FIG. 5 to cover at least a portion of the through hole 210. I can. At this time, the portion where the through hole 210 is covered by the shielding film 220 does not perform photovoltaic power generation because the light of the light source 100 does not reach the solar cell 310, and the through hole 210 is covered by the shielding film ( In the portion not covered by 220), light from the light source 100 reaches the solar cell 310 to perform photovoltaic power generation.

8 is a schematic diagram showing a configuration of a hot spot test apparatus for a thin film solar cell module according to another embodiment of the present invention.

The hot spot test apparatus shown in FIG. 8 includes a light source 100, an adjustment unit 200, a housing 500, and a power generation unit (not shown). The configuration of the adjustment unit 200 is the same as described for the hot spot testing apparatus shown in FIG. 7, and the housing 500 is the same as described for the hot spot testing apparatus shown in FIG. 2.

A specific operation for the hot spot test apparatus shown in FIGS. 7 and 8 to perform a hot spot test on the thin film solar cell module will be described.

A method of evaluating the power generation performance of the solar cell module when power generation is performed for only a partial area of the solar cell 310 for the thin film solar cell module 300 including the solar cell 310 configured as an integral type The hot spot test is performed.

9 is a view for explaining the operation of the hot spot test apparatus according to FIG. 7, and FIG. 10 is a view for explaining the operation of the hot spot test apparatus according to FIG. 8.

As shown, the adjusting unit 200 of the hot spot testing apparatus according to the present embodiment adjusts the area covering the through hole 210 by moving the shielding film 220. At this time, when the area where the light passing through the through hole 210 reaches the solar cell 310 matches the area of the solar cell 310, the area in which the solar cell 310 performs power generation may be adjusted. I can. Finally, the power generation performance of the solar cell module according to the area ratio in which the thin film solar cell 310 of the solar cell module 300 performs power generation is evaluated.

In this case, a specific method for the shielding film 220 to cover the through hole 210 is generally applied as shown in FIG. 5, but the method shown in FIG. 6 may be applied depending on the shape of the solar cell module.

And a specific method of operating the screen 220, as described above, a driving device such as a motor may be applied, a method of injecting air into the screen may be applied, or other methods may be applied. have.

The present invention has been described above through preferred embodiments, but the above-described embodiments are only illustrative of the technical idea of the present invention, and various changes are possible within the scope not departing from the technical idea of the present invention. Those of ordinary knowledge will understand. Therefore, the scope of protection of the present invention should be interpreted not by specific embodiments, but by the matters described in the claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

100: light source
200: control unit
210: through hole
220: screen
300: solar cell module
310: solar cell
400: fixed jig
500: housing

Claims (22)

As a hot spot test device for a solar cell module in which a plurality of solar cell cells are installed,
Fixing jig on which the solar cell module is installed;
A light source for irradiating light so that the solar cell module can perform power generation;
In order to control the light irradiated from the light source to the solar cell module, a control unit having a plurality of through-holes corresponding to each of the plurality of solar cell installed in the solar cell module and a shielding membrane capable of individually opening and closing each through-hole; And
It includes an evaluation unit that measures and evaluates the power generation performance of the solar cell module,
A hot spot test apparatus for a solar cell module, characterized in that the light passing through each through hole is incident only to the corresponding solar cell.
The method according to claim 1,
The hot spot test apparatus for a solar cell module, characterized in that the operation of opening and closing the through hole of the shielding film is performed by receiving an external signal.
The method according to claim 1,
A hot spot test apparatus for a solar cell module, characterized in that the ratio of the screen covering the through hole can be adjusted.
The method according to claim 1,
The hot spot test apparatus for a solar cell module, wherein the screen is made of cloth and is operated by a driving device.
The method of claim 4,
The hot spot test apparatus for a solar cell module, characterized in that the screening film is wound on a roll and is unfolded by a driving device to cover the through hole.
The method of claim 4,
The hot spot test apparatus for a solar cell module, characterized in that the screen is unfolded in a manner in which a fan is unfolded based on a rotation axis and operates to cover the through hole.
The method according to claim 1,
The hot spot test apparatus for a solar cell module, characterized in that when the air is injected into the inside of the screen, it expands and operates to cover the through hole.
The method according to claim 1,
The hot spot test apparatus of a solar cell module, wherein the fixing jig is a housing in which the solar cell module is installed.
The method of claim 8,
A hot spot test apparatus for a solar cell module, further comprising a temperature control device capable of adjusting a temperature inside the housing.
The method of claim 8,
A hot spot test apparatus for a solar cell module, further comprising a humidity control device capable of adjusting the humidity inside the housing.
As a hot spot test method using the hot spot test apparatus of claim 1,
A first step of evaluating the power generation performance of the solar cell module by the remaining solar cell except for the one blocked solar cell, while sequentially blocking light incident on the plurality of solar cell cells by operating the shielding film; And
Including a second step of evaluating the power generation performance of the solar cell module according to the ratio of the area that one solar cell contributes to power generation by controlling the open area of the through hole corresponding to the specific solar cell by operating the screen. Hot spot test method of a solar cell module, characterized in that.
The method of claim 11,
In the first step, when not used for power generation, one solar cell cell that has the most influence on the power generation performance of the solar cell module is selected.
The method of claim 12,
A hot spot test method for a solar cell module, characterized in that performing a second step on the solar cell selected in the first step.
As a hot spot test device for a solar cell module equipped with a thin film solar cell,
Fixing jig on which the solar cell module is installed;
A light source for irradiating light so that the solar cell module can perform power generation;
In order to control the light irradiated from the light source to the solar cell module, a control unit having a through hole corresponding to the thin film solar cell installed in the solar cell module and a shielding film capable of opening and closing the through hole; And
It includes an evaluation unit that measures and evaluates the power generation performance of the solar cell module,
A hot spot test apparatus for a solar cell module, characterized in that the area through which light passing through the through hole reaches the solar cell is the same as the area of the solar cell.
The method of claim 14,
The hot spot test apparatus for a solar cell module, characterized in that the operation of opening and closing the through hole of the shielding film is performed by receiving an external signal.
The method of claim 14,
A hot spot test apparatus for a solar cell module, characterized in that the ratio of the screen covering the through hole can be adjusted.
The method of claim 14,
The hot spot test apparatus for a solar cell module, wherein the screen is made of cloth and is operated by a driving device.
The method of claim 14,
The hot spot test apparatus for a solar cell module, characterized in that when the air is injected into the inside of the screen, it expands and operates to cover the through hole.
The method of claim 14,
The hot spot test apparatus of a solar cell module, wherein the fixing jig is a housing in which the solar cell module is installed.
The method of claim 19,
A hot spot test apparatus for a solar cell module, further comprising a temperature control device capable of adjusting a temperature inside the housing.
The method of claim 19,
A hot spot test apparatus for a solar cell module, further comprising a humidity control device capable of adjusting the humidity inside the housing.
As a hot spot test method using the hot spot test apparatus of claim 14,
A hot spot test method for a solar cell module, characterized in that by controlling an area in which the through hole is opened by manipulating a screen to evaluate the power generation performance of the solar cell module according to an area ratio that the thin film solar cell contributes to power generation.

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