CN203660987U - High-power optically focused photovoltaic battery test system - Google Patents
High-power optically focused photovoltaic battery test system Download PDFInfo
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- CN203660987U CN203660987U CN201320796784.4U CN201320796784U CN203660987U CN 203660987 U CN203660987 U CN 203660987U CN 201320796784 U CN201320796784 U CN 201320796784U CN 203660987 U CN203660987 U CN 203660987U
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Abstract
The utility model discloses a high-power optically focused photovoltaic battery test system. The system comprises a light source, an optically focused system and a secondary uniformization system, wherein the light source is a solar simulation light source; the optically focused system receives simulation sunshine emitted by the light source, outputs a convergent light beam with a certain energy concentration ratio, and comprises a convergent lens and a diaphragm which is disposed between the light source and the convergent lens and provided with an adjustable aperture; and the light uniformization system enables the convergent light beam to be uniformly irritated on a detected battery sheet. According to the high-power optically focused photovoltaic battery test system, the diaphragm is arranged between the light source and the convergent lens, so that large-area uniform parallel light can be outputted; by continuously adjusting the area of the diaphragm aperture, the total light energy received by the detected battery sheet can be continuously adjusted; and the uniformization system employs a light funnel or a trapezoid prism so that the light uniformization effect can be achieved by using multiple total reflection of the convergent light beam in the light funnel or the trapezoid prism.
Description
Technical field
The application belongs to photovoltaic field, particularly relates to a kind of high power condensation photovoltaic battery test macro.
Background technology
In recent years, solar cell, as a kind of novel regenerative resource, has more and more received people's concern, and its status on energy industry is also more and more important.Along with the development of heliotechnics and people are for constantly deeply the probing into of high performance solar batteries, tie concentrating solar battery system that the high performance solar batteries that forms and concentrating component form jointly and be bound to become the main flow of solar cell application by multiple PN.
For the solar cell of multiple PN knots, in actual application, not often that on-line operation is out of doors under sunlight, but to a large-area sunlight be converged to a very little battery surface by collector lens, make like this this solar cell surface unit are receive higher than the even light intensity of hundred times (specifically depending on the ratio of lens area and lens focus facula area size) of several times of common sunlights, so just make an onesize solar cell produce higher output current (output current can be directly proportional to light concentrating times) and output voltage, therefore can significantly improve the power output of solar cell.
But at different intensities of illumination and different temperature, the electric current-voltage characteristic of solar cell also can change.Therefore, need check well behaved battery under the condition of 1 standard sunlight (outdoor daylight) whether under high power concentrator condition, to still have good current-voltage characteristic, and wish can find out this battery can export the highest power output under how many light concentrating times, has the highest energy conversion efficiency etc. under how many light concentrating times.Solar cell optically focused test macro is exactly a kind ofly can be under higher than common sunlight light intensity several times or the condition of hundreds of times carry out current/voltage performance test and effective record test data (open circuit voltage to solar cell, short circuit current, fill factor, curve factor, efficiency, series resistance, parallel resistance etc.) and i-v curve a set of holonomic system.
In current solar cell optically focused field tests, be all often by adding collector lens or directly replacing the method for traditional xenon source to realize optically focused test with the light source of high light intensity.
For example, Fig. 1 shows a kind of test macro of realizing optically focused by adding Fresnel Lenses.It comprises analog light source 10, collector lens (such as Fresnel Lenses) 20, sample stage 40, light source controller 50, test macro 60 etc.Test battery 30 is placed on sample stage 40.Collector lens 20 is for assembling by analog light source 10 simulated solar irradiation that for example standard xenon lamp source is sent.The hot spot of the high light intensity of being assembled by collector lens 20 is radiated on test battery 30.Light source controller 50 can be used for regulating the power of analog light source 10 to carry out the simulated solar light intensity that control simulation light source 1 is exported.Test macro 60 comprises semiconductor parameter instrument, computer etc., is all electrically connected to light source controller 50 and test battery 30 by wire, in real time test battery 30 being carried out to current/voltage performance test.
The light concentrating times of above-mentioned test macro is to be determined by the area of Fresnel Lenses 20 and the ratio of the area by being radiated at the hot spot in battery 30 planes after Fresnel Lenses 20, can be by adjusting the vertical range of Fresnel Lenses 20 to battery 30 surfaces, (facula area must be larger than cell area to change the size of facula area, lens area/cell area is the theoretical maximum light concentrating times that can meet of these lens), to reach the object that regulates light concentrating times, thereby realize the test to the battery performance under different light concentrating times.
But due to existence and the loss of light in route of transmission of scattered light, light concentrating times is not proportional linearly to the distance of battery surface with collector lens, therefore often can not calibrate accurately, quantitatively light concentrating times.In other words, in the situation that light intensity is certain, the optically focused test macro of existing employing Fresnel Lenses all can only merely increase or reduce light concentrating times by the position that changes Fresnel Lenses, and tester can not know the light concentrating times of the hot spot that is irradiated to battery surface exactly.
In addition, adopt condensation light source to realize the system of optically focused test, standard sources is directly replaced by the condensation light source with certain light concentrating times, directly battery is tested, do not need to add any collector lens.Though can determine quantitatively so single light concentrating times, tested hot spot light concentrating times can not to adjust be the large shortcoming of one, and condensation light source involves great expense, and is difficult to extensive use.
Chinese patent the 201210558836.4th discloses a kind of solar cell optically focused test macro, and it is adjustable to realize light concentrating times by a diaphragm is set, and tester can know the light concentrating times of the hot spot that is irradiated to battery surface exactly simultaneously.But it arranges diaphragm the below of collector lens, there is following shortcoming: because the convergent beam energy after lens are assembled is higher, can bring the obvious rising of the local temperature of diaphragm, and the convergent beam of high-energy optically focused ratio is after diaphragm scattering, also can cause near the obvious rising of other part temperatures of diaphragm, thereby bring potential risk to the stability of a system.
In view of this, be necessary to provide a kind of novel high power condensation photovoltaic battery test macro.
Utility model content
The purpose of this utility model is to provide a kind of high power condensation photovoltaic battery test macro, the problem that solve that light concentrating times in prior art cannot accurately be determined, light concentrating times can not adjustable and diaphragm local temperature obviously raises continuously on a large scale.
For achieving the above object, the utility model provides following technical scheme:
The application discloses a kind of high power condensation photovoltaic battery test macro, comprising:
Light source, described light source is sun simulating light source;
Condenser system, receives the simulated solar irradiation that described light source sends the convergent beam of exporting certain energy optically focused ratio, and described condenser system comprises the adjustable diaphragm of convergent lens and the aperture between described light source and convergent lens;
The even photosystem of secondary, makes described convergent beam uniform irradiation on tested cell piece.
Preferably, in above-mentioned high power condensation photovoltaic battery test macro, the even photosystem of described secondary is light funnel or Dove prism.
Preferably, in above-mentioned high power condensation photovoltaic battery test macro, described smooth funnel is fixed on three-dimensional motion platform.
Preferably, in above-mentioned high power condensation photovoltaic battery test macro, the even photosystem of described secondary, for being designed to the secondary light uniforming device form such as Dove prism or light funnel, makes the convergent beam of convergent lens output be radiated on measured device through after secondary light uniforming device with total reflection condition.
Compared with prior art, the utility model has the advantage of:
1, diaphragm is arranged between light source and collector lens, now irradiate or see through on the one hand the light of diaphragm, the large evenly directional light of area of still exporting for analog light source, general energy density is near a sun intensity, energy density, far below the convergent beam energy density after lens are assembled, can avoid the local temperature of diaphragm obviously to raise; Because now light source area is larger, the adjustable space of the meaning aperture of the diaphragm is also larger on the other hand, thereby by the area of the continuous setup aperture of the diaphragm, total light energy that can realize the acceptance of mesuring battary sheet is adjustable continuously, is also that light concentrating times is adjustable continuously.
2, even photosystem adopts light funnel or Dove prism, can utilize the multiple total reflection of convergent beam in light funnel or Dove prism on the one hand, and reach the effect of even light; On the other hand due to indoor sunlight analog light source, be different from after all real sunlight, can be by even photo structure in analog light source system etc., as the even photo structure of compound eye generally using images in device under test surface, thereby cause cell piece to be subject to light inhomogeneous in optically focused test, and the even photosystem such as light funnel or Dove prism adopting in the utility model can overcome the imaging of lens on light origin system and the inhomogeneous impact of light that brings; Finally according to cell shapes, light funnel or Dove prism bottom plane can be by being designed to the size the same with cell shapes, to realize mating of optically focused light spot shape and cell shapes.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1 shows that the overall structure schematic diagram of solar cell optically focused test macro in prior art;
Figure 2 shows that the overall structure schematic diagram of high power condensation photovoltaic battery test macro in the utility model specific embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.The example of these preferred implementations illustrates in the accompanying drawings.The execution mode of the present utility model of describing shown in accompanying drawing and is with reference to the accompanying drawings only exemplary, and the utility model is not limited to these execution modes.
At this, also it should be noted that, for fear of the details because of unnecessary fuzzy the utility model, only show in the accompanying drawings with according to the closely-related structure of scheme of the present utility model and/or treatment step, and omitted other details little with the utility model relation.
Shown in ginseng Fig. 2, in the utility model preferred embodiment, high power condensation photovoltaic battery test macro comprises light source 1, and light source 1 sends simulated solar irradiation.Light source 1 adopts standard xenon lamp, and it can comprise the parts such as light source switch, filter.Light source 1 can also be light-pulse generator.
High power condensation photovoltaic battery test macro also comprises condenser system 2, and condenser system 2 receives the simulated solar irradiation that light source 1 sends the convergent beam of exporting certain energy optically focused ratio.Condenser system comprises the adjustable diaphragm 22 of convergent lens 21 and the aperture between light source 1 and convergent lens 21.
High power condensation photovoltaic battery test macro also comprises the even photosystem 3 of secondary, and the even photosystem 3 of secondary makes convergent beam uniform irradiation on tested cell piece.
The even photosystem 3 of secondary is preferably light funnel, and it receives to meet total reflection condition the convergent beam of being exported by condenser system 2, and finally makes convergent beam be radiated at equably on test battery sheet 4.Test battery sheet 4 is positioned on sample stage 5.
Light funnel is installed on three-dimensional motion platform; by the control of three-dimensional motion platform; can realize the motion control to light funnel three-dimensional; on the one hand in the time changing test sample; three-dimensional moving mechanism can be controlled light funnel to another service position; realize the protection of light funnel, changing after test sample on the other hand, again flexible adjustment and the recovery of controllable testing light path.
In other embodiments, the even photosystem 3 of secondary can also be parallel light lens, and the light that parallel light lens can make convergent lens assemble is converted into directional light output.The even photosystem of secondary can also be designed to Dove prism secondary light uniforming device form, and the convergent beam of convergent lens output is radiated on measured device through after secondary light uniforming device with total reflection condition.
The method of testing of above-mentioned high power condensation photovoltaic battery test macro is as follows:
S1, light source continuous wave output or pulse output simulated solar irradiation;
S2, simulated solar irradiation pass through respectively diaphragm and convergent lens, by regulating the pore size of diaphragm, to export the convergent beam of certain energy optically focused ratio;
S3, by the even photosystem of secondary, convergent beam is radiated on tested cell piece equably, the even photosystem of secondary is three-dimensional adjustable light funnel, and receive convergent beam to meet total reflection condition, and finally make convergent beam uniform irradiation on tested cell piece.
In sum, the utility model has the advantage of:
1, diaphragm is arranged between light source and collector lens, now irradiate or see through on the one hand the light of diaphragm, the large evenly directional light of area of still exporting for analog light source, general energy density is near a sun intensity, energy density, far below the convergent beam energy density after lens are assembled, can avoid the local temperature of diaphragm obviously to raise; Because now light source area is larger, the adjustable space of the meaning aperture of the diaphragm is also larger on the other hand, thereby by the area of the continuous setup aperture of the diaphragm, total light energy that can realize the acceptance of mesuring battary sheet is adjustable continuously, is also that light concentrating times is adjustable continuously.
2, even photosystem adopts light funnel or Dove prism, can utilize the multiple total reflection of convergent beam in light funnel or Dove prism on the one hand, and reach the effect of even light; On the other hand due to indoor sunlight analog light source, be different from after all real sunlight, can be by even photo structure in analog light source system etc., as the even photo structure of compound eye generally using images in device under test surface, thereby cause cell piece to be subject to light inhomogeneous in optically focused test, and the even photosystem such as light funnel or Dove prism adopting in the utility model can overcome the imaging of lens on light origin system and the inhomogeneous impact of light that brings; Finally according to cell shapes, light funnel or Dove prism bottom plane can be by being designed to the size the same with cell shapes, to realize mating of optically focused light spot shape and cell shapes.
Finally, also it should be noted that, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.
Claims (4)
1. a high power condensation photovoltaic battery test macro, is characterized in that, comprising:
Light source, described light source is sun simulating light source;
Condenser system, receives the simulated solar irradiation that described light source sends the convergent beam of exporting certain energy optically focused ratio, and described condenser system comprises the adjustable diaphragm of convergent lens and the aperture between described light source and convergent lens;
The even photosystem of secondary, makes described convergent beam uniform irradiation on tested cell piece.
2. high power condensation photovoltaic battery test macro according to claim 1, is characterized in that: the even photosystem of described secondary is light funnel.
3. high power condensation photovoltaic battery test macro according to claim 2, is characterized in that: described smooth funnel is fixed on three-dimensional motion platform.
4. high power condensation photovoltaic battery test macro according to claim 1, it is characterized in that: the even photosystem of described secondary is designed to Dove prism or light funnel form, the convergent beam of convergent lens output is radiated on measured device through after secondary light uniforming device with total reflection condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320796784.4U CN203660987U (en) | 2013-12-05 | 2013-12-05 | High-power optically focused photovoltaic battery test system |
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| CN201320796784.4U CN203660987U (en) | 2013-12-05 | 2013-12-05 | High-power optically focused photovoltaic battery test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506139A (en) * | 2014-12-26 | 2015-04-08 | 中山大学 | Multifunctional laser device for concentrating photovoltaic test |
| CN104749193A (en) * | 2015-04-02 | 2015-07-01 | 深圳市斯尔顿科技有限公司 | Device for keeping constant output light power in lens stress detection |
| CN113465192A (en) * | 2021-08-12 | 2021-10-01 | 西安热工研究院有限公司 | Photovoltaic photo-thermal and thermal complementary energy supply and storage system |
-
2013
- 2013-12-05 CN CN201320796784.4U patent/CN203660987U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506139A (en) * | 2014-12-26 | 2015-04-08 | 中山大学 | Multifunctional laser device for concentrating photovoltaic test |
| CN104749193A (en) * | 2015-04-02 | 2015-07-01 | 深圳市斯尔顿科技有限公司 | Device for keeping constant output light power in lens stress detection |
| CN104749193B (en) * | 2015-04-02 | 2018-12-14 | 深圳市斯尔顿科技有限公司 | It can keep the eyeglass stress detection device that illumination light Output optical power is constant |
| CN113465192A (en) * | 2021-08-12 | 2021-10-01 | 西安热工研究院有限公司 | Photovoltaic photo-thermal and thermal complementary energy supply and storage system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20170718 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20170718 |