CN104579168A - Method for outdoor exposure test of photovoltaic component - Google Patents
Method for outdoor exposure test of photovoltaic component Download PDFInfo
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- CN104579168A CN104579168A CN201410844202.4A CN201410844202A CN104579168A CN 104579168 A CN104579168 A CN 104579168A CN 201410844202 A CN201410844202 A CN 201410844202A CN 104579168 A CN104579168 A CN 104579168A
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- photovoltaic module
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- photovoltaic component
- test
- outdoor exposure
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- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title abstract description 6
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 238000011056 performance test Methods 0.000 claims abstract description 21
- 238000010998 test method Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012346 open field test Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004153 renaturation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a method for an outdoor exposure test of a photovoltaic component. The method particularly comprises the following steps: (1) determining a test area according to a climate type, and selecting the area without the shadow as a sample delivery place on the test area; (2) testing the initial performance of the photovoltaic component to be tested; (3) mounting the photovoltaic component to be tested at the sample delivery place, and enabling the photovoltaic component to be tested to receive the maximum solar irradiation amount; (4) connecting the photovoltaic component to be tested to a load resistor so as to simulate the operating environment of the photovoltaic component to be tested; (5) setting up a meteorological parameter collecting system near the photovoltaic component to be tested; (6) monitoring the surface temperature of the photovoltaic component to be tested in a real-time manner; (7) testing the performance of the photovoltaic component to be tested at fixed periods, and comparing with initial performance test data so as to analyze the service environment condition. The method can be used for accurately judging the long-term performance and the quality stability of the photovoltaic component and determining the influence of a season alternating factor on the performance of the component, and is beneficial to building the relevance between the performance of the photovoltaic component and the environment factor.
Description
Technical field
The present invention relates to a kind of measuring technology of photovoltaic module, be specifically related to the outdoor exposure test method of a kind of photovoltaic module under typical weather conditions.
Background technology
Along with the exhaustion of traditional fossil energy and the aggravation of environmental pollution, be that a series of new forms of energy of representative obtain more and more higher concern because of the advantage such as sustainable, clean with solar energy.
In recent years, Solar use has entered into the practical stage of power plant construction, and photovoltaic module is the core cell of photovoltaic plant, and it plays transform light energy is the effect of electric energy.At present, most widely used is crystalline silicon photovoltaic module.Photovoltaic module works out of doors, the impact of the many factors such as light, heat, oxygen, humidity, stress, chemical etching can be subject to, wherein, temperature rising can cause the power of photovoltaic module to occur decay, attenuation amplitude is generally 0.4% ~ 0.5%/DEG C, in addition, the factors such as light, heat, humidity easily cause the material generation ageing failure of photovoltaic module, and then shorten the useful life of photovoltaic module.
In order to reduce photovoltaic module failure risk, the short-term experiment room accelerated test methods such as IEC61215, UL1703 in the industry, are extensively adopted to carry out gross certification.Although, laboratory accelerated test selects test parameters comparatively harsh, but because its environmental parameter and the actual service condition of photovoltaic module exist larger difference, therefore there is following problem: although (1) test parameters (temperature, humidity etc.) is more more extreme than actual weather, the weather of all reality can not be represented; The climatic enwronmental test case that uses of accelerated test cannot by shining upon, the environmental factor such as temperature humidity combines; (3) the test period is short, cycle count low (humid heat test of 200 thermal cycles or 1000 hours is only carried out with 6 week).
Be limited to the one-sidedness of above considerations and the extensity of photovoltaic module application region, existing laboratory accelerated test can not reduce the real Service Environment of photovoltaic module, also just photovoltaic module long-term behaviour and quality stability cannot be passed judgment on, so the outdoor exposure test carrying out photovoltaic module is essential to the actual performance and quality of understanding photovoltaic module in depth.
Define photovoltaic module in IEC 61215 standard and must carry out outdoor exposure test, and make total irradiation reach 60kWhm
– 2although photovoltaic module can receive full spectral irradiance with this understanding, because open-assembly time is shorter, the more difficult impact determining that season, alternation factor was brought assembly property.And, for the disappearance of Service Environment monitoring of photovoltaic module of carrying out outdoor exposure test, be also unfavorable for setting up photovoltaic module performance and associating of environmental factor and photovoltaic products is made improvements.
Summary of the invention
The object of this invention is to provide a kind of photovoltaic module outdoor exposure test method, can accurately pass judgment on photovoltaic module long-term behaviour and quality stability, determine the impact that season, alternation factor was brought assembly property, be conducive to setting up associating of photovoltaic module performance and environmental factor.
Above-mentioned purpose of the present invention realizes by the following technical solutions: a kind of photovoltaic module outdoor exposure test method, is characterized in that specifically comprising the following steps:
(1) determine test area according to climate type, the region that test area selects shadow-free to block is as throwing sample place;
(2) treat test light photovoltaic assembly and carry out initial performance test, record initial performance test data;
(3) photovoltaic module to be tested is arranged on and throws sample place and make photovoltaic module to be tested receive maximum solar irradiation;
(4) photovoltaic module to be tested is connected load resistance to simulate the running environment of photovoltaic module to be tested.
(5) near photovoltaic module to be tested, build meteorologic parameter acquisition system;
(6) the surface temperature of Real-Time Monitoring photovoltaic module to be tested;
(7) regularly treat test light photovoltaic assembly and carry out performance test, record performance test data, this performance test data and initial performance test data are compared to analyze Service Environment condition.
The present invention selects suitable throwing sample place before carrying out exposure test to photovoltaic module, and in exposure test process, adopt load resistance simulated light photovoltaic assembly operating mode, to guarantee the accuracy of test result, and the surface temperature of Real-Time Monitoring photovoltaic module, examine the combination of multiple environmental stress, therefore, it is possible to accurately pass judgment on photovoltaic module long-term behaviour and quality stability, determine the impact that season, alternation factor was brought assembly property, be conducive to setting up associating of photovoltaic module performance and environmental factor.
(1) described step refers to: for climatic characteristics such as damp and hot, xeothermic, sub-damp and hot, plateau and colds, typical weather conditions are set up to throw sample place, specify the typical climate type that photovoltaic module throws examination, select open smooth simultaneously, surrounding shadow-free blocks, air without serious dust pollution region as throwing sample place.
As one embodiment of the present invention, described step (2) in, initial performance test comprises visual examination, maximum power test, insulation property, wet leakage current and assembly EL and tests.
As one embodiment of the present invention, described step (5) in, meteorologic parameter acquisition system comprises environment temperature sensor, humidity sensor, different-waveband (ultraviolet, visible, near-infrared) radiometer, wind speed wind direction sensor and rain sensor.
As one embodiment of the present invention, described step (6) in, adopt the surface temperature of temperature sensor Real-Time Monitoring photovoltaic module to be tested.
The present invention described step (3) in, the setting angle of photovoltaic module to be tested is identical with solar irradiation angle to obtain maximum solar irradiation.
The present invention described step (4) in, the resistance of load resistance is 1.5 × V
m/ I
m, to guarantee that photovoltaic module is operated near maximum power point.
The present invention described step (6) in, 4 monitoring locations for set temperature transducer are respectively chosen on the positive and negative surface of photovoltaic module to be tested, temperature sensor to be fixed on monitoring location and to make temperature sensor not block cell piece, avoiding producing shadow effect.
Compared with prior art, the present invention has following significant effect:
(1) the present invention is based on photovoltaic module surface temperature, irradiance, ambient temperature, relative humidity, environment round the clock and the actual outdoor exposure result of the various environmental factors such as seasonal periodicity combination, examination factor more comprehensively, has higher accuracy.
(2) the present invention has considered envirment factor, and envirment factor has the cycle toward renaturation and regional representativeness, avoids existing test method short term outdoor and to be exposed to the sun the deficiency of stress parameter.
Photovoltaic module of the present invention adopt solar tracking system or setting angle identical with residing angle of latitude, can guarantee that it receives maximum solar irradiation.
(4) outdoor exposure test of the present invention is carried out in running load situation, makes photovoltaic module closer to real working condition.
(5) the present invention is in test exposure period, and meteorological condition monitoring contributes to setting up that envirment factor and assembly property change associates and make improvements photovoltaic products.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is FB(flow block) of the present invention;
Fig. 2 is the temperature sensor mounted monitoring location schematic diagram of the present invention.
Embodiment
As shown in Figure 1, be a kind of photovoltaic module outdoor exposure test of the present invention method, specifically comprise the following steps:
(1) determine test area according to climate type, the region that test area selects representative shadow-free to block is as throwing sample place, specifically: for climatic characteristics such as damp and hot, xeothermic, sub-damp and hot, plateau and colds, typical weather conditions are set up to throw sample place, specify the typical climate type that photovoltaic module throws examination, select open smooth, surrounding shadow-free blocks simultaneously, air without serious dust pollution region as throwing sample place.
For ensureing the stability of throwing in place and environment, different weather burthen can be chosen and meet the open field test place of national standard as throwing sample place.
(2) treat test light photovoltaic assembly and carry out initial performance test, comprise visual examination, maximum power test, insulation property, wet leakage current and assembly EL and test, record initial performance test data;
(3) photovoltaic module to be tested is arranged on and throws sample place, specifically photovoltaic module to be tested is arranged on solar tracking system support, or photovoltaic module to be tested is arranged on using location angle of latitude as mounted angle on fixing specimen mounting, to obtain maximum solar irradiation.
(4) photovoltaic module to be tested is connected load resistance to simulate the running environment of photovoltaic module to be tested.For ensureing that photovoltaic module is operated near maximum power point, select load resistance simulated light photovoltaic assembly running environment according to formula R=1.5 × Vm/Im, resistor power value must be greater than photovoltaic module maximum power.For avoiding load resistance to accelerate the heat ageing of photovoltaic module, should be noted that load resistance installation site, to make it photovoltaic module not made significant difference and being advisable.
(5) near photovoltaic module to be tested, build meteorologic parameter acquisition system, this meteorologic parameter acquisition system comprises temperature sensor, humidity sensor, different-waveband (ultraviolet, visible, near-infrared) radiometer, wind speed wind direction sensor and rain sensor.Wherein, radiometer is identical with the mounting plane of photovoltaic module to be tested, the residing height of environment temperature sensor, humidity sensor, wind speed wind direction sensor is close with photovoltaic module to be tested, it will be avoided to treat test light photovoltaic assembly causes shade to block simultaneously, truly to reflect the environmental condition residing for photovoltaic module to be tested.
(6) adopt the surface temperature of temperature sensor Real-Time Monitoring photovoltaic module to be tested, in view of the geometrical symmetry of photovoltaic module shape to be tested, at photovoltaic module to be tested just, anti-surface is respectively chosen 4 points and is carried out temperature monitoring as monitoring location, monitoring location as shown in Figure 2, front surface 4 monitoring locations of photovoltaic module to be tested are: first monitoring location 1 is positioned on terminal box front, second monitoring location 3 is positioned at the upper right corner of photovoltaic module to be tested, 3rd monitoring location 4 is positioned in the middle part of photovoltaic module to be tested, 4th monitoring location 5 is positioned at the lower right corner of photovoltaic module to be tested, anti-surperficial 4 monitoring locations of photovoltaic module to be tested are: first monitoring location 2 is positioned on terminal box backboard, its excess-three monitoring location be in photovoltaic module to be tested anti-surface and with the monitoring location 3 in photovoltaic module front to be tested, on 4 and 5 relative positions.Adopt insulation and thermal insulation adhesive tape to be fixed on monitoring location by temperature sensor, ensure not cause cell piece time fixing to block, avoid producing shadow effect.
(7) regularly performance test is carried out to photovoltaic module, record performance test data, this performance test data and initial performance test data are compared to analyze Service Environment condition.
Embodiments of the present invention are not limited thereto; according to foregoing of the present invention; according to ordinary technical knowledge and the customary means of this area; do not departing under the present invention's above-mentioned basic fundamental thought prerequisite; the present invention can also make the amendment of other various ways, replacement or change, all drops within rights protection scope of the present invention.
Claims (7)
1. a photovoltaic module outdoor exposure test method, is characterized in that specifically comprising the following steps:
(1) determine test area according to climate type, the region that test area selects shadow-free to block is as throwing sample place;
(2) treat test light photovoltaic assembly and carry out initial performance test, record initial performance test data;
(3) photovoltaic module to be tested is arranged on and throws sample place and make photovoltaic module to be tested receive maximum solar irradiation;
(4) photovoltaic module to be tested is connected load resistance to simulate the running environment of photovoltaic module to be tested;
(5) near photovoltaic module to be tested, build meteorologic parameter acquisition system;
(6) the surface temperature of Real-Time Monitoring photovoltaic module to be tested;
(7) regularly treat test light photovoltaic assembly and carry out performance test, record performance test data, this performance test data and initial performance test data are compared to analyze Service Environment condition.
2. photovoltaic module outdoor exposure test method according to claim 1, is characterized in that: described step (2) in, initial performance test comprises visual examination, maximum power test, insulation property, wet leakage current and assembly EL and tests.
3. photovoltaic module outdoor exposure test method according to claim 2, it is characterized in that: described step (5) in, meteorologic parameter acquisition system comprises environment temperature sensor, humidity sensor, different-waveband radiometer, wind speed wind direction sensor and rain sensor.
4. photovoltaic module outdoor exposure test method according to claim 3, is characterized in that: described step (6) in, adopt the surface temperature of temperature sensor Real-Time Monitoring photovoltaic module to be tested.
5. photovoltaic module outdoor exposure test method according to claim 4, is characterized in that: described step (3) in, the setting angle of photovoltaic module to be tested is identical with solar irradiation angle to obtain maximum solar irradiation.
6. photovoltaic module outdoor exposure test method according to claim 5, is characterized in that: described step (4) in, the resistance of load resistance is 1.5 × V
m/ I
m.
7. photovoltaic module outdoor exposure test method according to claim 6, it is characterized in that: described step (6) in, respectively choose 4 monitoring locations for set temperature transducer on the positive and negative surface of photovoltaic module to be tested, temperature sensor to be fixed on monitoring location and to make temperature sensor not block cell piece.
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| CN201410844202.4A CN104579168B (en) | 2014-12-30 | 2014-12-30 | A kind of photovoltaic module outdoor exposure test method |
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Cited By (6)
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| CN104935250A (en) * | 2015-06-15 | 2015-09-23 | 内蒙古山路光伏应用技术研究有限公司 | Cleaning simulation method for photovoltaic module |
| CN107192477A (en) * | 2017-06-19 | 2017-09-22 | 苏州申奇电子科技有限公司 | A kind of photovoltaic module laminating temperature tester and its temperature control system |
| CN109148332A (en) * | 2018-07-18 | 2019-01-04 | 凯盛光伏材料有限公司 | One kind is for testing photovoltaic module reverse current overload measurement platform |
| CN111313832A (en) * | 2018-12-11 | 2020-06-19 | 米亚索能光伏科技有限公司 | Photovoltaic module tolerance performance test method |
| CN114624172A (en) * | 2022-03-30 | 2022-06-14 | 无锡市检验检测认证研究院 | Testing method of photovoltaic material-based outdoor demonstration accelerated aging testing system |
| CN116800201A (en) * | 2022-12-07 | 2023-09-22 | 武汉涛初科技有限公司 | Solar power generation operation monitoring method, device and storage medium |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104935250A (en) * | 2015-06-15 | 2015-09-23 | 内蒙古山路光伏应用技术研究有限公司 | Cleaning simulation method for photovoltaic module |
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| CN107192477A (en) * | 2017-06-19 | 2017-09-22 | 苏州申奇电子科技有限公司 | A kind of photovoltaic module laminating temperature tester and its temperature control system |
| CN107192477B (en) * | 2017-06-19 | 2024-02-27 | 苏州申奇电子科技有限公司 | Photovoltaic module lamination temperature tester and temperature control system thereof |
| CN109148332A (en) * | 2018-07-18 | 2019-01-04 | 凯盛光伏材料有限公司 | One kind is for testing photovoltaic module reverse current overload measurement platform |
| CN109148332B (en) * | 2018-07-18 | 2024-03-01 | 凯盛光伏材料有限公司 | Reverse current overload test bench for testing photovoltaic module |
| CN111313832A (en) * | 2018-12-11 | 2020-06-19 | 米亚索能光伏科技有限公司 | Photovoltaic module tolerance performance test method |
| CN114624172A (en) * | 2022-03-30 | 2022-06-14 | 无锡市检验检测认证研究院 | Testing method of photovoltaic material-based outdoor demonstration accelerated aging testing system |
| CN114624172B (en) * | 2022-03-30 | 2024-01-05 | 无锡市检验检测认证研究院 | Test method based on photovoltaic material outdoor demonstration accelerated aging test system |
| CN116800201A (en) * | 2022-12-07 | 2023-09-22 | 武汉涛初科技有限公司 | Solar power generation operation monitoring method, device and storage medium |
| CN116800201B (en) * | 2022-12-07 | 2024-04-26 | 汇耀品尚能源科技(嘉兴)有限公司 | Solar power generation operation monitoring method, device and storage medium |
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