CN102565658A - Test method of PID (Potential-Induced Degradation) of solar cell module - Google Patents
Test method of PID (Potential-Induced Degradation) of solar cell module Download PDFInfo
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- CN102565658A CN102565658A CN2011104561482A CN201110456148A CN102565658A CN 102565658 A CN102565658 A CN 102565658A CN 2011104561482 A CN2011104561482 A CN 2011104561482A CN 201110456148 A CN201110456148 A CN 201110456148A CN 102565658 A CN102565658 A CN 102565658A
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- 238000010998 test method Methods 0.000 title abstract description 5
- 230000015556 catabolic process Effects 0.000 title abstract description 4
- 238000006731 degradation reaction Methods 0.000 title abstract description 4
- 238000012360 testing method Methods 0.000 claims abstract description 65
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000002474 experimental method Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- 230000007547 defect Effects 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 7
- 238000011056 performance test Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000005030 aluminium foil Substances 0.000 claims description 4
- 239000011889 copper foil Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- 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
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a test method of PID (Potential-Induced Degradation) of a solar cell module. The test method comprises the following steps of: (1) testing and recording initial data of a tested solar cell module; (2) installing the tested solar cell module in a high-temperature and low-temperature experimental environment box and carrying out insulated treatment between the tested solar cell module and the high-temperature and low-temperature experimental environment box; (3) polarly connecting the anode and the cathode of the tested solar cell module, which are subjected to short-circuited connection, with the cathode of high-voltage loading equipment, and connecting a frame of the solar cell module with the anode of the high-voltage loading equipment; (4) starting the high-temperature and low-temperature experimental environment box, starting the high-voltage loading equipment and debugging the high-voltage loading equipment to the output voltage value of 600-1000V, and simultaneously starting a current monitor for carrying out electric leakage monitoring; (6) testing and recording final data of the tested solar cell module; (7) comparing the initial data with the final data of the tested solar cell module and evaluating power degradation; and (8) finishing the test.
Description
Technical field
The present invention relates to application of solar, the method for testing of particularly a kind of solar module PID.
Background technology
Solar module is to be welded into battery strings through welding successively by several solar cells; And connect into the battery component semi-manufacture at the head and the tail of battery strings with the band welding of confluxing and be arranged in the encapsulating structure; Encapsulating structure comprises tempered glass, plastic foil (EVA) and PVF composite membrane (TPT) from top to bottom successively, constitutes through the vacuum layer encapsulation again.
Hoffman in 1978 and Ross have proposed high voltage stress (High Voltage Stress first; Write a Chinese character in simplified form HVS) can the long-time stability of solar module be exerted an influence, promptly electromotive force causes performance to reduce (Potential-induced Degradation writes a Chinese character in simplified form PID); Up to 2006; Along with the continuous development of science and technology, people have recognized that under high-pressure situations the electric current leakage brings more power loss can for the solar module system.
Though; Pair regulation that solar module PID tests is not arranged in the identifying procedure of IEC61215 international standard; But; In the application process of solar module system, taken place many because high pressure causes the case of solar module power attenuation in recent years, it has had a strong impact on solar module being widely used and promoting in each application.Therefore, test solar module PID is real is necessary.
Yet, the method that solar module PID is tested does not also appear at present at home as yet.
Summary of the invention
The object of the present invention is to provide a kind of safe and reliable, reasonable method of testing of solar module PID accurately of evaluation.
The object of the invention is realized through following technical measures: the method for testing of a kind of solar module PID is characterized in that may further comprise the steps:
(1) tests and writes down the primary data of tested solar module;
(2) be installed in tested solar module in the high low temperature experiment environment box and do insulation between the two and handle;
(3) with being connected with the negative pole of high pressure loading equipemtn behind the tested solar module both positive and negative polarity short circuit, the frame of solar module is connected with the positive pole of high pressure loading equipemtn;
(4) start high low temperature experiment environment box, opening the high pressure loading equipemtn and debugging its output voltage values is 600～1000V, the firing current monitor monitoring of leaking electricity simultaneously;
(5) continue to close high pressure loading equipemtn and high low temperature experiment environment box behind the setting-up time, the temperature of treating tested solar module drops to after the room temperature its taking-up;
(6) test and write down the final data of tested solar module;
(7) primary data and the final data of the tested solar module of contrast are estimated power attenuation;
(8) test finishes.
High low temperature experiment environment box of the present invention can be simulated complicated external environmental condition such as different temperatures, humidity; Also can apply long-time continuous 1000V direct current to solar module and load by the high pressure loading equipemtn, so the accurate analog solar battery component condition that in the real world applications process, influenced by high voltage stress of the present invention.
As one embodiment of the present invention, said primary data comprises unit for electrical property parameters, EL defect parameters and wet electric leakage parameter, and said parameter is obtained by electric performance test appearance, EL defect test appearance and wet leakage tests appearance test respectively.
As preferred implementation of the present invention, said electric performance test appearance has 3A level lamp source, the photographic means that said EL defect test appearance has 1,200 ten thousand pixels.
As one embodiment of the present invention, in said step (2), insulation processing is before being installed in tested solar module in the testing jig, on the frame of tested solar module, installs insulating sheath additional.
In order to obtain electromotive force homogeneity good on the tested solar module, as further improvement of the present invention, carrying out said step (2) before, adopt conductive material to be coated on the frame of solar module.
As the mode that the present invention recommends, the resistance value of said conductive material can adopt Copper Foil, aluminium foil etc. less than 1 ohm.
The present invention also has following embodiment, and in said step (5), setting-up time is 20 hours, and behind the completing steps (6), repeating step (5), (6) are 100 hours until the setting-up time summation.
As another embodiment of the invention, in said step (5), setting-up time is 100 hours.
Temperature in the high low temperature experiment environment box according to the invention is 0～90 ℃, and humidity is 0～97%.
Compared with prior art, tool of the present invention is that following significant effect is arranged:
(1) high low temperature experiment environment box of the present invention can be simulated complicated external environmental condition such as different temperatures, humidity; Also can apply long-time continuous 1000V direct current to solar module and load by the high pressure loading equipemtn, so the accurate analog solar battery component condition that in the real world applications process, influenced by high voltage stress of the present invention.
(2) the present invention is through several groups of unit for electrical property parameters of test, EL defect parameters and wet electric leakage parameter, and relatively and carry out the concrete condition that solar module PID is judged in the power attenuation evaluation, the accuracy of test solar module PID is high.
(3) doing insulation between solar module of the present invention and the high low temperature experiment environment box and handle, specifically is on the frame of solar module, to install insulating sheath additional, has ensured the safe reliability of test.
(4) Copper Foil or the aluminium foil of coating conducting higher (＜1 Ω) on the frame of solar module can obtain electromotive force homogeneity good on the tested solar module, thereby have guaranteed the accuracy of test.
(5) the electrical property numerical value, EL defect image before and after the test, wet electric leakage numerical value are compared, but the attenuation that visual pattern ground obtains testing front and back solar module PID.
Embodiment
Embodiment 1
The present invention is the method for testing of a kind of solar module PID, may further comprise the steps:
(1) tests and writes down the primary data of tested solar module; Primary data comprises unit for electrical property parameters, EL defect parameters and wet electric leakage parameter, and parameter is obtained by electric performance test appearance, EL defect test appearance and wet leakage tests appearance test respectively.
Concrete steps are:
(1) a. uses the unit for electrical property parameters of electric performance test appearance (PASAN) the test solar module with 3A level lamp source: open the opertaing device power supply; The position suitable of adjustment solar module (hereinafter to be referred as assembly) fixed mount and assembly; Find the target corresponding with assembly, the assembly front is towards light source and insert on fixed mount.With suitable adapter the PASAN both positive and negative polarity is docked with the assembly both positive and negative polarity.In being pushed into assembly between the test section, reach 25 ± 1 ℃ in environment temperature, under humidity 75% condition, open PASAN electric capacity charging equipment power supply, the calibration target is also tested.
(1) b. uses the EL defect parameters of the photographic means EL defect test appearance test solar module with 1,200 ten thousand pixels: the red line (positive pole) of Spire tester is connected on first bus-bar in the assembly line outlet left side; Another root is put on first bus-bar in assembly line outlet the right; Press shift knob, the tester loam cake that closes, judge not have through test pattern latently split, abnormal conditions such as fragment, black surround, evil mind; If do not have, be qualified assembly.
(1) c. uses the wet electric leakage parameter of wet leakage tests appearance test solar module: regulating the tank temperature is 19～25 ℃, and the test electrical conductivity of water is greater than 286 μ scm
-1Assembly is put on the assembly locating piece of wet leakage tests appearance, the water surface exceeds assembly locating piece 0.5～1cm, is paved with water at the assembly back side.Be connected with the exit of assembly with suitable exit adapter, and the connector lug that connects is immersed in the water, the positive pole of insulation tester is received in the short circuit of the connector lug other end, and the negative pole of insulation tester immerses in the water.Before the test, do not have the position of immersion to spray water, assembly imposed 1000V voltage, continue 120s with watering can butted line box, finish the back green light bright be qualified.
(2) after above test finishes, tested solar module is installed in the testing jig in the high low temperature experiment environment box of the formula of stepping into and does insulation between the two and handle; Before doing the insulation processing, adopt conductive material to be coated on the frame of solar module.The resistance value of conductive material adopts Copper Foil or aluminium foil etc. less than 1 ohm.Insulation processing is before being installed in tested solar module in the testing jig, on the frame of tested solar module, installs insulating sheath additional; Connect the current monitoring appearance, and temperature sensor is connected on the tested solar module back side, so that monitor temperature;
(3) with being connected with the negative pole of high pressure loading equipemtn through the wire guide on the high low temperature experiment environment box tank wall behind the tested solar module both positive and negative polarity short circuit, the frame of solar module is connected with the positive pole of high pressure loading equipemtn;
(4) start high low temperature experiment environment box, 25 ℃ of temperature and humidity 25% back operation are set; Opening the high pressure loading equipemtn and debugging its output voltage values is 600V, the firing current monitor monitoring of leaking electricity simultaneously;
(5) continued setting-up time 20 hours, close high pressure loading equipemtn and high low temperature experiment environment box, it is with its taking-up after 25 ℃ that the temperature of treating tested solar module drops to room temperature;
(6) test and write down unit for electrical property parameters, the EL defect parameters of tested solar module and the electric leakage parameter that wets;
Behind the completing steps (6), repeating step (5), (6) are 100 hours until the setting-up time summation, write down 5 groups of data altogether as final data;
(7) primary data and the final data of the tested solar module of contrast, promptly the electrical property numerical value before and after the test, EL defect image, wet electric leakage numerical value are compared, the attenuation of solar module PID before and after obtaining testing;
(8) test finishes.
Embodiment 2
Present embodiment is that with the difference of embodiment 1 step (4)～(8) are different:
(4) start high low temperature experiment environment box, 60 ℃ of temperature and humidity 60% back operation are set; Opening the high pressure loading equipemtn and debugging its output voltage values is 800V, the firing current monitor monitoring of leaking electricity simultaneously;
(5) continued setting-up time 100 hours, close high pressure loading equipemtn and high low temperature experiment environment box, after the temperature of treating tested solar module drops to room temperature and is 25 ℃, it is taken out in high low temperature experiment environment box;
(6) unit for electrical property parameters, EL defect parameters and the wet electric leakage parameter of testing and write down tested solar module are as final data;
(7) primary data and the final data of the tested solar module of contrast, promptly the electrical property numerical value before and after the test, EL defect image, wet electric leakage numerical value are compared; The attenuation of solar module PID before and after obtaining testing;
(8) test finishes.
Embodiment 3
Present embodiment is that with the difference of embodiment 1 temperature, humidity and the high pressure loading equipemtn output voltage values of high low temperature experiment environment box in the step (4) are different: in the present embodiment, high pressure loading equipemtn output voltage values is 1000V; Temperature in the high low temperature experiment environment box is 60 ℃, humidity 60%.
The used instrument and equipment of the present invention is existing equipment, wherein, in order to realize the magnitude of voltage that is carried on the solar module of the presently claimed invention, the high pressure loading equipemtn has been done correspondingly improvement.
Embodiment of the present invention is not limited thereto; According to foregoing of the present invention; Ordinary skill knowledge and customary means according to this area; Do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite, the present invention can also make modification, replacement or the change of other various ways, all drops within the rights protection scope of the present invention.
Claims (10)
1. the method for testing of a solar module PID is characterized in that may further comprise the steps:
(1) tests and writes down the primary data of tested solar module;
(2) be installed in tested solar module in the high low temperature experiment environment box and do insulation between the two and handle;
(3) with being connected with the negative pole of high pressure loading equipemtn behind the tested solar module both positive and negative polarity short circuit, the frame of solar module is connected with the positive pole of high pressure loading equipemtn;
(4) start high low temperature experiment environment box, opening the high pressure loading equipemtn and debugging its output voltage values is 600～1000V, the firing current monitor monitoring of leaking electricity simultaneously;
(5) continue setting-up time, close high pressure loading equipemtn and high low temperature experiment environment box, the temperature of treating tested solar module drops to after the room temperature its taking-up;
(6) test and write down the final data of tested solar module;
(7) primary data and the final data of the tested solar module of contrast are estimated power attenuation;
(8) test finishes.
2. the method for testing of solar module PID according to claim 1; It is characterized in that: said primary data comprises unit for electrical property parameters, EL defect parameters and wet electric leakage parameter, and said parameter is obtained by electric performance test appearance, EL defect test appearance and wet leakage tests appearance test respectively.
3. the method for testing of solar module PID according to claim 2 is characterized in that: said electric performance test appearance has 3A level lamp source, the photographic means that said EL defect test appearance has 1,200 ten thousand pixels.
4. the method for testing of solar module PID according to claim 3; It is characterized in that: in said step (2); Insulation processing be installed in tested solar module in the testing jig before, on the frame of tested solar module, install insulating sheath additional.
5. the method for testing of solar module PID according to claim 4 is characterized in that: carrying out said step (2) before, adopting conductive material to be coated on the frame of solar module.
6. the method for testing of solar module PID according to claim 5 is characterized in that: the resistance value of said conductive material is less than 1 ohm.
7. the method for testing of solar module PID according to claim 6 is characterized in that: said conductive material adopts Copper Foil or aluminium foil.
8. the method for testing of solar module PID according to claim 7 is characterized in that: in said step (5), setting-up time is 20 hours, and behind the completing steps (6), repeating step (5), (6) are 100 hours until the setting-up time summation.
9. the method for testing of solar module PID according to claim 7 is characterized in that: in said step (5), setting-up time is 100 hours.
10. according to Claim 8 or the method for testing of 9 described solar module PID, it is characterized in that: the temperature in the said high low temperature experiment environment box is 0～90 ℃, and humidity is 0～97%.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103018648A (en) * | 2012-09-27 | 2013-04-03 | 奥特斯维能源（太仓）有限公司 | Accelerated PID (Potential Induced Degradation) testing method |
| CN103076586A (en) * | 2012-12-29 | 2013-05-01 | 常州天合光能有限公司 | Method for improving standard sheet calibrating and monitoring of solar simulator |
| CN103424680A (en) * | 2013-08-29 | 2013-12-04 | 中利腾晖光伏科技有限公司 | Testing device and testing method of solar cell assembly potential induction attenuation |
| CN103454567A (en) * | 2013-08-29 | 2013-12-18 | 上海晶澳太阳能科技有限公司 | PV component PID horizontal test method and system with set water film thickness |
| BE1020776A5 (en) * | 2013-05-27 | 2014-04-01 | Futech | METHOD AND DEVICE FOR DETECTING, REGENERATING AND / OR PREVENTING DEFECTS IN A SOLAR PANEL INSTALLATION. |
| CN103795341A (en) * | 2014-03-03 | 2014-05-14 | 江苏万丰光伏有限公司 | Method for testing PID-attenuation-proof performance of photovoltaic assembly |
| CN103904993A (en) * | 2014-03-13 | 2014-07-02 | 苏州阿特斯阳光电力科技有限公司 | PID test method for solar cell |
| CN104065339A (en) * | 2014-07-15 | 2014-09-24 | 江苏顺风光电科技有限公司 | Experiment board of solar battery assembly PID and testing method thereof |
| CN104345276A (en) * | 2013-08-01 | 2015-02-11 | 普德光伏技术（苏州）有限公司 | Method for testing attenuation of photovoltaic assembly |
| KR101516344B1 (en) * | 2014-02-20 | 2015-05-04 | (주)온테스트 | Apparatus of the performance verification for renewable energy module by a unit module and method thereof |
| CN105790710A (en) * | 2014-12-23 | 2016-07-20 | 国家电网公司 | Potential induced degradation testing method for photovoltaic modules |
| CN106208964A (en) * | 2016-09-22 | 2016-12-07 | 尚德太阳能电力有限公司 | Analog solar assembly acceleration PID performance test methods under actual application environment |
| CN108896915A (en) * | 2018-05-14 | 2018-11-27 | 欧贝黎新能源科技股份有限公司 | A kind of the potential induction attenuation test device and test method of silicon solar cell |
| CN111900930A (en) * | 2020-06-24 | 2020-11-06 | 西安交通大学 | PID (proportion integration differentiation) detection method by utilizing reverse saturation current and leakage current density of photovoltaic module |
| CN112054766A (en) * | 2020-08-20 | 2020-12-08 | 国家电投集团西安太阳能电力有限公司 | Method for testing and evaluating PID (proportion integration differentiation) performance of battery pack |
| CN112928988A (en) * | 2021-03-02 | 2021-06-08 | 中国科学院电工研究所 | Accelerated aging test method and system for photovoltaic module |
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| CN103018648A (en) * | 2012-09-27 | 2013-04-03 | 奥特斯维能源（太仓）有限公司 | Accelerated PID (Potential Induced Degradation) testing method |
| CN103076586A (en) * | 2012-12-29 | 2013-05-01 | 常州天合光能有限公司 | Method for improving standard sheet calibrating and monitoring of solar simulator |
| CN103076586B (en) * | 2012-12-29 | 2015-04-29 | 常州天合光能有限公司 | Method for improving standard sheet calibrating and monitoring of solar simulator |
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| CN104345276A (en) * | 2013-08-01 | 2015-02-11 | 普德光伏技术（苏州）有限公司 | Method for testing attenuation of photovoltaic assembly |
| CN103454567B (en) * | 2013-08-29 | 2015-12-09 | 上海晶澳太阳能科技有限公司 | The PV assembly PID horizontal checkout method of setting water film thickness and test macro |
| CN103424680A (en) * | 2013-08-29 | 2013-12-04 | 中利腾晖光伏科技有限公司 | Testing device and testing method of solar cell assembly potential induction attenuation |
| CN103454567A (en) * | 2013-08-29 | 2013-12-18 | 上海晶澳太阳能科技有限公司 | PV component PID horizontal test method and system with set water film thickness |
| KR101516344B1 (en) * | 2014-02-20 | 2015-05-04 | (주)온테스트 | Apparatus of the performance verification for renewable energy module by a unit module and method thereof |
| CN103795341A (en) * | 2014-03-03 | 2014-05-14 | 江苏万丰光伏有限公司 | Method for testing PID-attenuation-proof performance of photovoltaic assembly |
| CN103904993A (en) * | 2014-03-13 | 2014-07-02 | 苏州阿特斯阳光电力科技有限公司 | PID test method for solar cell |
| CN104065339A (en) * | 2014-07-15 | 2014-09-24 | 江苏顺风光电科技有限公司 | Experiment board of solar battery assembly PID and testing method thereof |
| CN105790710A (en) * | 2014-12-23 | 2016-07-20 | 国家电网公司 | Potential induced degradation testing method for photovoltaic modules |
| CN106208964A (en) * | 2016-09-22 | 2016-12-07 | 尚德太阳能电力有限公司 | Analog solar assembly acceleration PID performance test methods under actual application environment |
| CN108896915A (en) * | 2018-05-14 | 2018-11-27 | 欧贝黎新能源科技股份有限公司 | A kind of the potential induction attenuation test device and test method of silicon solar cell |
| CN111900930A (en) * | 2020-06-24 | 2020-11-06 | 西安交通大学 | PID (proportion integration differentiation) detection method by utilizing reverse saturation current and leakage current density of photovoltaic module |
| CN112054766A (en) * | 2020-08-20 | 2020-12-08 | 国家电投集团西安太阳能电力有限公司 | Method for testing and evaluating PID (proportion integration differentiation) performance of battery pack |
| CN112928988A (en) * | 2021-03-02 | 2021-06-08 | 中国科学院电工研究所 | Accelerated aging test method and system for photovoltaic module |
| CN112928988B (en) * | 2021-03-02 | 2022-07-19 | 中国科学院电工研究所 | Accelerated aging test method and system for photovoltaic module |
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