CN106353584A - Method for testing attenuation value of photovoltaic module - Google Patents
Method for testing attenuation value of photovoltaic module Download PDFInfo
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- CN106353584A CN106353584A CN201610790938.7A CN201610790938A CN106353584A CN 106353584 A CN106353584 A CN 106353584A CN 201610790938 A CN201610790938 A CN 201610790938A CN 106353584 A CN106353584 A CN 106353584A
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- test
- power
- under test
- module under
- assembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
Abstract
The invention relates to a method for testing the attenuation value of a photovoltaic module. The method comprises steps as follows: a, a standard assembly is placed nearby a tested assembly, and the orientation and the inclined angle of the standard assembly are kept consistent with those of the tested assembly; b, the standard assembly and the tested assembly in the step 1 are tested simultaneously by a portable power tester; c, after the test is completed, actual power of the standard assembly and actual power of the tested assembly during outdoor test are obtained respectively, then, corresponding conversion is performed, and annual attenuation data of the tested assembly are obtained. The method has the benefits as follows: compared with the prior art, the method doesn't need to dismount mounted assemblies when commissioning assemblies of a power station are detected to be attenuated, the test is relatively convenient, besides, test power errors caused by temperatures, irradiance and other environment factors are eliminated in the test process, and the attenuation value of the commissioning assemblies of the power station is more accurately obtained.
Description
Technical field
The present invention relates to a kind of method of test photovoltaic module pad value.
Background technology
Being related at present the power station assembly attenuation test that puts into operation in industry has two methods:
1st, adopt vehicular component power tester: MUT module under test needs field stripping to be detected, and upon completion of the assays
Reinstall, testing cost is higher, and module testing process is cumbersome.
2nd, adopt single channel portable power tester: transient irradiation during this kind of portable power tester acquisition component test
Degree, temperature, electrical performance data, are then changed by stc condition, computation module actual power.This detection method is to wink during test
When irradiance require higher, and stc condition conversion after assembly actual power deviation larger, deviation is up to 5% about.
Content of the invention
The technical problem to be solved in the present invention is: provides a kind of method of test photovoltaic module pad value, reduces test difficult
Degree, improves test accuracy.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of test photovoltaic module pad value,
There is following steps: a, standard package is positioned near MUT module under test, the direction of standard package, inclination angle and MUT module under test keep
Unanimously；B, adopt portable power tester, under identical environmental condition, the standard package in testing procedure 1 and tested simultaneously
Assembly；After the completion of c, test, actual power when showing that standard package and MUT module under test are tested out of doors respectively, then carry out phase
The conversion answered draws the year attenuation data of MUT module under test, and conversion method is as follows: standard package theoretical power (horse-power) is defined as pm1, tested
The assembly measured power that dispatches from the factory is defined as pm2, standard package outdoor test actual power pm3, the actual work(of MUT module under test outdoor test
Rate pm4,
After MUT module under test puts into operation,
For improving test accuracy further, portable power tester adopts dual pathways portable power tester.
The invention has the beneficial effects as follows: compare prior art, and this method of testing is when assembly decay is put into operation in detection power station
Mounted assembly need not be dismantled, test is more convenient, eliminate in test process simultaneously because the environment such as temperature, irradiance because
The measured power error that element brings, thus more accurately show to put into operation the pad value of assembly in power station.
Specific embodiment
A kind of method of test photovoltaic module pad value, has following steps:
A, standard package is positioned near MUT module under test, the direction of standard package, inclination angle and MUT module under test are consistent；
B, adopt dual pathways portable power tester, under identical environmental condition, the criterion group in testing procedure 1 simultaneously
Part and MUT module under test, the test process of portable power tester can complete it can be ensured that two block assemblies are carried out simultaneously at 0.5 second about
During test, temperature, irradiance are consistent；
After the completion of c, test, actual power when showing that standard package and MUT module under test are tested out of doors respectively, and laggard
The corresponding conversion of row draws the year attenuation data of MUT module under test, and conversion method is as follows:
Standard package theoretical power (horse-power) is defined as pm1,
The MUT module under test measured power that dispatches from the factory is defined as pm2,
Standard package outdoor test actual power pm3,
MUT module under test outdoor test actual power pm4,
After MUT module under test puts into operation,
Assume that the standard package theoretical power (horse-power) pm1 at certain power station scene is 255w, the MUT module under test being installed on support dispatches from the factory
Measured power pm2 is 258w.
Using dual pathways portable power tester simultaneous when test two block assemblies, standard package outdoor test actual power pm3
For 178w, MUT module under test outdoor test actual power pm4 is 174w.The MUT module under test being installed on support then can be drawn
Claims (2)
1. a kind of method of test photovoltaic module pad value, is characterized in that: have following steps:
A, standard package is positioned near MUT module under test, the direction of standard package, inclination angle and MUT module under test are consistent；
B, adopt portable power tester, under identical environmental condition, the standard package in testing procedure 1 and tested group simultaneously
Part；
After the completion of c, test, actual power when showing that standard package and MUT module under test are tested out of doors respectively, then carry out phase
The conversion answered draws the year attenuation data of MUT module under test, and conversion method is as follows:
Standard package theoretical power (horse-power) is defined as pm1,
The MUT module under test measured power that dispatches from the factory is defined as pm2,
Standard package outdoor test actual power pm3,
MUT module under test outdoor test actual power pm4,
After MUT module under test puts into operation,
2. the method for test photovoltaic module pad value according to claim 1, is characterized in that: described portable power test
Instrument adopts dual pathways portable power tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790938.7A CN106353584A (en) | 2016-08-31 | 2016-08-31 | Method for testing attenuation value of photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790938.7A CN106353584A (en) | 2016-08-31 | 2016-08-31 | Method for testing attenuation value of photovoltaic module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106353584A true CN106353584A (en) | 2017-01-25 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610790938.7A Pending CN106353584A (en) | 2016-08-31 | 2016-08-31 | Method for testing attenuation value of photovoltaic module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226021A (en) * | 2017-12-26 | 2018-06-29 | 米亚索能光伏科技有限公司 | The weatherability detection method and system of a kind of photovoltaic module |
| CN110102876A (en) * | 2019-04-30 | 2019-08-09 | 旻投电力发展有限公司 | A kind of cryogenic assembly recovery technique based on laser |
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| CN101311742A (en) * | 2007-05-22 | 2008-11-26 | 中芯国际集成电路制造(上海)有限公司 | Method for testing solar battery assembly efficiency |
| CN101441239A (en) * | 2008-12-09 | 2009-05-27 | 张家港三得利新能源科技有限公司 | Verification method of parallel networking type photovoltaic power station power generation performance |
| CN102854447A (en) * | 2012-09-07 | 2013-01-02 | 倪峰 | Portable photovoltaic subassembly power testing instrument and testing method thereof |
| CN103063966A (en) * | 2013-01-08 | 2013-04-24 | 广州中晶新能源工程有限公司 | Photovoltaic power generation test system |
| CN104574221A (en) * | 2015-01-30 | 2015-04-29 | 华北电力大学（保定） | Method for identifying running states of photovoltaic power station on basis of electric quantity loss feature parameters |
| DE102014003814A1 (en) * | 2014-03-11 | 2015-09-17 | Falk Kohlhase | Method and arrangement for testing photovoltaically operating solar modules |
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2016
- 2016-08-31 CN CN201610790938.7A patent/CN106353584A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311742A (en) * | 2007-05-22 | 2008-11-26 | 中芯国际集成电路制造(上海)有限公司 | Method for testing solar battery assembly efficiency |
| CN101441239A (en) * | 2008-12-09 | 2009-05-27 | 张家港三得利新能源科技有限公司 | Verification method of parallel networking type photovoltaic power station power generation performance |
| CN102854447A (en) * | 2012-09-07 | 2013-01-02 | 倪峰 | Portable photovoltaic subassembly power testing instrument and testing method thereof |
| CN103063966A (en) * | 2013-01-08 | 2013-04-24 | 广州中晶新能源工程有限公司 | Photovoltaic power generation test system |
| DE102014003814A1 (en) * | 2014-03-11 | 2015-09-17 | Falk Kohlhase | Method and arrangement for testing photovoltaically operating solar modules |
| CN104574221A (en) * | 2015-01-30 | 2015-04-29 | 华北电力大学（保定） | Method for identifying running states of photovoltaic power station on basis of electric quantity loss feature parameters |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226021A (en) * | 2017-12-26 | 2018-06-29 | 米亚索能光伏科技有限公司 | The weatherability detection method and system of a kind of photovoltaic module |
| CN110102876A (en) * | 2019-04-30 | 2019-08-09 | 旻投电力发展有限公司 | A kind of cryogenic assembly recovery technique based on laser |
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Application publication date: 20170125 |
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