CN102141446A - Method for testing rated working temperature of component battery under non-standard environment condition - Google Patents
Method for testing rated working temperature of component battery under non-standard environment condition Download PDFInfo
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- CN102141446A CN102141446A CN201010620173.5A CN201010620173A CN102141446A CN 102141446 A CN102141446 A CN 102141446A CN 201010620173 A CN201010620173 A CN 201010620173A CN 102141446 A CN102141446 A CN 102141446A
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Abstract
The invention relates to a method for testing the rated working temperature of a component battery under the non-standard environment condition, comprising the following steps of, firstly, recording an average value T1 of the temperatures tested by a thermocouple, an average value T2 of the temperatures of all battery slices, an average value T3 of the temperatures of battery slices at the thermocouple, and the junction temperature of the battery slices TJ=T1+(T2-T3) at a certain moment; secondly, in an open circuit state, recording the junction temperature TJ of the battery slices at the certain moment, the environment temperature Tamb, the irradiance G, the wind speed V and a wind direction; thirdly, with regression fitting analysis, calculating a value of TJ-Tamb when G=800W/m2, wherein the value plus 20 DEG C is equal to a provisional value of the rated working temperature; and fourthly, finding out a suitable correction factor, wherein an intraday rated working temperature value of the component is Ti=provisional value of the rated working temperature+the correction factor, and an average value of Ti test results of many days is the rated working temperature of the component. The rated working temperature of the component obtained through the method is more accurate and can supply more effective parameters when a solar battery component, in particular to a building integrated photovoltaic (BIPV) component is estimated.
Description
Technical field
The present invention relates to a kind of under non-standard environmental baseline test suite battery nominal operation method of temperature.
Background technology
The nominal operation temperature test of sample assembly, it is the NOCT test, the conventional basic skills and the test process of reference plate method are: the sample assembly is installed on the open type support, reflect the temperature of monoblock unit by the temperature of measuring the two battery sheets in assembly middle part, such test can accurately not reflect the actual specified working temperature of assembly.So the applicant has applied for a kind of assembly sample test square formation that is used for the assembly property test, application number is: 201020548668.7, as illustrated in fig. 1 and 2, it comprises the test suite of solar module and 1 or 1 above additional testing device, the assembly array of n * n is formed in detachable connection between the assembly jointly.This test square formation is detection components nominal operation temperature or other performances under certain actual environment condition more accurately, more accurately BIPV (BIPV) assembly is assessed, for BIPV systems engineering design provides more effective parameter.
At the test suite in the test square formation, the sample assembly of a kind of NOCT of being used for test that the applicant has applied for, application number is 201010233210.7, by choosing a plurality of representative test points in assembly, and the thermopair of measuring this place's temperature is set in test point.It mainly is for such thinking that the position of thermopair requires: the position of test point must be representative, and energy is the temperature of the battery of other positions of proxy component fully, and the reconnaissance principle is: from rotational symmetry, reconnaissance is come in symmetry aspect, center.Utilize this sample assembly can be accurately, detection components nominal operation temperature under certain actual environment condition easily, more accurately BIPV (BIPV) assembly is assessed, for BIPV systems engineering design provides more effective parameter.
Simultaneously for test suite or the test square formation real simulated environment is provided, the applicant has applied for a kind of environment simulator that is used for component N OCT test, application number is 201010198173.0, this environment simulator comprises environmental simulation box and test suite arrangement plate, test suite settles plate to be placed in the environmental simulation box, test suite is settled the degree of depth of the thickness of plate less than the environmental simulation box, on test suite arrangement plate and environmental simulation box, air vent is set, and test suite is settled corresponding one by one perforation of air vent on plate and the environmental simulation box.Because the complete simulated assembly actual working environment of device of the present invention, make test result more accurately reflect the assembly actual work temperature, help assessment, thereby provide parameter more accurately and effectively for engineering design the assembly generated output.
Summary of the invention
Technical matters to be solved by this invention is: a kind of method of testing that can more accurate test BIPV assembly battery nominal operation temperature under non-standard environmental baseline is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of under non-standard environmental baseline test suite battery nominal operation method of temperature, in assembly to be tested, choose the test point more than 2, and by this temperature of locating of thermocouple assay, concrete steps are:
A. note the temperature that each thermopair surveys and calculate its mean value T
1, the temperature of all battery sheets of test suite and calculating mean value T
2, the temperature and the calculating mean value T of test thermopair place battery sheet
3, by formula T
J=T
1+ (T
2-T
3) calculate certain junction temperature T of battery sheet constantly
J, in the formula:
T
1The mean value of-thermopair measured temperature,
T
2The medial temperature of-all batteries,
T
3The medial temperature of-thermopair place battery sheet,
T
jThe junction temperature of-certain moment battery sheet;
B. under open-circuit condition, the record following parameters is the function of time, at least 10 secondary data:
A) the junction temperature T of certain moment battery sheet
J,
B) environment temperature T
Amb,
C) irradiance G,
D) wind speed V,
E) wind direction;
D. make (T
J-T
Amb) with the curve that irradiance G changes, do the regression fit analysis by these data points, calculate G=800W/m according to fit equation
2The time, T
J-T
AmbValue, this value adds 20 ℃ of provisional values that promptly provide the nominal operation temperature;
E. computing environment temperature-averaging value and wind speed mean value, and from nominal operation temperature correction factor chart, find out suitable modifying factor by environment temperature mean value and wind speed mean value;
F. the assembly nominal operation temperature value T on the same day
iProvisional value+the modifying factor of=nominal operation temperature;
G. repeat the A-F test procedure again, obtain the assembly nominal operation temperature T of every day
i
H. write down the test result of assembly nominal operation temperature every day: T
1, T
2, T
3, T
4, T
5... T
nThe mean value of assembly nominal operation temperature
T
s-assembly nominal operation temperature,
T
i-every day assembly nominal operation temperature,
N-tests fate (number of times),
T
SBe designated as assembly nominal operation temperature.
Further, the data that write down among the step B need guarantee to comprise the data of front and back at local high noon, reject the data that write down under following situation:
1. irradiance is lower than 400Wm-2;
2. record irradiance during the 10min change surpass 10% or more from peak to peak after the 10min interval;
3. wind speed is beyond 1ms-1 ± 0.75ms-1 scope;
4. environment temperature is beyond 20 ℃ ± 15 ℃ scopes, or changes above 5 ℃;
5. after wind speed surpasses the strong wind of 4ms-1 in the 10min;
6. wind direction is in east or west ± 20 ° of scopes.
The invention has the beneficial effects as follows: more accurate by the assembly nominal operation temperature that this method obtains, to solar module, particularly BIPV (BIPV) can provide more effective parameter when assembly is assessed.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples;
Fig. 1 is the synoptic diagram of n assembly square formation when being odd number;
Fig. 2 is the synoptic diagram of n assembly square formation when being even number;
Fig. 3 is a crystalline silicon class component back side thermopair layout points;
Fig. 4 is a film class component back side thermopair layout points;
Fig. 5 is the structural representation of environment simulator;
Fig. 6 is a chart of searching the nominal operation temperature correction factor;
Fig. 7 is the regression fit analysis chart;
Among the figure: 1. test suite, 2. assembly, 3. battery sheet, 4. thermopair, 5. air vent, 6. test suite is settled plate, 7. environmental simulation box.
Embodiment
A kind of test square formation is designed to n * n array, and the installation of middle installation testing assembly and test suite must be detachable.When n was odd number, the installation site of test suite as shown in Figure 1.When n was even number, the installation site of test suite as shown in Figure 2.
In test suite, choose a plurality of representative test points, and the thermopair of measuring this place's temperature is set in test point.It mainly is for such thinking that the position of thermopair requires: the position of test point must be representative, fully the temperature of the battery of other positions of proxy component.6 * 6 crystal silicon solar battery component, the back side is by the thermoelectric pair-point of layout shown in Figure 1; Film class solar module is made a long or wide sample at 0.5m～0.8m, lays thermopair in default at least 5 even distributions in the back side of battery and representative point in the manufacturing process, and film class component thermopair layout points as shown in Figure 2.Selection is provided with thermopair
Test suite can be installed in the top of environment simulator, and its structure as shown in Figure 5.Comprise environmental simulation box and test suite arrangement plate, test suite settles plate to be placed in the environmental simulation box, test suite is settled the degree of depth of the thickness of plate less than the environmental simulation box, on test suite arrangement plate and environmental simulation box, air vent is set, and test suite is settled corresponding one by one perforation of air vent on plate and the environmental simulation box.Test suite just is placed in test suite and settles on the plate, and environmental simulation box among Fig. 5 and test suite arrangement plate material therefor should be designed to the heat conduction minimum to assembly, and disturbs the heat radiation of assembly front and rear surfaces as small as possible.
Test suite also is arranged in the environment simulator no matter be arranged in the test square formation, can adopt method of the present invention when test suite is tested, and is example with the real data,
1. recorded the mean value T of a certain moment battery sheet electric thermo-couple temperature in certain day
1=36.85 ℃, thermal infrared imager records the mean value T of all battery sheet temperature
2=20.2278 ℃, thermal infrared imager records the mean value T of thermopair place battery sheet temperature
3=20.2167 ℃, by formula T
J=T
1+ (T
2-T
3) calculate the junction temperature T of this moment battery sheet
J=36.8611 ℃; By that analogy;
2. make (T
J-T
Amb) with the change curve of irradiance G, and make linear fit, as Fig. 7;
3. according to fit equation, calculate and work as G=800W/m
2The time, T
J-T
Amb=39.0282 ℃, this value adds that 20 ℃ of provisional values that can draw battery nominal operation temperature are 59.0282 ℃;
4. according to environment temperature mean value, wind speed mean value, checking in assembly nominal operation correction factor by Fig. 6 is 0 ℃;
5. under 20 ℃ and 1m/S condition, assembly battery nominal operation temperature=nominal operation temperature provisional value+correction factor=59.0282 ℃;
6. the nominal operation temperature that recorded 5 days by above-mentioned steps is respectively: 59.0282 ℃, 59.6409 ℃, 58.1390 ℃, 60.2342 ℃, 58.2200 ℃, and by formula
The nominal operation temperature T s of computation module is: 59.05 ℃.
Claims (2)
1. test suite battery nominal operation method of temperature under non-standard environmental baseline is characterized in that: in assembly to be tested, choose the test point more than 2, and by thermocouple assay should the place temperature, concrete steps are:
A. note the temperature that each thermopair surveys and calculate its mean value T
1, the temperature of all battery sheets of test suite and calculating mean value T
2, the temperature and the calculating mean value T of test thermopair place battery sheet
3, by formula T
J=T
1+ (T
2-T
3) calculate certain junction temperature T of battery sheet constantly
J, in the formula:
T
1The mean value of-thermopair measured temperature,
T
2The medial temperature of-all batteries,
T
3The medial temperature of-thermopair place battery sheet,
T
jThe junction temperature of-certain moment battery sheet;
B. under open-circuit condition, the record following parameters is the function of time, at least 10 secondary data:
A) the junction temperature T of certain moment battery sheet
J,
B) environment temperature T
Amb,
C) irradiance G,
D) wind speed V,
E) wind direction;
D. make (T
J-T
Amb) with the curve that irradiance G changes, do the regression fit analysis by these data points, calculate G=800W/m according to fit equation
2The time, T
J-T
AmbValue, this value adds 20 ℃ of provisional values that promptly provide the nominal operation temperature;
E. computing environment temperature-averaging value and wind speed mean value, and from nominal operation temperature correction factor chart, find out suitable modifying factor by environment temperature mean value and wind speed mean value;
F. the nominal operation temperature value T of the assembly on the same day
iProvisional value+the modifying factor of=nominal operation temperature;
G. repeat the A-F test procedure again, obtain the assembly nominal operation temperature T of every day
i
H. write down the test result of assembly nominal operation temperature every day: T
1, T
2, T
3, T
4, T
5... T
nThe mean value of assembly nominal operation temperature
T
s-assembly nominal operation temperature,
T
i-every day assembly nominal operation temperature,
N-tests fate (number of times),
T
sBe designated as assembly nominal operation temperature.
2. according to claim 1 a kind of under non-standard environmental baseline test suite battery nominal operation method of temperature, it is characterized in that: the data that write down among the described step B need guarantee to comprise the data of front and back at local high noon, reject the data that write down under following situation:
1. irradiance is lower than 400Wm-2;
2. record irradiance during the 10min change surpass 10% or more from peak to peak after the 10min interval;
3. wind speed is beyond 1ms-1 ± 0.75ms-1 scope;
4. environment temperature is beyond 20 ℃ ± 15 ℃ scopes, or changes above 5 ℃;
5. after wind speed surpasses the strong wind of 4ms-1 in the 10min;
6. wind direction is in east or west ± 20 ° of scopes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620173.5A CN102141446B (en) | 2010-12-31 | 2010-12-31 | Method for testing rated working temperature of component battery under non-standard environment condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010620173.5A CN102141446B (en) | 2010-12-31 | 2010-12-31 | Method for testing rated working temperature of component battery under non-standard environment condition |
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| CN102141446A true CN102141446A (en) | 2011-08-03 |
| CN102141446B CN102141446B (en) | 2013-07-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941361A (en) * | 2017-03-27 | 2018-04-20 | 国网河南省电力公司电力科学研究院 | A kind of method of the relevant photovoltaic module operating temperature prediction of meteorology |
| CN108011586A (en) * | 2017-12-29 | 2018-05-08 | 苏州阿特斯阳光电力科技有限公司 | Nominal operating temperature measuring system and nominal operating temperature measuring method |
-
2010
- 2010-12-31 CN CN201010620173.5A patent/CN102141446B/en active Active
Non-Patent Citations (3)
| Title |
|---|
| 《Renewable Energy》 20041231 M.C. Alonso Garcı´a等 Estimation of photovoltaic module yearly temperature and performance based on Nominal Operation Cell Temperature calculations 第1997-2010页 1-2 , 第29期 * |
| 《Renewable Energy》 20091231 E. Skoplaki等 Operating temperature of photovoltaic modules:A survey of pertinent correlations 第23-29页 1-2 , 第34期 * |
| 《节能技术》 20090930 穆志君等 太阳能光伏光热一体化系统运行实验研究 第445-447、465页 1-2 第27卷, 第5期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941361A (en) * | 2017-03-27 | 2018-04-20 | 国网河南省电力公司电力科学研究院 | A kind of method of the relevant photovoltaic module operating temperature prediction of meteorology |
| CN108011586A (en) * | 2017-12-29 | 2018-05-08 | 苏州阿特斯阳光电力科技有限公司 | Nominal operating temperature measuring system and nominal operating temperature measuring method |
| CN108011586B (en) * | 2017-12-29 | 2023-10-20 | 苏州阿特斯阳光电力科技有限公司 | Nominal operating temperature measuring system and nominal operating temperature measuring method |
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| CN102141446B (en) | 2013-07-03 |
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Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: TRINA SOLAR Co.,Ltd. Address before: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee before: trina solar Ltd. |
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Address after: Solar photovoltaic industry park Tianhe Road 213031 north of Jiangsu Province, Changzhou City, No. 2 Patentee after: trina solar Ltd. Address before: 213031, No. 2, Tianhe Road, Xinbei Industrial Park, Jiangsu, Changzhou Patentee before: CHANGZHOU TRINA SOLAR ENERGY Co.,Ltd. |
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