PV Modules PAN File Parameter Measurement Engineering Report

PV Modules PAN File Parameter Measurement

Engineering Report

Client Name: Trina Solar Co., Ltd

Model: TSM-500DEG18MC.20(II)

Project No.: 4789498403-PF-012

Report Date: 2020-07-03

Report No: 4789498403-PF-012 Report Date: 2020-07-03

This report shall not be reproduced except in full, without the written approval of the UL.

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Test Location Information

Name: UL-CCIC Company Limited

Address: No. 2, Chengwan Road, Suzhou Industrial Park, Suzhou, Jiangsu 215122, China

Client Information

Name: Trina Solar Co., Ltd

Address: No.2 Tian he Road Trina PV Industrial Park New District Changzhou, Jiangsu, 213031, CN

Report Information

Report Number: 4789498403-PF-012

Report Date: 2020-07-03

Standard Reference: IEC 61853-1, 1st edition, dated 2011-01 Photovoltaic (PV) module performance testing and energy rating – Part 1: Irradiance and temperature performance measurements and power rating IEC 61215-2, First Edition, 2016-03, Terrestrial photovoltaic (PV) modules – Design qualification and type approval –Part 2: Test procedures.

Product Information

Type: Mono-crystalline photovoltaic module

Model: TSM-500DEG18MC.20(II)

Tests Conducted By: Yong-xing Tian Test Engineer

Name Title Signature

Reviewed By: Jason You Senior Project Engineer

Name Title Signature

Approved By: Zhu Hua Staff Engineer

Name Title Signature:



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General Information Information conveyed by this Report applies only to the test sample(s) actually tested. UL Company did not select the sample(s), determine whether the sample(s) was representative of production sample(s), nor was UL provided with information relative to the formulation or identification of component materials used in the test sample(s). UL Company has not established a factory Follow-Up Service Program to determine the conformance of subsequently produced products, nor has any provision been made to apply any registered mark of UL to such product(s). The issuance of this Report in no way implies any Listing, Classification or Recognition by UL Company and does not authorize use of UL’s marks, or other reference to UL, on the product or system. UL’s name and marks cannot be used in any packaging, advertising, promotion or marketing relating to the product and data in this Report, without UL Company’s prior written permission.

UL Company’s services are provided independently of UL’s Conformity Assessment services such as preliminary product investigations, product certification, or field evaluation services. UL Company does not provide specific product design solutions, including prescriptive revisions to existing or prospective product designs. UL Company does not guarantee, warranty or provide an assurance (express or implied) that a positive test result, compliance report, or issuance of a UL certification mark will result from the testing performed or the information contained in this Report. In no event shall UL be responsible to anyone for whatever use or non-use is made of the information contained in this Report and in no event shall UL Company, its employees, or its agents incur any obligation or liability for damages including, but not limited to, consequential damage arising out of or in connection with the use or inability to use the information contained in this Report. "UL Company” means a UL Contracting Party or an entity controlled by, controlling, or under common control with a UL Contracting Party. "Control" means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of an entity, whether through ownership of more than 50% of the interests in such entity, by contract, or otherwise. The UL Company identified or referred to in a quotation or project confirmation or service agreement shall be referred to as “UL Contracting Party”. The results of this report relate only to the items tested. The applied module’s parameters were scaled by the factor required to achieve a STC power rating equal to the manufacturer’s reported datasheet value of the testing module at STC, and maybe represent the actual parameters or not. This report shall not be reproduced except in full, without the written approval of the laboratory. If you have any objection to this report, please raise it within 15 days from the date of receipt of the report. If there is no objection more than 15 days after the acceptance of the report, the report shall be deemed to have been fully accepted.



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Contents 1. Summary ............................................................................................................................ 5

1.1 PAN File Creation ........................................................................................................ 5

1.2. Manufacture’s Specifications ....................................................................................... 5

1.3. Summary of Testing Module For Model TSM-485DEG18MC.20(II) .............................. 5

2. Sample Identification ........................................................................................................... 6

3. Laboratory Testing .............................................................................................................. 7

3.1. Stabilization ................................................................................................................. 7

3.2. Visual Inspection .......................................................................................................... 9

3.3. Performance at STC ...................................................................................................11

3.4. Performance according to IEC61853-1 .......................................................................13

3.5. Measurement of temperature coefficients ...................................................................15

4. PAN file profile creation ......................................................................................................20

5. Appendix A – Instrument reference list ...............................................................................22

6. Appendix B – Label ............................................................................................................23

7. Appendix C – Product pictures ...........................................................................................24

8. Appendix D – Manufacturer’s Datasheet ............................................................................25

9. Appendix E – Bill of Materials (BOM) .................................................................................27



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1. Summary

1.1 PAN File Creation

An optimized PAN file for TSM-500DEG18MC.20(II) PV module was created according to measured values of TSM-485DEG18MC.20(II) module efficiency at different irradiances at temperatures of 15°C, 25°C, 50°C, 75°C. (refer to the standard IEC 61853-1 edition 1, 2011) and the model TSM-500DEG18MC.20(II) datasheet. Prior to creating the optimized PAN file, all laboratory measurement results of the TSM-485DEG18MC.20(II) PV module were scaled by the factor required to achieve a STC power rating equal to the manufacturer’s reported datasheet value of the TSM-500DEG18MC.20(II) PV module at STC.

1.2. Manufacture’s Specifications

Model Pmax(W) Voc(V) Vmp(V) Isc(A) Imp(A)

TSM-500DEG18MC.20(II)

500 51.5 43.4 12.13 11.53

Table 1 Model TSM-500DEG18MC.20(II) specifications

1.3. Summary of Testing Module For Model TSM-485DEG18MC.20(II)

No. Item Result

3.1 Visual Inspection As Received All the samples no major defect.

3.2 Stabilization Average degradation less than 1%.

3.3 Performance at STC

Average Pmax =477.725 W

Minimum Pmax =476.484 W

Maximum Pmax =478.408 W

Maximum power bifaciality 𝜑Pmax = 0.774

3.4 Performance according to IEC61853-1 See page 13, PAN file profile, table 7 for details.

3.5 Measurement of temperature coefficients

α(ISC) =0.0449%/°C,

β(Voc) =-0.2622%/°C,

δ(Pmp) =-0.3526%/°C.

Table 2: Summary of test results for model TSM-485DEG18MC.20(II)



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2. Sample Identification

Sample No.

Sample Identification

Number

Date Received

Test Date

Product Description Serial Number

1 3081413-001

2020-05-26

2020-06-04~

2020-06-25

Trina Solar Co., Ltd, Model TSM-

485DEG18MC.20(II)

A08200500100145

2 3081413-002 A08200500100147

3 3081413-003 A08200500100146

Table 3 "Sample identification list" Note: 1) Samples were selected and provided by Trina Solar. 2) No sample manufacturing witnessing/oversight performed.



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3. Laboratory Testing

3.1. Stabilization

Description and Setup

The module was exposed to a total irradiance according to IEC 61215-2, First Edition, 2016. The following formula shall be taken as the criterion to assess whether a module has reached its stabilized

electrical power output:

(Pmax – Pmin) / Paverage < x

Where x is defined in the technology specific parts of this standard, x=0.01 for c-Si modules.



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Results

Sample No.

Interval Integrated irradiation (kWh/m2)

Average Irradiance (W/m2)/

Exposed Time (h:m)

Module temp. (°C)

Resistive Load (Ω)

Pmax of Stage (W)

Avr. Degra-dation

(%)

1

Initial 8.1 11:45 58.3 3.7 482.896 -

1st 7.8 12:24 59.4 3.7 478.424 -

2nd 6.9 11:35 58.5 3.7 477.032 1.22

3st 8.5 12:38 58.5 3.7 476.484 0.41

2

Initial 8.1 11:45 58.3 3.7 484.194

1st 7.8 12:24 59.4 3.7 479.572 --

2nd 6.9 11:35 58.5 3.7 478.234 1.24

3st 8.5 12:38 58.5 3.7 478.283 0.28

3

Initial 8.1 11:45 58.3 3.7 484.784 -

1st 7.8 12:24 59.4 3.7 479.562 -

2nd 6.9 11:35 58.5 3.7 478.974 1.21

3st 8.5 12:38 58.5 3.7 478.408 0.24

Table 4 "Light Induce Degradation"



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3.2. Visual Inspection


Samples were visually inspected according to IEC 61215-2, First Edition, 2016. To detect visual defects prior testing. The test was performed with an illumination of not less than 1000 lux. The modules were inspected for the following conditions (if applicable) primarily, additionally all other observations on the modules were noted.

• Broken, cracked, or torn external surfaces.

• Bent or misaligned external surfaces, including superstrates, substrates, frames and junction boxes

to the extent that the operation of the PV module would be impaired.

• Bubbles or delaminations forming a continuous path between electric circuit and the edge of the

module.

• If the mechanical integrity depends on lamination or other means of adhesion, the sum of the area

of all bubbles shall not exceed 1 % of the total module area.

• Evidence of any molten or burned encapsulant, backsheet, frontsheet, diode or active PV

component.

• Loss of mechanical integrity to the extent that the installation and operation of the module would

be impaired.

• Cracked/broken cells which can remove more than 10 % of the cell’s photovoltaic active area from

the electrical circuit of the PV module.

• Voids in, or visible corrosion of any of the layers of the active (live) circuitry of the module

extending over more than 10 % of any cell.

• Broken interconnections, joints or terminals.

• Any short-circuited live parts or exposed live electrical parts.

• Module markings (label) are no longer attached or the information is unreadable.



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Results

Sample No. Results of Visual Inspection

1 No major finding

2 No major finding

3 No major finding

Table 5 Results "Visual Inspection As Received"



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3.3. Performance at STC


The performance at STC according to IEC61215-2 has been determined by use of a class A pulsed sun simulator according to IEC60904-9 and a photovoltaic reference device according to 60904-2 of the same technology as the sample under test.

• Before each test the photovoltaic reference device was placed on the pulsed sun simulator to adjust the test equipment and assure the correctness of the measurement.

• After adjusting the pulsed sun simulator the sample under test was placed on the test area and hold at a temperature of 25°C +/-1°C.

• The current-voltage characteristics were measured and recorded at an irradiance of 1000 W/m².

• To determine the maximum power bifaciality of the test specimen, according to IEC TS 60904-1-2, the main I-V characteristics of the front and the rear sides shall be measured at STC. A non-irradiated background shall be used in order to avoid the illumination of the non-exposed side.



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Results

Sample No. Side

Isc [A] Imp [A] Voc [V] Vmp [V] Pmax [W]

FF [%]

1 Front 11.932 51.359 11.357 42.518 482.896 78.798

Rear 9.176 50.849 8.746 42.716 373.611 80.073

2 Front 11.937 51.417 11.367 42.598 484.194 78.887

Rear 9.154 50.893 8.714 42.807 373.023 80.068

3 Front 11.924 51.456 11.372 42.630 484.784 79.012

Rear 9.161 50.944 8.731 42.870 374.309 80.208

Table 6-1 "Performance at STC"

Sample No. Front Side Power Measurement [W]

Rear Side Power Measurement [W]

Maximum Power Bifaciality

[%]

1 482.896 373.611 0.774

2 484.194 373.023 0.770

3 484.784 374.309 0.772

Average 483.958 373.648 0.772

Table 7-2 "Performance at STC"

Statement:

1) Estimated measurement uncertainty : U(Pmp): 1.9%, U(ISC): 1.8%, U(Voc): 0.3%; k = 2. 2) Measured STC power agrees with the manufacturer’s rated power range within the test

laboratories measurement uncertainty.



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3.4. Performance according to IEC61853-1


The measurements were taken according to IEC 61853-1 1st edition rev. date 2011-01 clause 8.5 with a Class A pulsed solar simulator. Matrices of module performance with respect to temperature and irradiance were measured and separate tables for Isc, Voc, Vmax and Pmax were generated using sufficient data to assure statistical validity to the measurements (see clause 8.3.11 and 8.5.11 of IEC 61853-1). After generating the matrix of parameters the modules were remeasured at STC to verify that the performance is stable.



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Results

Sam

ple

No

. Irr.

[W/m²]

Isc [A] Voc [V] Vmax [V] Pmax [W]

@

15°C

@

25°C

@

50°C

@

75°C

@

15°C

@

25°C

@

50°C

@

75°C

@

15°C

@

25°C

@

50°C

@

75°C

@

15°C

@

25°C

@

50°C

@

75°C

2

1100 N/A 12.980 13.112 13.246 N/A 51.480 48.223 44.755 N/A 42.367 38.727 34.929 N/A 523.566 478.188 429.706

1000 11.764 11.803 11.953 12.085 52.580 51.227 47.993 44.375 43.859 42.396 38.731 34.822 493.017 476.484 436.632 391.097

800 9.441 9.481 9.581 9.688 52.153 50.831 47.408 43.648 43.949 42.479 38.707 34.632 397.086 384.033 349.986 312.254

600 7.090 7.118 7.193 7.277 51.633 50.243 46.750 42.690 43.940 42.445 38.606 34.262 298.352 288.209 262.488 232.287

400 4.730 4.749 4.795 N/A 50.813 49.448 46.088 N/A 43.638 42.176 38.555 N/A 197.663 191.122 175.028 N/A

200 2.366 2.375 N/A N/A 49.588 48.218 N/A N/A 42.949 41.513 N/A N/A 96.879 93.692 N/A N/A


3

1100 N/A 12.961 13.109 13.243 N/A 51.502 48.286 44.903 N/A 42.370 38.788 35.074 N/A 523.259 478.996 431.508

1000 11.761 11.810 11.944 12.072 52.555 51.295 48.057 44.665 43.863 42.462 38.827 35.130 493.391 478.283 437.516 394.624

800 9.436 9.464 9.570 9.673 52.162 50.860 47.580 44.078 43.999 42.505 38.914 35.116 397.775 384.158 351.890 316.866

600 7.080 7.106 7.183 7.262 51.602 50.273 46.940 43.436 43.936 42.448 38.819 35.051 298.365 288.394 263.871 237.828

400 4.733 4.751 4.795 N/A 50.810 49.488 46.088 N/A 43.654 42.226 38.555 N/A 198.247 191.366 175.028 N/A



4

1100 N/A 12.935 13.083 13.221 N/A 51.573 48.245 44.710 N/A 42.410 38.729 34.843 N/A 523.281 478.024 428.464

1000 11.740 11.786 11.921 12.051 52.654 51.350 48.061 44.488 43.968 42.515 38.807 34.909 494.414 478.408 436.731 391.503

800 9.424 9.450 9.559 9.675 52.268 50.928 47.467 43.520 44.067 42.546 38.757 34.471 398.446 384.251 350.508 310.851

600 7.082 7.095 7.178 7.265 51.681 50.323 46.867 42.768 43.973 42.496 38.702 34.331 299.007 288.480 263.183 232.912

400 4.726 4.746 4.794 N/A 50.875 49.542 45.999 N/A 43.717 42.284 38.435 N/A 198.495 191.535 174.582 N/A



Avera

ge

1100 N/A 12.959 13.101 13.237 N/A 51.518 48.251 44.789 N/A 42.382 38.748 34.949 N/A 523.369 478.403 429.893

1000 11.755 11.800 11.939 12.069 52.596 51.291 48.037 44.509 43.897 42.458 38.788 34.954 493.607 477.725 436.960 392.408

800 9.434 9.465 9.570 9.679 52.194 50.873 47.485 43.749 44.005 42.510 38.793 34.740 397.769 384.147 350.795 313.324

600 7.084 7.106 7.185 7.268 51.639 50.280 46.852 42.965 43.950 42.463 38.709 34.548 298.575 288.361 263.181 234.342

400 4.730 4.749 4.795 N/A 50.833 49.493 46.058 N/A 43.670 42.229 38.515 N/A 198.135 191.341 174.879 N/A



Table 8 " Performance measurements according to IEC61853-1 "



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3.5. Measurement of temperature coefficients


The measurements were taken according to IEC 61853-1 1st edition rev. date 2011-01 with a Class A pulsed solar simulator. The purpose is to determine the following temperature coefficients:

• Short Circuit current (α)

• Open circuit voltage (β)

• Peak (max) power (δ) The coefficients so determined are valid at the irradiance at which the measurements were made.

• The current-voltage characteristics were measured and recorded at an irradiance of 1000 W/m².

• The original data is from “Performance measurements according to IEC61853-1”



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Results

Sample No. α [%/°C] β [%/°C] δ [%/°C]

1 0.0464 -0.2662 -0.3554

2 0.0442 -0.2566 -0.3452

3 0.0442 -0.2638 -0.3573

Average 0.0449 -0.2622 -0.3526

Table 9 "Average Measurement of Temperature coefficients" Note: α – Temperature coefficient of Isc β – Temperature coefficient of Voc δ – Temperature coefficient of Pmax The main I-V characteristics of the front side be measured at STC, and a non-irradiated background be used in order to avoid the illumination of the rear side.



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Figure 1 "Temperature coefficient-Isc" for sample No. 1~3



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Figure 2 "Temperature coefficient-Voc" for sample No 1~3



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Figure 3 "Temperature coefficient-Pmax" for sample No. 1~3



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4. PAN file profile creation

Use PVSYST V6.86 generate the PAN file profile.

The measurements for model TSM-485DEG18MC.20(II) are performed for a set of different irradiances and temperatures according to IEC 61853-1 and the optimized PAN file model parameters are listed in below table.

Model Parameter Value

Rsh(Ω) 350

Rs(Ω) 0.214

Rshunt at Ginc=0 8000

Exponential Parameter 3.2

Pmpp temper. coeff. (at STC)(%/℃) -0.3526

Table 10 Optimized PAN file model parameters for model TSM-485DEG18MC.20(II)

All laboratory measurement results of the TSM-485DEG18MC.20(II) PV module were scaled by the factor required to achieve a STC power rating equal to the manufacturer’s reported datasheet value of the TSM-500DEG18MC.20(II) PV module at STC. The model parameters which are adjusted in the PAN file optimization process are:

Model Parameter Value

Rsh(Ω) 330

Rs(Ω) 0.209

Rshunt at Ginc=0 8000

Exponential Parameter 3.2

Pmpp temper. coeff. (at STC)(%/℃) -0.3526

Table 11 Optimized PAN file model parameters for model TSM-500DEG18MC.20(II)



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Figure 4 " PAN file profile "



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5. Appendix A – Instrument reference list

All instruments calibrations are traceable to national normal.

Instrument ID

Instrument type Model Calibration date

Last Due

151150 Flash Solar Simulator Flash solar simulator

2019-08-22 2020-08-21

151368 Thermocouple Temperature sensor 2020-03-10 2021-03-09



151371 Thermometer Temperature sensor 2020-03-10 2021-03-09

138571 Datalogger, RH &

Temperature Temperature &

Humidity Recorder 2019-07-24 2020-07-23

172081 Pyranometer Pyranometer 2019-10-22 2020-10-21

191604 WPVS Reference Solar

Cell WPVS Reference

Solar Cell 2019-07-26 2020-07-25

139353 Illuminance meter Illuminance Meter 2019-07-02 2020-07-01

138535 LASER DISTANCER

METER Laser distancer

meter 2019-09-25 2020-06-24

138535 LASER DISTANCER

METER Laser distancer

meter 2020-06-22 2021-06-21

56373 Temperature Chamber Climatic chamber 2020-01-14 2021-01-13

67081 Temperature Chamber Climatic chamber 2020-05-12 2021-05-11

Table 12 " Instrument reference list"



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6. Appendix B – Label

Label



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7. Appendix C – Product pictures

Front view Rear view



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8. Appendix D – Manufacturer’s Datasheet



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9. 7BAppendix E – Bill of Materials (BOM)

Please refer to the appendix UL-SOLAR-4789498403-TRINA-BOM002 for the detailed BOM.



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END OF ENGINEERING REPORT

PV Modules PAN File Parameter Measurement Engineering Report

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