IEC 62670-3-2017 Photovoltaic concentrators (CPV) - Performance testing - Part 3 Performance measurements and power rating《聚光光伏(CPV) 性能试验 第3部分 性能测量和功率定额》.pdf

1、 IEC 62670-3 Edition 1.0 2017-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Photovoltaic concentrators (CPV) Performance testing Part 3: Performance measurements and power rating Concentrateurs photovoltaques (CPV) Essai de performances Partie 3: Mesurages de performances et rapport de puissance IE

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19、c Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62670-3 Edition 1.0 2017-02 INTERNATIONAL STANDARD NORME INTERNATIONALE Photovoltaic concentrators (CPV) Performance testing Part 3: Performance measurements and power rat

20、ing Concentrateurs photovoltaques (CPV) Essai de performances Partie 3: Mesurages de performances et rapport de puissance INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 27.160 ISBN 978-2-8322-3859-2 Registered trademark of the International Electrotechnical

21、Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 62670-3:2017 IEC 2017 CO

22、NTENTS FOREWORD . 5 1 Scope 7 2 Normative references 7 3 Concepts . 7 4 Sampling . 11 5 DUT marking and information 11 5.1 Indelible marking 11 5.2 Preliminary information indicated by manufacturer 11 6 Testing 11 7 Report . 12 8 Standard apparatus requirements 13 8.1 Irradiance measurement equipmen

23、t 13 8.1.1 Normal incidence pyrheliometer (NIP) 13 8.1.2 Global normal irradiance pyranometer . 13 8.1.3 Spectral measurement device 13 8.1.4 Component reference cells 14 8.1.5 Indoor reference irradiance sensor 14 8.1.6 Auxiliary irradiance sensor . 15 8.2 Solar simulator 15 8.2.1 General requireme

24、nts 15 8.2.2 Continuous light simulator . 15 8.2.3 Single-flash pulse simulator . 16 8.2.4 Multi-flash pulse simulator . 16 8.3 Solar tracker or DUT mounting system 16 8.3.1 General . 16 8.3.2 Pointing error sensor . 16 8.4 Temperature measurement and control . 16 8.4.1 DUT temperature sensor 16 8.4

25、2 Ambient temperature sensor 16 8.4.3 Lens or optics temperature sensor . 16 8.4.4 Temperature control system 17 8.5 Current-voltage measurement . 17 8.6 Anemometer . 17 8.7 Electrical load . 17 9 Test procedures 18 9.1 Measurement of DUT temperature coefficients 18 9.1.1 Purpose . 18 9.1.2 Apparat

26、us 18 9.1.3 Data collection procedure and data requirements 18 9.1.4 Temperature coefficient determination . 21 9.2 DUT reference V ocat (900 W/m 2and 25 C cell temperature) 22 9.2.1 General . 22 9.2.2 Reference V ocdark I-V procedure . 22 9.2.3 Reference V ocusing a solar simulator . 23 9.3 Calcula

27、ting the average DUT cell temperature 23 9.3.1 Purpose . 23 IEC 62670-3:2017 IEC 2017 3 9.3.2 Procedure 24 9.4 Reference irradiance sensor calibration and reference I scdetermination 24 9.4.1 Purpose . 24 9.4.2 Data requirements . 24 9.4.3 Determination of the calibrated and reference I sc , (I sc,

28、cal and I scr ) . 24 9.4.4 Calibration requirement . 26 9.5 Indoor I-V measurements of a CPV DUT . 26 9.5.1 Purpose . 26 9.5.2 General measurement requirements 26 9.5.3 DUT indoor alignment procedure . 28 9.5.4 Procedure for single-flash pulsed solar simulators . 28 9.5.5 Procedure for multi-flash p

29、ulsed solar simulators . 28 9.6 Outdoor I-V measurements of a CPV DUT 28 9.6.1 Purpose . 28 9.6.2 Apparatus 28 9.6.3 Procedure 29 9.6.4 Report . 29 9.7 CSOC and CSTC power ratings 30 9.7.1 Data filtering requirements for CSOC or CSTC translation . 30 9.7.2 CSOC power determination . 31 9.7.3 CSTC po

30、wer determination 31 9.8 DUT alignment procedure and measurement of misalignment sensitivity . 32 9.8.1 Purpose . 32 9.8.2 Apparatus 32 9.8.3 Recommendations for initial DUT mounting . 33 9.8.4 General requirements 33 9.8.5 Individual off-axis sweeps and final DUT alignment . 33 9.8.6 Alternate elli

31、pse plot procedure for reporting misalignment sensitivity 34 9.8.7 Reporting . 34 9.9 Mounting and aligning the pointing error sensor and other alignment sensitive equipment 35 9.9.1 Purpose . 35 9.9.2 Procedure 35 9.10 Outdoor lens temperature performance test 35 9.10.1 General guidance 35 9.10.2 P

32、rocedure 36 9.10.3 Reporting . 37 9.11 Indoor lens temperature performance test . 38 9.11.1 General guidance 38 9.11.2 Procedure 38 9.11.3 Reporting . 39 Bibliography 40 Figure 1 Collimating tube geometry 9 Figure 2 Solar tracker pointing error . 10 Figure 3 Example of acceptance angle data for a CP

33、V DUT . 10 Figure 4 Flow chart of performance testing for the DUT . 12 Figure 5 V ocdata after an uncover event . 20 4 IEC 62670-3:2017 IEC 2017 Figure 6 Figure 5 repeated after removing one data point 21 Figure 7 The derivative of dark I-V data plotted to determine R s23 Figure 8 Iterative approach

34、 to determine I scand V oc. 26 Figure 9 Raw data for extracting the impact of lens temperature 37 Figure 10 Filtered data for extracting impact of lens temperature . 37 Table 1 SMR requirements for indoor measurements . 27 IEC 62670-3:2017 IEC 2017 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PHOTO

35、VOLTAIC CONCENTRATORS (CPV) PERFORMANCE TESTING Part 3: Performance measurements and power rating FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object

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46、670-3 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. The text of this standard is based on the following documents: FDIS Report on voting 82/1204/FDIS 82/1233/RVD Full information on the voting for the approval of this International Standard can be found in the r

47、eport on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62670 series, published under the general title Photovoltaic concentrators (CPV) Performance testing, can be found on the IEC website. 6 IEC

48、62670-3:2017 IEC 2017 The committee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replac

49、ed by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. IEC 62670-3:2017 IEC 2017 7 PHOTOVOLTAIC CONCENTRATORS (CPV) PERFORMANCE TESTING Part 3: Performance measure