BS EN 62670-3:2017
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Photovoltaic concentrators (CPV). Performance testing – Performance measurements and power rating
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 48 |
This part of IEC 62670 defines measurement procedures and instrumentation for determining concentrator photovoltaic performance at concentrator standard operating conditions (CSOC) and concentrator standard test conditions (CSTC), defined in IEC 62670-1, including power ratings.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 8 | English CONTENTS |
| 11 | FOREWORD |
| 13 | 1 Scope 2 Normative references 3 Concepts |
| 15 | Figures Figure 1 – Collimating tube geometry |
| 16 | Figure 2 – Solar tracker pointing error Figure 3 – Example of acceptance angle data for a CPV DUT |
| 17 | 4 Sampling 5 DUT marking and information 5.1 Indelible marking 5.2 Preliminary information indicated by manufacturer 6 Testing |
| 18 | 7 Report Figure 4 – Flow chart of performance testing for the DUT |
| 19 | 8 Standard apparatus requirements 8.1 Irradiance measurement equipment 8.1.1 Normal incidence pyrheliometer (NIP) 8.1.2 Global normal irradiance pyranometer 8.1.3 Spectral measurement device |
| 20 | 8.1.4 Component reference cells 8.1.5 Indoor reference irradiance sensor |
| 21 | 8.1.6 Auxiliary irradiance sensor 8.2 Solar simulator 8.2.1 General requirements 8.2.2 Continuous light simulator |
| 22 | 8.2.3 Single-flash pulse simulator 8.2.4 Multi-flash pulse simulator 8.3 Solar tracker or DUT mounting system 8.3.1 General 8.3.2 Pointing error sensor 8.4 Temperature measurement and control 8.4.1 DUT temperature sensor 8.4.2 Ambient temperature sensor 8.4.3 Lens or optics temperature sensor |
| 23 | 8.4.4 Temperature control system 8.5 Current-voltage measurement 8.6 Anemometer 8.7 Electrical load |
| 24 | 9 Test procedures 9.1 Measurement of DUT temperature coefficients 9.1.1 Purpose 9.1.2 Apparatus 9.1.3 Data collection procedure and data requirements |
| 26 | Figure 5 – Voc data after an uncover event |
| 27 | 9.1.4 Temperature coefficient determination Figure 6 – Figure 5 repeated after removing one data point |
| 28 | 9.2 DUT reference Voc at (900 W/m2 and 25 °C cell temperature) 9.2.1 General 9.2.2 Reference Voc dark I-V procedure |
| 29 | 9.2.3 Reference Voc using a solar simulator 9.3 Calculating the average DUT cell temperature 9.3.1 Purpose Figure 7 – The derivative of dark I-V data plotted to determine Rs |
| 30 | 9.3.2 Procedure 9.4 Reference irradiance sensor calibration and reference Isc determination 9.4.1 Purpose 9.4.2 Data requirements 9.4.3 Determination of the calibrated and reference Isc, (Isc, cal and Iscr) |
| 32 | 9.4.4 Calibration requirement 9.5 Indoor I-V measurements of a CPV DUT 9.5.1 Purpose 9.5.2 General measurement requirements Figure 8 – Iterative approach to determine Isc and Voc |
| 33 | Table 1 – SMR requirements for indoor measurements |
| 34 | 9.5.3 DUT indoor alignment procedure 9.5.4 Procedure for single-flash pulsed solar simulators 9.5.5 Procedure for multi-flash pulsed solar simulators 9.6 Outdoor I-V measurements of a CPV DUT 9.6.1 Purpose 9.6.2 Apparatus |
| 35 | 9.6.3 Procedure 9.6.4 Report |
| 36 | 9.7 CSOC and CSTC power ratings 9.7.1 Data filtering requirements for CSOC or CSTC translation |
| 37 | 9.7.2 CSOC power determination 9.7.3 CSTC power determination |
| 38 | 9.8 DUT alignment procedure and measurement of misalignment sensitivity 9.8.1 Purpose 9.8.2 Apparatus |
| 39 | 9.8.3 Recommendations for initial DUT mounting 9.8.4 General requirements 9.8.5 Individual off-axis sweeps and final DUT alignment |
| 40 | 9.8.6 Alternate ellipse plot procedure for reporting misalignment sensitivity 9.8.7 Reporting |
| 41 | 9.9 Mounting and aligning the pointing error sensor and other alignment sensitive equipment 9.9.1 Purpose 9.9.2 Procedure 9.10 Outdoor lens temperature performance test 9.10.1 General guidance |
| 42 | 9.10.2 Procedure |
| 43 | 9.10.3 Reporting Figure 9 – Raw data for extracting the impact of lens temperature Figure 10 – Filtered data for extracting impact of lens temperature |
| 44 | 9.11 Indoor lens temperature performance test 9.11.1 General guidance 9.11.2 Procedure |
| 45 | 9.11.3 Reporting |
| 46 | Bibliography |
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BS EN 62670-3:2017
Photovoltaic concentrators (CPV). Performance testing – Performance measurements and power rating Published By Publication Date…
