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BS EN IEC 60904-4:2020

BS EN IEC 60904-4:2020

$167.15

Photovoltaic devices – Reference solar devices. Procedures for establishing calibration traceability

Published By Publication Date Number of Pages
BSI 2020 34
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This part of IEC 60904 sets the requirements for calibration procedures intended to establish the traceability of photovoltaic (PV) reference devices to SI units as required by IEC 60904-2.

This document applies to PV reference devices that are used to measure the irradiance of natural or simulated sunlight for the purpose of quantifying the performance of PV devices. The use of a PV reference device is required in many standards concerning PV (e.g. IEC 60904-1 and IEC 60904-3).

This document has been written with single-junction PV reference devices in mind, in particular crystalline silicon, but it is sufficiently general to include other single-junction technologies.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 1 Scope
2 Normative references
3 Terms and definitions
13 Tables
Table 1 – Examples of reference instruments usedin a traceability chain of solar irradiance
14 4 Requirements for traceable calibration procedures of PV reference devices
5 Uncertainty analysis
Figures
Figure 1 – Schematic of most common reference instruments and transfer methods used in the traceability chains for solar irradiance detectors
15 6 Calibration report
7 Marking
16 Annex A (informative) Examples of validated calibration procedures
A.1 General
A.1.1 Overview
A.1.2 Examples of validated methods
A.1.3 List of common symbols
17 A.1.4 Common formulae
18 A.1.5 Reference documents
A.2 Global sunlight method (GSM)
A.2.1 General
19 A.2.2 Equipment
20 A.2.3 Measurements
A.2.4 Data analysis
21 A.2.5 Uncertainty estimates
22 A.2.6 Reference documents
A.3 Differential spectral responsivity calibration (DSR)
A.3.1 General
Table A.1 – Typical uncertainty components (k = 2) of global sunlight method
23 A.3.2 Equipment
A.3.3 Test procedure
25 A.3.4 Data analysis
A.3.5 Uncertainty estimate
26 Figure A.1 – Block diagram of differential spectral responsivity calibration superimposing chopped monochromatic radiation DE(l) and DC bias radiation Eb
Table A.2 – Uncertainty components (k = 2) of differential spectral responsivity calibration method on PV reference devices
27 A.3.6 Reference documents
Figure A.2 – Optical arrangement of differential spectral responsivity calibration
28 A.4 Solar simulator method (SSM)
A.4.1 General
A.4.2 Equipment
A.4.3 Calibration procedure
29 A.4.4 Data analysis
A.4.5 Uncertainty estimate
Table A.3 – Example of uncertainty components (k = 2) of a solar simulator method calibration
Table A.4 – Typical uncertainty components (k = 2) of a solar simulator method calibration when WRR traceable cavity radiometer is used
30 A.4.6 Reference documents
A.5 Direct sunlight method (DSM)
A.5.1 General
Figure A.3 – Schematic apparatus of the solar simulator method
31 A.5.2 Equipment
A.5.3 Measurements
A.5.4 Data analysis
32 A.5.5 Uncertainty estimate
A.5.6 Reference documents
Table A.5 – Typical uncertainty components (k = 2) of a direct sunlight method using temperature dependent spectral correction factor (Formula (A.16)), without applying a correction factor for the WRR to SI scale
33 Bibliography

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BS EN IEC 60904-4:2020
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