International Standards and Conformity Assessment for all electrical, electronic and related technologies

TC 82

Solar photovoltaic energy systems

 

Detail

Committee
Working Groups
Project Leader

Current

Status

Frcst Pub

Date

Stability

Date

TC 82WG 2Mr Stefan WinterPPUB2019-082022

History

Stage
Document
Downloads
Decision Date
Target Date
AMW
82/910/RR PDF file 88 kB
2014-11-07 
ACDV
2014-11-082014-11
TCDV
2017-09-132017-06
CCDV
82/1343/CDV
PDF file 361 kB
PDF file 474 kB
2017-11-032017-11
PRVC
2018-01-262018-01
AFDIS
82/1540/RVC PDF file 360 kB
Word file 167 kB
2019-01-042019-03
AFDIS
82/1540A/RVC PDF file 378 kB
Word file 172 kB
2019-01-042019-03
TFDIS
2019-02-182019-02
DECFDIS
2019-03-292019-04
RFDIS
2019-04-112019-04
CFDIS
82/1590/FDIS

2019-05-242019-07
PRVD
2019-07-052019-07
APUB
82/1605/RVD PDF file 292 kB
2019-07-122019-07
BPUB
2019-07-122019-07
PPUB
2019-08-202019-08
  

Abstract

IEC 60904-7:2019 is available as IEC 60904-7:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

IEC 60904-7:2019 describes the procedure for correcting the spectral mismatch error introduced in the testing of a photovoltaic device, caused by the mismatch between the test spectrum and the reference spectrum (e.g. AM1.5 spectrum) and by the mismatch between the spectral responsivities (SR) of the reference device and of the device under test and therewith reduce the systematic uncertainty. This procedure is valid for single-junction devices but the principle may be extended to cover multi-junction devices. The purpose of this document is to give guidelines for the correction of the spectral mismatch error, should there be a spectral mismatch between the test spectrum and the reference spectrum as well as between the reference device SR and the device under test SR. The calculated spectral mismatch correction is only valid for the specific combination of test and reference devices measured with a particular test spectrum. This fourth edition cancels and replaces the third edition published in 2008. The main technical changes with respect to the previous edition are as follows:
- For better compatibility and less redundancy, the clause “Determination of test spectrum” refers to IEC 60904-9.
- The spectral mismatch factor is called SMM instead of MM to enable differentiation to the angular mismatch factor AMM and spectral angular mismatch factor SAMM.
- Formulae for the derivation and application of the spectral mismatch factor SMM are added.
- Links to new standards are given, e.g. concerning multi-junction devices.
- Corrected wording (responsivity instead of response and irradiance instead of intensity).


Project

IEC 60904-7:2019 ED4

Photovoltaic devices - Part 7: Computation of the spectral mismatch correction for measurements of photovoltaic devices