IEC 60891:2021
Collections
International IEC standards
Publication date
October 2021
Number of pages
71 p.
Reference
IEC 60891:2021
IEC 60891:2021
October 2021
International standard
Current
Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics
IEC 60891:2021 defines procedures to be followed for temperature and irradiance corrections to the measured I-V (current-voltage) characteristics (also known as I-V curves) of photovoltaic (PV) devices. It also defines the procedures used to determine factors relevant to these corrections. Requirements for I-V measurement of PV devices are laid down in IEC 60904-1 and its relevant subparts.This third edition cancels and replaces the second edition published in 2009. This edition includes the following significant technical changes with respect to the previous edition:- adds guidance on which correction procedure shall be used depending on application;- introduces translation procedure 4 applicable to c-Si technologies with unknown temperature coefficients;- introduces various clarifications in existing procedures to improve measurement accuracy and reduce measurement uncertainty;- adds an informative annex for supplementary methods that can be used for series resistance determination.The content of the corrigendum 1 (2024-10) has been included in this copy.
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Sumary
Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics
IEC 60891:2021 defines procedures to be followed for temperature and irradiance corrections to the measured I-V (current-voltage) characteristics (also known as I-V curves) of photovoltaic (PV) devices. It also defines the procedures used to determine factors relevant to these corrections. Requirements for I-V measurement of PV devices are laid down in IEC 60904-1 and its relevant subparts.
This third edition cancels and replaces the second edition published in 2009. This edition includes the following significant technical changes with respect to the previous edition:
- adds guidance on which correction procedure shall be used depending on application;
- introduces translation procedure 4 applicable to c-Si technologies with unknown temperature coefficients;
- introduces various clarifications in existing procedures to improve measurement accuracy and reduce measurement uncertainty;
- adds an informative annex for supplementary methods that can be used for series resistance determination.
The content of the corrigendum 1 (2024-10) has been included in this copy.
IEC 60891:2021 defines procedures to be followed for temperature and irradiance corrections to the measured I-V (current-voltage) characteristics (also known as I-V curves) of photovoltaic (PV) devices. It also defines the procedures used to determine factors relevant to these corrections. Requirements for I-V measurement of PV devices are laid down in IEC 60904-1 and its relevant subparts.
This third edition cancels and replaces the second edition published in 2009. This edition includes the following significant technical changes with respect to the previous edition:
- adds guidance on which correction procedure shall be used depending on application;
- introduces translation procedure 4 applicable to c-Si technologies with unknown temperature coefficients;
- introduces various clarifications in existing procedures to improve measurement accuracy and reduce measurement uncertainty;
- adds an informative annex for supplementary methods that can be used for series resistance determination.
The content of the corrigendum 1 (2024-10) has been included in this copy.
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Replaced standards
(1)
IEC 60891:2009
December 2009
International standard
Cancelled
Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics
IEC 60891:2009 defines procedures to be followed for temperature and irradiance corrections to the measured I-V (current-voltage) characteristics of photovoltaic devices. It also defines the procedures used to determine factors relevant for these corrections. Requirements for I-V measurement of photovoltaic devices are laid down in IEC 60904-1. The main technical changes with regard the previous edition are as follows: - extends edition 1 translation procedure to irradiance change during I-V measurement; - adds 2 new translation procedures; - revises procedure for determination of temperature coefficients to include PV modules; - defines new procedure for determination of internal series resistance; - defines new procedure for determination of curve correction factor.
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The identification of these types of clauses is based on the document “ISO / IEC Directives, Part 2 - Principles and rules of structure and drafting of ISO documents ”as well as on a constantly enriched list of verbal forms.
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