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IEC 60891:2021

Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics

Edition date: 2021-10-27
In Force
Available languages: Spanish, English, French
Summary: 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 définit des procédures à suivre pour les corrections en fonction de la température et de l'éclairement appliquées aux caractéristiques I-V (courant-tension) mesurées (également appelées courbes I-V) des dispositifs photovoltaïques (PV). Il définit également les procédures utilisées pour déterminer les facteurs appropriés pour ces corrections. Les exigences pour le mesurage I-V des dispositifs PV sont données dans l'IEC 60904-1 et ses sous-parties applicables.
Cette troisième édition annule et remplace la deuxième édition parue en 2009. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ajout de recommandations concernant la procédure de correction à utiliser selon l'application;
- introduction de la procédure de transposition 4 applicable aux technologies c-Si avec des coefficients de température inconnus;
- introduction de différentes classifications dans les procédures existantes afin d'améliorer la précision de mesure et de réduire l'incertitude de mesure;
- ajout d'une annexe informative qui présente des méthodes supplémentaires qui peuvent être utilisées pour déterminer la résistance-série.
Le contenu du corrigendum 1 (2024-10) a été pris en considération dans cet exemplaire.
ICS: 27.160-Solar energy engineering
CTN: TC 82 - 1276

Standards Cancellations

Anula a IEC 60891:2009

Correcciones Normas

Es corregida por IEC 60891:2021/COR1:2024

Otras Relaciones

Acuerdo de Frankfurt FprEN IEC 60891:2021

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