EN 60891:2010
(Main)Photovoltaic devices - Procedures for temperature and irradiance corrections to measured I-V characteristics
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.
Verfahren zur Umrechung von gemessenen Strom-Spannungs-Kennlinien von photovoltaischen Bauelementen auf andere Temperaturen und Bestrahlungsstärken
Dispositifs photovoltaïques - Procédures pour les corrections en fonction de la température et de l'éclairement à appliquer aux caractéristiques I-V mesurées
La CEI 60891:2009 définit des procédures à suivre pour les corrections en fonction de la température et de l'éclairement à appliquer aux caractéristiques I-V (courant-tension) mesurées des dispositifs photovoltaïques. Elle définit également les procédures utilisées pour déterminer les facteurs appropriés pour ces corrections. Les exigences pour la mesure I-V des dispositifs photovoltaïques sont données dans la CEI 60904-1. Les principales modifications techniques par rapport à l'édition précédente sont les suivantes: - extension de la procédure de transposition de l'édition 1 au changement d'éclairement pendant la mesure I-V; - ajout de deux nouvelles procédures de transposition; - révision de la procédure utilisée pour déterminer les coefficients de température pour inclure les modules PV; - définition d'une nouvelle procédure pour déterminer la résistance-série interne; - définition d'une nouvelle procédure pour déterminer le facteur de correction de la courbe.
Postopki za temperaturno in sevalno korekcijo izmerjenih karakteristik I-U fotonapetostnih naprav (IEC 60891:2009 (EQV))
Ta standard določa postopke, ki jim je treba slediti za temperaturno in sevalno korekcijo izmerjenih karakteristik I-U (tok-napetost) fotonapetostnih naprav. Prav tako določa postopke, uporabljene za določanje pomembnih faktorjev za te korekcije. Zahteve za meritve fotonapetostnih naprav I-U so podane v IEC 60904-1.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2011
1DGRPHãþD
SIST EN 60891:2001
Postopki za temperaturno in sevalno korekcijo izmerjenih karakteristik I-U
fotonapetostnih naprav (IEC 60891:2009 (EQV))
Procedures for temperature and irradiance corrections to measured I-V characteristics of
photovoltaic devices
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Procédures pour les corrections en fonction de la température et de l'éclairement à
appliquer aux caractéristiques I-V mesurées des dispositifs photovoltaïques
Ta slovenski standard je istoveten z: EN 60891:2010
ICS:
27.160 6RQþQDHQHUJLMD Solar energy engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 60891
NORME EUROPÉENNE
March 2010
EUROPÄISCHE NORM
ICS 27.160 Supersedes EN 60891:1994
English version
Photovoltaic devices -
Procedures for temperature and irradiance corrections
to measured I-V characteristics
(IEC 60891:2009)
Dispositifs photovoltaïques - Verfahren zur Umrechung
Procédures pour les corrections von gemessenen Strom-Spannungs-
en fonction de la température Kennlinien von photovoltaischen
et de l'éclairement à appliquer Bauelementen auf andere Temperaturen
aux caractéristiques I-V mesurées und Bestrahlungsstärken
(CEI 60891:2009) (IEC 60891:2009)
This European Standard was approved by CENELEC on 2010-03-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60891:2010 E
Foreword
The text of document 82/581/FDIS, future edition 2 of IEC 60891, prepared by IEC TC 82, Solar
photovoltaic energy systems, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 60891 on 2010-03-01.
This European Standard supersedes EN 60891:1994.
The main technical changes with regard to the EN 60891:1994 are as follows:
– extends existing 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.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2010-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60891:2009 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60904-5 NOTE Harmonized as EN 60904-5.
__________
- 3 - EN 60891:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60904-1 - Photovoltaic devices - EN 60904-1 -
Part 1: Measurement of photovoltaic
current-voltage characteristics
IEC 60904-2 - Photovoltaic devices - EN 60904-2 -
Part 2: Requirements for reference solar
devices
IEC 60904-7 - Photovoltaic devices - EN 60904-7 -
Part 7: Computation of the spectral mismatch
correction for measurements of photovoltaic
devices
IEC 60904-9 - Photovoltaic devices - EN 60904-9 -
Part 9: Solar simulator performance
requirements
IEC 60904-10 - Photovoltaic devices - EN 60904-10 -
Part 10: Methods of linearity measurement
IEC 60891 ®
Edition 2.0 2009-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Photovoltaic devices – Procedures for temperature and irradiance corrections to
measured I-V characteristics
Dispositifs photovoltaïques – Procédures pour les corrections en fonction de la
température et de l’éclairement à appliquer aux caractéristiques I-V mesurées
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 27.160 ISBN 978-2-88910-316-4
– 2 – 60891 © IEC:2009
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references .5
3 Correction procedures .5
3.1 General .5
3.2 Correction procedure 1.6
3.3 Correction procedure 2.7
3.4 Correction procedure 3.8
4 Determination of temperature coefficients.13
4.1 General .13
4.2 Apparatus.13
4.3 Procedure in natural sunlight.14
4.4 Procedure with a solar simulator .15
4.5 Calculation of temperature coefficients.15
5 Determination of internal series resistance R and R′ .15
S S
5.1 General .15
5.2 Correction procedure 1.16
5.3 Correction procedure 2.17
6 Determination of the curve correction factor κ and κ′ .18
6.1 General .18
6.2 Procedure .18
7 Reporting .19
Bibliography.21
Figure 1 – Example of the correction of the I-V characteristics by Equations (6) and (7) .10
Figure 2 – Schematic diagram of the relation of G and T which can be chosen in the
3 3
simultaneous correction for irradiance and temperature, for a fixed set of T , G , T ,
1 1 2
by Equations (8) and (9).11
and G
Figure 3 – Schematic diagram of the processes for correcting the I-V characteristics to
various ranges of irradiance and temperature based on three measured
characteristics .12
Figure 4 – Schematic diagram of the processes for correcting the I-V characteristics to
various ranges of irradiance and temperature based on four measured characteristics .13
Figure 5 – Positions for measuring the temperature of the test module behind the cells .14
Figure 6 – Determination of internal series resistance.16
Figure 7 – Determination of V irradiance correction factor and internal series
OC
resistance .18
Figure 8 – Determination of curve correction factor.19
60891 © IEC:2009 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PHOTOVOLTAIC DEVICES – PROCEDURES FOR TEMPERATURE AND
IRRADIANCE CORRECTIONS TO MEASURED I-V CHARACTERISTICS
FOREWORD
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60891 has been prepared by IEC technical committee 82: Solar
photovoltaic energy systems.
Thi
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