IEC 61829-2015 Photovoltaic (PV) array - On-site measurement of current-voltage characteristics《光伏 (PV) 阵列 电流电压特性的现场测量》.pdf

《IEC 61829-2015 Photovoltaic (PV) array - On-site measurement of current-voltage characteristics《光伏 (PV) 阵列 电流电压特性的现场测量》.pdf》由会员分享，可在线阅读，更多相关《IEC 61829-2015 Photovoltaic (PV) array - On-site measurement of current-voltage characteristics《光伏 (PV) 阵列 电流电压特性的现场测量》.pdf（38页珍藏版）》请在麦多课文档分享上搜索。

1、 IEC 61829 Edition 2.0 2015-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Photovoltaic (PV) array On-site measurement of current-voltage characteristics Champ de modules photovoltaques (PV) Mesurage sur site des caractristiques courant-tension IEC 61829:2015-10(en-fr) THIS PUBLICATION IS COPYRIGHT

2、PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or I

3、ECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. Droits de repro

4、duction rservs. Sauf indication contraire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lIEC ou du Comit national de lIEC du pays du dem

5、andeur. Si vous avez des questions sur le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41

6、 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications T

7、he technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographica

8、l information on IEC International Standards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference n

9、umber, text, technical committee,). It also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month

10、 by email. Electropedia - www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 15 additional languages. Also known as the International Electrotechnical Vocabular

11、y (IEV) online. IEC Glossary - std.iec.ch/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CI

12、SPR. IEC Customer Service Centre - webstore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotechnique Internationale (IEC) est la premire organisation mondiale

13、 qui labore et publie des Normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigend

14、um ou amendement peut avoir t publi. Catalogue IEC - webstore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes

15、 Android et iPad. Recherche de publications IEC - www.iec.ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. IEC J

16、ust Published - webstore.iec.ch/justpublished Restez inform sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes lectroniq

17、ues et lectriques. Il contient plus de 30 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans 15 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.iec.ch/glossary Plus de 60 000 entres terminolog

18、iques lectrotechniques, en anglais et en franais, extraites des articles Termes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des

19、commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 61829 Edition 2.0 2015-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Photovoltaic (PV) array On-site measurement of current-voltage characteristics Champ de modules photovoltaques (PV) Mesurage sur site

20、des caractristiques courant-tension INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 27.160 ISBN 978-2-8322-2966-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make

21、 sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 61829:2015 IEC 2015 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 4 Ap

22、paratus 7 4.1 Irradiance measurements in natural sunlight . 7 4.2 Module temperature measurements 8 4.3 Electrical measurements . 8 5 Measurement procedure 9 5.1 Choose and record appropriate conditions for measurement . 9 5.2 Clean the modules 9 5.3 Check for shading . 9 5.4 Confirm uniformity of i

23、rradiance over the test array . 10 5.5 Mount the reference device . 10 5.6 Prepare to measure the array temperature 10 5.7 Disconnect the array . 11 5.8 Connect the measurement system to the array to be measured 11 5.9 Record electrical data and measurement conditions 11 5.10 Record spectral data .

24、12 5.11 Typical and extreme module selection 12 6 Analysis . 13 6.1 Adjust the measured irradiance for any deviation from reference conditions 13 6.2 Compute the average temperature of the array under test . 13 6.3 Compute the junction temperature 14 6.4 Translate the measurement to the desired test

25、 condition . 14 6.5 Correct for soiling losses 14 7 Test report . 14 Annex A (informative) Reference values and reference device . 16 A.1 Reference test conditions (RTC) . 16 A.2 Standard test conditions (STC) . 16 A.3 Reference device 16 Bibliography 17 Figure 1 Examples of extreme and central modu

26、les . 13 IEC 61829:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PHOTOVOLTAIC (PV) ARRAY ON-SITE MEASUREMENT OF CURRENT-VOLTAGE CHARACTERISTICS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electr

27、otechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifica

28、tions, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. Internationa

29、l, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal de

30、cisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for int

31、ernational use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In

32、order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be

33、clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certificati

34、on bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, p

35、roperty damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited

36、in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying

37、any or all such patent rights. International Standard IEC 61829 has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. This second edition cancels and replaces the first edition published in 1995. This edition constitutes a technical revision. This edition includes the f

38、ollowing significant technical changes with respect to the previous edition: a) it addresses many outdated procedures; b) it accommodates commonly used commercial I-V curve tracers; c) it provides a more practical approach for addressing field uncertainties; d) it removes and replaces procedures wit

39、h references to other updated and pertinent standards, including the IEC 60904 series, and IEC 60891. 4 IEC 61829:2015 IEC 2015 The result is a much more practical and useful standard. The text of this standard is based on the following documents: FDIS Report on voting 82/1008/FDIS 82/1041/RVD Full

40、information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged un

41、til the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 61829:2015 IEC 2015 5 INTRODUCTION The performance of photov

42、oltaic (PV) systems over their decades-long life time is determined by comparing measured power production with the expected production as estimated from recorded weather conditions. Continuous measurements of system- or subsystem-level operating output can detect underperforming arrays but are not

43、well suited for tracking degradation with any accuracy, or for identifying the weaknesses or failure modes that may exist within the array. Field I-V curve measurements offer a practical method of in situ benchmarking or troubleshooting for modules, strings and arrays. This International Standard sp

44、ecifies methods and approaches for field I-V curve measurements and calculations, and includes guidance for addressing the uncertainties associated with measurement devices and array configurations. Consistent and proper application of I-V curve measurement procedures helps to ensure that a PV syste

45、ms performance is adequately characterized over time. 6 IEC 61829:2015 IEC 2015 PHOTOVOLTAIC (PV) ARRAY ON-SITE MEASUREMENT OF CURRENT-VOLTAGE CHARACTERISTICS 1 Scope This International Standard specifies procedures for on-site measurement of flat-plate photovoltaic (PV) array characteristics, the a

46、ccompanying meteorological conditions, and use of these for translating to standard test conditions (STC) or other selected conditions. Measurements of PV array current-voltage (I-V) characteristics under actual on-site conditions and their translation to reference test conditions (RTC) can provide:

47、 data for power rating or capacity testing; verification of installed array power performance relative to design specifications; detection of possible differences between on-site module characteristics and laboratory or factory measurements; detection of possible performance degradation of modules a

48、nd arrays with respect to on- site initial data; detection of possible module or array failures or poor performance. For a particular module, on-site measurements translated to STC can be directly compared with results previously obtained in a laboratory or factory for that module. Corrections for d

49、ifferences in the spectral or spatial response of the reference devices may need to be assessed as specified in IEC 60904. On-site array measurements are affected by diode, cable, and mismatch losses, soiling and shading, degradation due to aging, and other uncontrolled effects. Therefore, they are not expected to be equal to the product of the number of modules and the respective module data. If a PV array is formed with sub-a