IEC 62933-2-1
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical energy storage (EES) systems –
Part 2-1: Unit parameters and testing methods – General specification
Systèmes de stockage de l'énergie électrique (EES) –
Partie 2-1: Paramètres unitaires et méthodes d'essai – Spécifications générales
IEC 62933-2-1:2017-12(en-fr)
®
colour
inside
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2017 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 IEC's 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 reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.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
The 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
bibliographical 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 number, 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 by email.
Electropedia - www.electropedia.org
The world's leading online dictionary of electronic and
electrical terms containing 20 000 terms and definitions in
English and French, with equivalent terms in 16 additional
languages. Also known as the International Electrotechnical
Vocabulary (IEV) online.
IEC Glossary - std.iec.ch/glossary
65 000 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
CISPR.
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: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Catalogue IEC - webstore.iec.ch/catalogue
Application autonome pour consulter tous les renseignements
bibliographiques sur les Normes internationales,
Spécifications techniques, Rapports techniques et autres
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
Android et iPad.
Recherche de publications IEC - www.iec.ch/searchpub
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte,
comité d’études,…). Elle donne aussi des informations sur les
projets et les publications remplacées ou retirées.
IEC Just Published - webstore.iec.ch/justpublished
Restez informé sur les nouvelles publications IEC. Just
Published détaille 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 électroniques et
électriques. Il contient 20 000 termes et définitions en anglais
et en français, ainsi que les termes équivalents dans 16
langues additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Glossaire IEC - std.iec.ch/glossary
65 000 entrées terminologiques électrotechniques, en anglais
et en français, extraites des articles Termes et Définitions des
publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
CISPR de l'IEC.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 62933-2-1
Edition 1.0 2017-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical energy storage (EES) systems –
Part 2-1: Unit parameters and testing methods – General specification
Systèmes de stockage de l'énergie électrique (EES) –
Partie 2-1: Paramètres unitaires et méthodes d'essai – Spécifications générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.020.30
ISBN 978-2-8322-5146-1
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
®
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
colour
inside
– 2 – IEC 62933-2-1:2017 © IEC 2017
CONTENTS
FOREWORD ........................................................................................................................... 5
1 Scope .............................................................................................................................. 7
2 Normative references ...................................................................................................... 7
3 Terms, definitions, abbreviated terms and symbols .......................................................... 7
3.1 Terms and definitions .............................................................................................. 7
3.2 Abbreviated terms ................................................................................................... 8
3.3 Symbols .................................................................................................................. 8
4 Classification of EES system ........................................................................................... 8
4.1 General ................................................................................................................... 8
4.2 Categorizing the application of EES system ............................................................ 9
4.3 Class A applications ............................................................................................... 9
4.3.1 Frequency regulation ....................................................................................... 9
4.3.2 Fluctuation reduction ....................................................................................... 9
4.3.3 Voltage regulation ........................................................................................... 9
4.4 Class B – Peak shaving/peak shifting .................................................................... 10
4.5 Class C – Back-up power ...................................................................................... 10
5 Unit parameters ............................................................................................................. 10
5.1 General ................................................................................................................. 10
5.1.1 Overview ....................................................................................................... 10
5.1.2 Reference environmental conditions .............................................................. 10
5.1.3 Standard testing conditions ........................................................................... 11
5.1.4 Typical architecture ....................................................................................... 11
5.2 List of unit parameters .......................................................................................... 12
5.2.1 Nominal energy capacity ................................................................................ 12
5.2.2 Input and output power rating ........................................................................ 12
5.2.3 Roundtrip efficiency ....................................................................................... 14
5.2.4 Expected service life ...................................................................................... 15
5.2.5 System response ........................................................................................... 15
5.2.6 Auxiliary power consumption ......................................................................... 16
5.2.7 Self- discharge of EES system ....................................................................... 17
5.2.8 Rated voltage range ...................................................................................... 17
5.2.9 Rated frequency range .................................................................................. 17
6 Testing methods and procedures ................................................................................... 17
6.1 General ................................................................................................................. 17
6.2 Parameter test ...................................................................................................... 18
6.2.1 Actual energy capacity test ............................................................................ 18
6.2.2 Input and output power rating test.................................................................. 19
6.2.3 Roundtrip efficiency test ................................................................................ 20
6.2.4 Expected service life test ............................................................................... 21
6.2.5 System response test, step response time and ramp rate .............................. 21
6.2.6 Auxiliary power consumption test ................................................................... 24
6.2.7 Self-discharge of EES system test ................................................................. 24
6.2.8 Rated voltage and frequency range test ......................................................... 25
6.3 Performance test .................................................................................................. 25
6.3.1 General ......................................................................................................... 25
6.3.2 Performance test for class A applications ...................................................... 26
IEC 62933-2-1:2017 © IEC 2017 – 3 –
6.3.3
Performance test for class B applications ...................................................... 26
6.3.4 Performance test for Class C applications ..................................................... 27
6.4 System implementation test .................................................................................. 27
6.4.1 Visual inspection ........................................................................................... 27
6.4.2 Continuity and validity of conductors .............................................................. 28
6.4.3 Earthing test .................................................................................................. 28
6.4.4 Insulation test ................................................................................................ 28
6.4.5 Protective and switching device test .............................................................. 28
6.4.6 Equipment and basic function test ................................................................. 29
6.4.7 Grid connection compatibility test .................................................................. 29
6.4.8 Available energy test ..................................................................................... 30
6.4.9 EMC immunity test ......................................................................................... 30
Annex A (informative) Duty cycle for efficiency test .............................................................. 31
A.1 General ................................................................................................................. 31
A.2 Class A application duty cycle ............................................................................... 31
A.2.1 General ......................................................................................................... 31
A.2.2 Duty cycle ...................................................................................................... 31
A.3 Class B application duty cycles ............................................................................. 32
A.3.1 General ......................................................................................................... 32
A.3.2 Duty cycle ...................................................................................................... 32
Annex B (informative) Fluctuation reduction test .................................................................. 33
B.1 General ................................................................................................................. 33
B.2 Fluctuation reduction test ...................................................................................... 33
Annex C (informative) Back-to-back test method for EES system ......................................... 35
C.1 Back-to-back test without grid interconnection ...................................................... 35
C.2 Back-to-back test with grid interconnection ........................................................... 36
Bibliography .......................................................................................................................... 37
Figure 1 – Example of classification of EES systems .............................................................. 9
Figure 2 – Typical architecture of EES system ...................................................................... 12
Figure 3 – Optional architecture of EES system .................................................................... 12
Figure 4 – Sign convention of active power and reactive power ............................................ 14
Figure 5 – Step response time and ramp rate of EES system ................................................ 16
Figure 6 – Typical testing points for apparent power ............................................................. 20
Figure 7 – System response test ........................................................................................... 23
Figure A.1 – Class A application duty cycle ........................................................................... 31
Figure A.2 – Class B application duty cycles ......................................................................... 32
Figure B.1 – Power stabilization test ..................................................................................... 33
Figure B.2 – Report of stabilization test ................................................................................ 34
Figure C.1 – Back-to-back test configuration (EESS module type) ........................................ 35
Figure C.2 – Back-to-back test configuration (AC/DC/AC converter type) .............................. 36
Figure C.3 – Back-to-back test configuration (EESS module type) ........................................ 36
