IEC 62932-2-1:2020
(Main)Flow battery energy systems for stationary applications - Part 2-1: Performance general requirements and test methods
Flow battery energy systems for stationary applications - Part 2-1: Performance general requirements and test methods
IEC 62932-2-1:2020 specifies methods of test and requirements for the flow battery system (FBS) and the flow battery energy system (FBES) for the verification of their performances. This document is applicable to FBES or FBS which are designed and used for service in stationary locations (i.e. not generally to be moved from place to place). This document does not cover testing of the system for electromagnetic compatibility (EMC).
Systèmes de production d'énergie à batteries d'accumulateurs à circulation d'électrolyte pour les applications stationnaires - Partie 2-1: Exigences générales de performances et méthodes d’essai
L’IEC 62932-2-1:2020 spécifie les méthodes d’essai et les exigences applicables au système de batterie d’accumulateur à circulation d’électrolyte (FBS) et au système de production d’énergie à batterie d’accumulateur à circulation d’électrolyte (FBES) pour la vérification de leurs performances.
Le présent document s’applique au FBES ou au FBS conçu et utilisé sur des sites stationnaires (c’est-à-dire généralement non destinés à être déplacés d’un lieu à un autre).
Le présent document ne couvre pas les essais de compatibilité électromagnétique (CEM) du FBES ou du FBS.
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IEC 62932-2-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
Flow battery energy systems for stationary applications –
Part 2-1: Performance general requirements and test methods
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
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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 corrigendum or an amendment might have been published.
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
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and withdrawn publications. Also known as the International Electrotechnical Vocabulary
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IEC 62932-2-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
Flow battery energy systems for stationary applications –
Part 2-1: Performance general requirements and test methods
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.220.99 ISBN 978-2-8322-7853-6
– 2 – IEC 62932-2-1:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 6
4 General requirements . 7
5 General test conditions . 7
5.1 Accuracy of measuring instruments . 7
5.1.1 Voltage measurement . 7
5.1.2 Current measurement . 7
5.1.3 Electric energy measurement . 7
5.1.4 Temperature measurement . 7
5.1.5 Time measurement . 7
5.2 Ambient temperature. 7
5.3 Point of connection (POC) and point of measurement (POM) . 8
5.4 Test object . 9
5.5 Test object unit (TOU) selection . 9
6 Test methods . 9
6.1 Determination of energy at a constant power . 9
6.1.1 General . 9
6.1.2 Test procedures . 9
6.2 Determination of maximum deliverable output power . 10
6.2.1 General . 10
6.2.2 Test procedures . 10
6.3 Determination of maximum receivable input power . 11
6.3.1 General . 11
6.3.2 Test procedures . 11
6.4 Determination of energy efficiency at a constant power level . 12
6.4.1 General . 12
6.4.2 Test procedures . 12
6.5 Determination of cycle life . 13
Annex A (informative) Testing of discharge power vs energy or energy efficiency . 14
Figure 1 – Flow battery energy system . 5
Figure 2 – POM/POC interconnection cases a), b), c) . 8
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 2-1: Performance general requirements and test methods
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical 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 Specifications, 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. International, 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 decisions 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 international 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 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 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 certification 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, property 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 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 any or all such patent rights.
International Standard IEC 62932-2-1 has been prepared by IEC technical committee 21:
Secondary cells and batteries, in collaboration with IEC technical committee 105: Fuel cell
technologies.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1028/FDIS 21/1036/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62932 series, published under the general title Flow battery energy
systems for stationary applications, can be found on the IEC website.
– 4 – IEC 62932-2-1:2020 © IEC 2020
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
A flow battery system (FBS) can be utilized as a main part of a flow battery energy system
(FBES). Such an FBES can consist of:
– a flow battery system,
– a power conversion system,
– other equipment and surroundings.
The FBES is connected to the external power input or output via a point of connection (POC).
This document includes the domain of the FBES, as shown in Figure 1. Auxiliary energy to the
battery management system (BMS), battery support system (BSS), and power conversion
system (PCS) may be supplied by one of the following:
– direct connection to the external power source;
– the internal power source of the FBES or FBS itself.
Figure 1 – Flow battery energy system
– 6 – IEC 62932-2-1:2020 © IEC 2020
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 2-1: Performance general requirements and test methods
1 Scope
This part of IEC 62932 specifies methods of test and requirements for the flow battery system
(FBS) and the flow battery energy system (FBES) for the verification of their performances.
This document is applicable to FBES or FBS which are designed and used for service in
stationary locations (i.e. not generally to be moved from place to place).
This document does not cover testing of the system for electromagnetic compatibility (EMC).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
IEC 62932-1, Flow battery energy systems for stationary applications – Part 1: Terminology and
general aspects
IEC 62932-2-2, Flow battery energy systems for stationary applications – Part 2-2: Safety
requirements
IEC 61427-2, Secondary cells and batteries for renewable energy storage – General
requirements and methods of test – Part 2: On-grid applications
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document the terms and definitions given in IEC 62932-1 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/.
• ISO Online browsing platform: available at http://www.iso.org/obp.
3.2 Abbrevia
...
IEC 62932-2-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Flow battery energy systems for stationary applications –
Part 2-1: Performance general requirements and test methods
Systèmes de production d’énergie à batteries d’accumulateurs à circulation
d’électrolyte pour les applications stationnaires –
Partie 2-1: Exigences générales de performances et méthodes d’essai
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.
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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 info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
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IEC 62932-2-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Flow battery energy systems for stationary applications –
Part 2-1: Performance general requirements and test methods
Systèmes de production d’énergie à batteries d’accumulateurs à circulation
d’électrolyte pour les applications stationnaires –
Partie 2-1: Exigences générales de performances et méthodes d’essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.99 ISBN 978-2-8322-8537-4
– 2 – IEC 62932-2-1:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 6
4 General requirements . 7
5 General test conditions . 7
5.1 Accuracy of measuring instruments . 7
5.1.1 Voltage measurement . 7
5.1.2 Current measurement . 7
5.1.3 Electric energy measurement . 7
5.1.4 Temperature measurement . 7
5.1.5 Time measurement . 7
5.2 Ambient temperature. 7
5.3 Point of connection (POC) and point of measurement (POM) . 8
5.4 Test object . 9
5.5 Test object unit (TOU) selection . 9
6 Test methods . 9
6.1 Determination of energy at a constant power . 9
6.1.1 General . 9
6.1.2 Test procedures . 9
6.2 Determination of maximum deliverable output power . 10
6.2.1 General . 10
6.2.2 Test procedures . 10
6.3 Determination of maximum receivable input power . 11
6.3.1 General . 11
6.3.2 Test procedures . 11
6.4 Determination of energy efficiency at a constant power level . 12
6.4.1 General . 12
6.4.2 Test procedures . 12
6.5 Determination of cycle life . 13
Annex A (informative) Testing of discharge power vs energy or energy efficiency . 14
Figure 1 – Flow battery energy system . 5
Figure 2 – POM/POC interconnection cases a), b), c) . 8
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 2-1: Performance general requirements and test methods
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical 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 Specifications, 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. International, 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 decisions 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 international 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 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 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 certification 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, property 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 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 any or all such patent rights.
International Standard IEC 62932-2-1 has been prepared by IEC technical committee 21:
Secondary cells and batteries, in collaboration with IEC technical committee 105: Fuel cell
technologies.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1028/FDIS 21/1036/RVD
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 62932 series, published under the general title Flow battery energy
systems for stationary applications, can be found on the IEC website.
----
...
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