SIST EN IEC 62932-2-1:2021

Flow Battery Energy Systems for Stationary applications - Part 2-2: 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).

Flussbatterie-Energiesysteme für stationäre Anwendungen - Teil 2-1: Allgemeine Leistungsanforderungen und Prüfverfahren

Systèmes de production d’énergie de batteries d’accumulateurs à circulation d’électrolyte pour 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.

Energijski sistemi pretočnih baterij za vgrajeno opremo - 2-2. del: Preskušanje splošnih zahtev in preskusnih metod

General Information

• Status: Published
• Publication Date: 21-Jan-2021
• ICS: 29.220.99 - Other cells and batteries
• Technical Committee: ISCB - Secondary cells and batteries
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-Jan-2021
• Due Date: 19-Mar-2021
• Completion Date: 22-Jan-2021
• Ref Project: EN IEC 62932-2-1:2020 - Flow battery energy systems for stationary applications - Part 2-1: Performance general requirements and test methods

Overview

EN IEC 62932-2-1:2020 (CLC adoption of IEC 62932-2-1:2020) defines performance verification methods and general requirements for flow battery energy systems (FBES) and flow battery systems (FBS) used in stationary applications. It establishes test methods to verify rated power, rated energy, energy efficiency and maximum input/output powers for systems intended to remain in fixed locations. The standard explicitly excludes electromagnetic compatibility (EMC) testing and defers safety requirements to IEC 62932-2-2.

Key topics and technical requirements

• Scope and applicability
  • Applies only to stationary FBES/FBS (not portable or frequently moved systems).
  • Covers the FBES domain including FBS, power conversion system (PCS), battery management/support systems (BMS/BSS) and auxiliary supplies.
• General requirements
  • Systems must withstand mechanical stresses, vibrations and shocks during transport, handling and use.
  • Manufacturers must supply documentation for transportation, installation, commissioning, operation, maintenance and disposal.
  • Systems shall be characterized by performance parameters (rated power/energy, efficiency, maximum input/output powers).
• Test methods (major procedures)
  • Determination of energy at a constant power
  • Determination of maximum deliverable output power
  • Determination of maximum receivable input power
  • Determination of energy efficiency at constant power
  • Determination of cycle life
  • Annex A: informative guidance on testing discharge power versus energy or efficiency
• Measurement and test conditions
  • Voltage, current and electric energy instruments: accuracy class 1% or better
  • Temperature measurement: resolution 0.5 K, accuracy ±1 K or better
  • Time measurement: instruments with 1 s resolution
  • Definitions and test configurations include Point of Connection (POC), Point of Measurement (POM), Test Object Unit (TOU), and interconnection cases

Applications and practical value

• Use this standard to:
  • Verify manufacturer performance claims for stationary flow battery energy systems
  • Provide consistent, comparable test results for procurement, commissioning and acceptance testing
  • Support system selection and sizing for grid services, renewable energy storage, microgrids and commercial/industrial energy management
• Practical stakeholders:
  • Manufacturers and test labs performing performance verification and type testing
  • System integrators, EPC contractors and asset owners evaluating FBES performance
  • Regulators and procurement teams specifying acceptance criteria for stationary energy storage

Related standards

• IEC 62932-1 - Terminology and general aspects (referenced for terms)
• IEC 62932-2-2 - Safety requirements (covers safety testing)
• IEC 61427-2 - Secondary cells and batteries for renewable energy storage (on-grid test methods)

Keywords: flow battery energy systems, FBES, flow battery, test methods, performance requirements, EN IEC 62932-2-1:2020, stationary battery systems, energy efficiency, rated power, cycle life.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2021
Energijski sistemi pretočnih baterij za vgrajeno opremo - 2-2. del: Preskušanje
splošnih zahtev in preskusnih metod
Flow Battery Energy Systems for Stationary applications - Part 2-2: Performance general
requirements and test methods
Ta slovenski standard je istoveten z: EN IEC 62932-2-1:2020
ICS:
29.220.99 Drugi členi in baterije Other cells and batteries
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62932-2-1

NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS 29.220.99
English Version
Flow battery energy systems for stationary applications - Part 2-
1: Performance general requirements and test methods
(IEC 62932-2-1:2020)
Systèmes de production d'énergie de batteries Flussbatterie-Energiesysteme für stationäre Anwendungen
d'accumulateurs à circulation d'électrolyte pour applications - Teil 2-1: Allgemeine Leistungsanforderungen und
stationnaires - Partie 2-1: Exigences générales de Prüfverfahren
performances et méthodes d'essai (IEC 62932-2-1:2020)
(IEC 62932-2-1:2020)
This European Standard was approved by CENELEC on 2020-03-24. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62932-2-1:2020 E

European foreword
The text of document 21/1028/FDIS, future edition 1 of IEC 62932-2-1, prepared by IEC/TC 21
"Secondary cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62932-2-1:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-12-24
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-03-24
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC 62932-2-1:2020 was approved by CENELEC as a
European Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 61427-2 - Secondary cells and batteries for renewable EN 61427-2 -
energy storage - General requirements and
methods of test - Part 2: On-grid applications
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 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

IEC 62932-2-1:2020 © IEC 2020 – 3 –
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.
IEC 62932-2-1:2020 © IEC 2020 – 5 –
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 Abbreviated terms
BMS battery management system
BSS battery support system
FBES flow battery energy system
FBS flow battery system
PCS power conversion system
POC point of connection
POM point of measurement
TOU test object unit
IEC 62932-2-1:2020 © IEC 2020 – 7 –
4 General requirements
The FBES or FBS shall be designed to withstand mechanical stresses, vibrations and shocks
during transportation, handling and use.
The manufacturer shall provide documentation for transportation, installation, commissioning,
operation, maintenance, and disposal of the FBES or FBS.
The FBES or FBS shall be characterized by appropriate performance parameters, including
rated power, rated energy, rated energy efficiency, maximum output and input powers. More
information, such as energy or energy efficiency at different power levels (see Annex A), will
help the user know and use the FBES or FBS better.
Safety related
...