EN 61427-2:2015/FprA1:2023

SLOVENSKI STANDARD
oSIST prEN IEC 61427-2:2023
01-junij-2023
Sekundarni členi in baterije za shranjevanje obnovljive energije - Splošne zahteve
in preskusne metode - 2. del: Omrežne izvedbe
Secondary cells and batteries for renewable energy storage - General requirements and
methods of test - Part 2: On-grid applications
Wiederaufladbare Zellen und Batterien für die Speicherung erneuerbarer Energien -
Allgemeine Anforderungen und Prüfverfahren - Teil 2: Netzgekoppelte Anwendungen
Accumulateurs pour le stockage de l'énergie renouvelable - Exigences générales et
méthodes d'essais - Partie 2: Applications en réseau
Ta slovenski standard je istoveten z: prEN IEC 61427-2:2023
ICS:
27.160 Sončna energija Solar energy engineering
29.220.20 Kislinski sekundarni členi in Acid secondary cells and
baterije batteries
oSIST prEN IEC 61427-2:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN IEC 61427-2:2023

---------------------- Page: 2 ----------------------
oSIST prEN IEC 61427-2:2023
21/1166/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61427-2 ED1/AMD1*
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-04-21 2023-07-14
SUPERSEDES DOCUMENTS:
21/1159/CD, 21/1165/CC

IEC TC 21 : SECONDARY CELLS AND BATTERIES
SECRETARIAT: SECRETARY:
France Mr Yves BOUDOU
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 21A,TC 82,TC 88,TC 120
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of
• any relevant patent rights of which they are aware and to provide supporting documentation ,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are remin ded
that the enquiry stage is the final stage for submitting "in some countries" clauses. See AC/22/2007.

TITLE:
Secondary cells and batteries for renewable energy storage - General requirements and methods of
test - Part 2: On-grid applications

PROPOSED STABILITY DATE: 2027

NOTE FROM TC/SC OFFICERS:
*Please be informed that the project was erroneously registered as an ED2 instead of an Amendment 1 to
ED1. Please note that the project number has been updated accordingly.
Copyright © 2023 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download
this electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee
positions. You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose
without permission in writing from IEC.

---------------------- Page: 3 ----------------------
oSIST prEN IEC 61427-2:2023
-2- 21/1166/CDV

1 IEC CDV for 61427-2: Amendment 1. © IEC 2023
2
3 Text to be added at the end of clause 6.1 in the main body of the standard.
4
5 6 Battery endurance
6
7 6.1 General
8 to be added at end of clause 6.1
9
10 Since the publication of IEC 61427-2 in 2015, details of a complex pattern of energy exchange in frequency-
11 regulation duty, at 4 s intervals and over a 24 h period, has been published in the PNNL-22010 Rev 2/ SAND
12 2016-3078 R Report.
13
14 In Annex B (informative) details of this energy exchange profile are made available for evaluating, if useful, the
15 service-induced decay of battery performance also with a more randomized usage pattern compared to that
16 offered by the symmetric 6.2 profile.
17
18 Text to be added after Annex A
19 Annex B
20 (Informative)
21
22 B.1 Introduction
23
24 The batteries in on-grid electrical energy storage (EES) applications provide and accept the energy needed to
25 maintain the mains frequency within specified limits. This exchange of energy results in multiple charge and
26 discharge events per hour in the electrochemically active masses of the battery. The order, intensity and
27 duration of these events influences the stability and activity of the involved active mass structures and hence
28 the endurance of the batteries.
29
30 This additional test procedure for evaluating battery performance under frequency-regulation service, is based
31 on data acquired by actual monitoring of a regional transmission organizatio
...