oSIST prEN IEC 62590-3-2:2025

Railway applications - Electronic power converters for fixed installations - Part 3-2: AC traction applications - Static frequency converter

Applications ferroviaires - Convertisseurs électroniques de puissance pour installations fixes - Partie 3-2: Applications de traction en courant alternatif - Convertisseur de fréquence statique

Železniške naprave - Elektronski elektroenergetski pretvornik za fiksne postroje - 3-2. del: Sistem vleke z izmenično napetostjo - Statični frekvenčni pretvornik

General Information

• Status: Not Published
• Public Enquiry End Date: 21-Aug-2025
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• ICS: 29.280 - Electric traction equipment
• Technical Committee: ŽEN - Electrical applications for railways
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 11-Jun-2025
• Due Date: 29-Oct-2025
• Completion Date: 23-Jul-2025
• Ref Project: prEN IEC 62590-3-2:2025 - Railway applications - Electronic power converters for fixed installations - Part 3-2: AC traction applications - Static frequency converter

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2025
Železniške naprave - Elektronski elektroenergetski pretvornik za fiksne postroje -
3-2. del: Sistem vleke z izmenično napetostjo - Statični frekvenčni pretvornik
Railway applications - Electronic power converters for fixed installations - Part 3-2: AC
traction applications - Static frequency converter
Applications ferroviaires - Convertisseurs électroniques de puissance pour installations
fixes - Partie 3-2: Applications de traction en courant alternatif - Convertisseur de
fréquence statique
Ta slovenski standard je istoveten z: prEN IEC 62590-3-2:2025
ICS:
29.200 Usmerniki. Pretvorniki. Rectifiers. Convertors.
Stabilizirano električno Stabilized power supply
napajanje
29.280 Električna vlečna oprema Electric traction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

9/3215/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62590-3-2 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2025-06-06 2025-08-29
SUPERSEDES DOCUMENTS:
9/3007/CD, 9/3042A/CC
IEC TC 9 : ELECTRICAL EQUIPMENT AND SYSTEMS FOR RAILWAYS
SECRETARIAT: SECRETARY:
France Mr Denis MIGLIANICO
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):

ASPECTS CONCERNED:
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.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries” clau ses to be
included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses. (SEE
AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Railway applications – Electronic power converters for fixed installations – Part 3-2: AC Traction
applications – Static frequency converter

PROPOSED STABILITY DATE: 2028
NOTE FROM TC/SC OFFICERS:
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.

– 2 – IEC CDV 62590-3-2 © IEC 2025
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions, and abbreviations . 9
3.1 Terms and definitions. 9
3.2 Abbreviations . 11
4 System configuration with SFC application . 12
4.1 General . 12
4.2 Components of an SFC . 13
5 Design and integration . 14
5.1 General . 14
5.2 Requirements to be indicated by the user . 15
5.2.1 General . 15
5.2.2 Process for ensuring network compatibility . 15
5.2.3 Specification of SFC parameters . 15
5.2.4 Interface to the electric traction power supply system . 16
5.2.5 Interface to the 3AC power network . 17
5.2.6 Specification of the simulation model . 18
5.3 To be indicated by the manufacturer . 18
5.4 Load requirements . 18
5.5 Operational behaviour of SFC . 19
5.5.1 General . 19
5.5.2 Operation modes . 20
5.5.3 Electrical behaviour at the electric traction power supply system or
railway transmission network side . 20
5.5.4 Electrical behaviour at the 3AC power network side . 22
6 Performance requirements . 22
6.1 General . 22
6.2 Losses . 22
6.3 Electromagnetic compatibility (EMC) . 23
6.4 Power Quality . 23
6.4.1 Criteria . 23
6.4.2 Harmonics . 23
6.4.3 Interference with other systems . 24
6.5 Protection functions . 24
6.6 Cooling . 24
6.7 Mechanical characteristics . 24
6.7.1 General . 24
6.7.2 Earthing . 24
6.7.3 Vibrations . 25
6.7.4 Environmental conditions . 25
6.7.5 Degree of protection . 25
6.8 Insulation coordination . 25
6.9 Rating plate . 25

IEC CDV 62590-3-2 © IEC 2025 – 3 –
7 Tests . 25
7.1 General requirements . 25
7.1.1 General . 25
7.1.2 Type test . 26
7.1.3 Routine test . 27
7.2 Test Items . 27
7.2.1 Visual inspection . 27
7.2.2 Test of accessory and auxiliary components . 27
7.2.3 Insulation test . 27
7.2.4 Functional tests . 27
7.2.5 Performance Tests . 28
7.2.6 Temperature-rise test . 28
7.2.7 Power loss determination. 28
7.2.8 Audible sound . 29
7.2.9 EMC tests . 29
7.2.10 Mechanical test . 29
Annex A (informative) Network configurations . 30
A.1 SFC connected to single-phase electric traction power supply system . 30
A.1.1 Purpose and function . 30
A.1.2 Network configurations . 30
A.2 SFC connected to railway transmission network . 34
A.2.1 Purpose and function . 34
A.2.2 Network configurations . 34
Annex B (informative) SFC control functions, examples . 38
B.1 General . 38
B.2 Additional operation modes . 38
B.3 Operation Sequences . 38
B.4 Examples of control function for the determination of steady-state set point
values . 39
B.4.1 General . 39
B.4.2 Constant voltage . 39
B.4.3 Constant reactive power or cos phi . 39
B.4.4 Constant active power . 39
B.4.5 U/I characteristic . 39
B.4.6 U/Q characteristic . 39
B.4.7 Ψ/P characteristic . 40
B.4.8 Synchronous-synchronous machine characteristic . 41
B.4.9 Transformer characteristic . 42
B.4.10 f/P characteristic . 43
B.5 Exchange of information for synchronized operation . 43
B.6 Examples of principles of closed-loop converter control . 44
Annex C (informative) Example of Reliability, Availability and Maintainability . 45
Annex D (informative) Example of simulation environment for SFC . 46
Annex E (informative) Back-to-back test . 47
Bibliography . 48

Figure 1 – Example applications of SFC in a railway transmission network and an
electric traction power supply system . 13

– 4 – IEC CDV 62590-3-2 © IEC 2025
Figure 2 – SFC components and interfaces . 14
Figure 3 – example P/Q diagram for defining the SFC operation range . 19
Figure A.1 – SFC in single source operation connected to an electric traction power
supply system . 31
Figure A.2 – Several converter substations connected to an electric traction power
supply system .
...