IEC 62501:2024
(Main)Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) power transmission - Electrical testing
IEC 62501:2024 applies to self-commutated converter valves, for use in a three-phase bridge voltage sourced converter (VSC) for high voltage DC power transmission or as part of a back-to-back link, and to dynamic braking valves. It is restricted to electrical type and production tests. This document can be used as a guide for testing of high-voltage VSC valves used in energy storage systems (ESS). The tests specified in this document are based on air insulated valves. The test requirements and acceptance criteria can be used for guidance to specify the electrical type and production tests of other types of valves. This edition includes the following significant technical changes with respect to the previous edition:
a) Conditions for use of evidence in lieu are inserted as a new Table 1;
b) Test parameters for valve support DC voltage test, 7.3.2, and MVU DC voltage test, 8.4.1, updated;
c) AC-DC voltage test between valve terminals, Clause 9, is restructured and alternative tests, by individual AC and DC voltage tests, added in 9.4.2;
d) Partial discharge test in routine test program is removed;
e) More information on valve component fault tolerance, Annex B, is added;
f) Valve losses determination is added as Annex C.
Valves à convertisseur de source de tension (VSC) pour le transport d'énergie en courant continu à haute tension (CCHT) - Essais électriques
L'IEC 62501:2024 s'applique aux valves à convertisseur auto-commuté, conçues pour être utilisées dans un convertisseur de source de tension (VSC) en pont triphasé pour le transport d'énergie en courant continu à haute tension ou dans une liaison dos-à-dos, ainsi qu'aux valves à freinage dynamique. Elle est limitée aux essais de type électriques et de série. Le présent document peut servir de guide pour les essais des valves à VSC à haute tension utilisées dans les systèmes de stockage d'énergie (ESS). Les essais spécifiés dans le présent document sont basés sur des valves isolées par l'air. Les exigences d'essai et les critères d'acceptation peuvent servir de guide pour spécifier les essais de type électriques et de série d'autres types de valves. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) un nouveau tableau relatif aux conditions d'utilisation de la substitution de preuve (Tableau 1) a été inséré;
b) les paramètres d'essai relatifs à l'essai de support de valve sous tension continue (7.3.2) et à l'essai de MVU sous tension continue (8.4.1) ont été mis à jour;
c) l'Article 9 concernant l'essai sous tension alternative-continue entre les bornes de valve a été réorganisé et des variantes ont été ajoutées en 9.4.2 pour les essais individuels sous tension alternative et continue;
d) l'essai de décharge partielle a été supprimé du programme des essais individuels de série;
e) des informations complémentaires relatives à la tolérance aux pannes des composants de valve ont été ajoutées à l'Annexe B;
f) la détermination des pertes de valve a été ajoutée à l'Annexe C.
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IEC 62501 ®
Edition 2.0 2024-04
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC)
power transmission – Electrical testing
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 62501 ®
Edition 2.0 2024-04
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC)
power transmission – Electrical testing
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.200, 29.240.99 ISBN 978-2-8322-8751-4
– 2 – IEC 62501:2024 CMV © IEC 2024
CONTENTS
FOREWORD .5
1 Scope .7
2 Normative references .7
3 Terms and definitions .7
3.1 Insulation coordination terms .8
3.2 Power semiconductor terms .8
3.3 Operating states of converter .8
3.4 VSC construction terms .9
3.5 Valve structure terms . 10
4 General requirements . 11
4.1 Guidelines for the performance of type tests . 11
4.1.1 Evidence in lieu . 11
4.1.2 Selection of test object . 12
4.1.3 Test procedure . 12
4.1.4 Ambient temperature for testing . 12
4.1.5 Frequency for testing . 12
4.1.6 Test reports . 12
4.1.7 Conditions to be considered in determination of type test parameters . 13
4.2 Atmospheric correction factor . 13
4.3 Treatment of redundancy . 13
4.3.1 Operational tests . 13
4.3.2 Dielectric tests . 13
4.4 Criteria for successful type testing. 14
4.4.1 General . 14
4.4.2 Criteria applicable to valve levels . 14
4.4.3 Criteria applicable to the valve as a whole . 15
5 List of type tests. 15
6 Operational tests . 16
6.1 Purpose of tests . 16
6.2 Test object . 16
6.3 Test circuit . 17
6.4 Maximum continuous operating duty test . 17
6.5 Maximum temporary over-load operating duty test . 18
6.6 Minimum DC voltage test . 18
7 Dielectric tests on valve support structure . 19
7.1 Purpose of tests . 19
7.2 Test object . 19
7.3 Test requirements . 20
7.3.1 General . 20
7.3.2 Valve support DC voltage test . 20
7.3.3 Valve support AC voltage test . 21
7.3.4 Valve support switching impulse test . 21
7.3.5 Valve support lightning impulse test . 22
8 Dielectric tests on multiple valve unit . 22
8.1 General . 22
8.2 Purpose of tests . 22
8.3 Test object . 22
8.4 Test requirements . 22
8.4.1 MVU DC voltage test to earth . 22
8.4.2 MVU AC voltage test . 23
8.4.3 MVU switching impulse test . 24
8.4.4 MVU lightning impulse test. 25
9 Dielectric tests between valve terminals . 26
9.1 Purpose of the test . 26
9.2 Test object . 26
9.3 Test methods . 27
9.3.1 General . 27
9.3.2 Method one . 27
9.3.3 Method two . 28
9.4 Test requirements . 28
9.4.1 Valve Composite AC-DC voltage test . 28
9.4.2 Alternative tests (Method 2 only) . 31
9.4.3 Valve impulse tests (general) . 32
10 IGBT overcurrent turn-off test . 34
10.1 Purpose of test . 34
10.2 Test object . 34
10.3 Test requirements . 34
11 Short-circuit current test . 35
11.1 Purpose of tests . 35
11.2 Test object . 36
11.3 Test requirements . 36
12 Tests for valve insensitivity to electromagnetic disturbance . 36
12.1 Purpose of tests . 36
12.2 Test object . 37
12.3 Test requirements . 37
12.3.1 General . 37
12.3.2 Approach one . 37
12.3.3 Approach two . 37
12.3.4 Acceptance criteria . 37
13 Tests for dynamic braking valves . 38
14 Production tests . 38
14.1 General . 38
14.2 Purpose of tests . 38
14.3 Test object . 38
14.4 Test requirements . 39
14.5 Production test objectives . 39
14.5.1 Visual inspection . 39
14.5.2 Connection check . 39
14.5.3 Voltage-grading circuit check . 39
14.5.4 Control, protection and monitoring circuit checks . 39
14.5.5 Voltage withstand check . 39
13.4.6 Partial discharge tests .
14.5.6 Turn-on / turn-off check . 40
14.5.7 Pressure test . 40
– 4 – IEC 62501:2024 CMV © IEC 2024
15 Presentation of type test results . 40
Annex A (informative) Overview of VSC converters in HVDC power transmission . 41
A.1 General .
...
IEC 62501 ®
Edition 2.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC)
power transmission – Electrical testing
Valves à convertisseur de source de tension (VSC) pour le transport d'énergie
en courant continu à haute tension (CCHT) – Essais électriques
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 Secretariat 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 IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.
IEC Just Published - webstore.iec.ch/justpublished
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Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.
Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
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further assistance, please contact the Customer Service
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IEC 62501 ®
Edition 2.0 2024-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Voltage sourced converter (VSC) valves for high-voltage direct current (HVDC)
power transmission – Electrical testing
Valves à convertisseur de source de tension (VSC) pour le transport d'énergie
en courant continu à haute tension (CCHT) – Essais électriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200, 29.240.99 ISBN 978-2-8322-8514-5
– 2 – IEC 62501:2024 © IEC 2024
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
3.1 Insulation coordination terms . 8
3.2 Power semiconductor terms . 8
3.3 Operating states of converter . 8
3.4 VSC construction terms . 9
3.5 Valve structure terms . 10
4 General requirements . 11
4.1 Guidelines for the performance of type tests . 11
4.1.1 Evidence in lieu . 11
4.1.2 Selection of test object . 12
4.1.3 Test procedure . 12
4.1.4 Ambient temperature for testing . 12
4.1.5 Frequency for testing . 12
4.1.6 Test reports . 12
4.1.7 Conditions to be considered in determination of type test parameters . 12
4.2 Atmospheric correction factor . 13
4.3 Treatment of redundancy . 13
4.3.1 Operational tests . 13
4.3.2 Dielectric tests . 13
4.4 Criteria for successful type testing . 14
4.4.1 General . 14
4.4.2 Criteria applicable to valve levels . 14
4.4.3 Criteria applicable to the valve as a whole . 15
5 List of type tests . 15
6 Operational tests . 16
6.1 Purpose of tests . 16
6.2 Test object . 16
6.3 Test circuit . 17
6.4 Maximum continuous operating duty test . 17
6.5 Maximum temporary over-load operating duty test . 18
6.6 Minimum DC voltage test . 18
7 Dielectric tests on valve support structure . 19
7.1 Purpose of tests . 19
7.2 Test object . 19
7.3 Test requirements . 19
7.3.1 General . 19
7.3.2 Valve support DC voltage test. 19
7.3.3 Valve support AC voltage test . 20
7.3.4 Valve support switching impulse test . 21
7.3.5 Valve support lightning impulse test . 21
8 Dielectric tests on multiple valve unit . 22
8.1 General . 22
8.2 Purpose of tests . 22
8.3 Test object . 22
8.4 Test requirements . 22
8.4.1 MVU DC voltage test to earth . 22
8.4.2 MVU AC voltage test . 23
8.4.3 MVU switching impulse test . 24
8.4.4 MVU lightning impulse test . 25
9 Dielectric tests between valve terminals . 25
9.1 Purpose of the test . 25
9.2 Test object . 26
9.3 Test methods . 26
9.3.1 General . 26
9.3.2 Method one . 27
9.3.3 Method two . 27
9.4 Test requirements . 28
9.4.1 Composite AC-DC voltage test . 28
9.4.2 Alternative tests (Method 2 only) . 29
9.4.3 Valve impulse tests . 31
10 IGBT overcurrent turn-off test . 33
10.1 Purpose of test . 33
10.2 Test object . 33
10.3 Test requirements . 33
11 Short-circuit current test . 34
11.1 Purpose of tests . 34
11.2 Test object . 34
11.3 Test requirements .
...
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