IEC 61803:2020
(Main)Determination of power losses in high-voltage direct current (HVDC) converter stations with line-commutated converters
Determination of power losses in high-voltage direct current (HVDC) converter stations with line-commutated converters
IEC 61803:2020 applies to all line-commutated high-voltage direct current (HVDC) converter stations used for power exchange (power transmission or back-to-back installation) in utility systems. This document presumes the use of 12-pulse thyristor converters but can, with due care, also be used for 6-pulse thyristor converters. In some applications, synchronous compensators or static var compensators (SVC) may be connected to the AC bus of the HVDC converter station. The loss determination procedures for such equipment are not included in this document. This document presents a set of standard procedures for determining the total losses of an HVDC converter station. The procedures cover all parts, except as noted above, and address no-load operation and operating losses together with their methods of calculation which use, wherever possible, measured parameters. Converter station designs employing novel components or circuit configurations compared to the typical design assumed in this document, or designs equipped with unusual auxiliary circuits that could affect the losses, are assessed on their own merits. This edition includes the following significant technical changes with respect to the previous edition:
- to facilitate the application of this document and to ensure its quality remains consistent, 5.1.8 and 5.8 have been reviewed, taking into consideration that the present thyristor production technology provides considerably less thyristor parameters dispersion comparing with the situation in 1999 when the first edition of IEC 61803 was developed, and therefore the production records of thyristors can be used for the power losses calculation;
- the calculation of the total station load losses (cases D1 and D2 in Annex C) has been corrected.
Détermination des pertes en puissance dans les postes de conversion en courant continu à haute tension (CCHT) munis de convertisseurs commutés par la ligne
L'IEC 61803:2020 s'applique à tous les postes de conversion en courant continu à haute tension (CCHT), commutés par la ligne, et utilisés pour l'échange de puissance (transmission de puissance ou installation dos à dos) dans des systèmes de distribution d'énergie. Le présent document présuppose l'utilisation de convertisseurs à thyristors à 12 impulsions mais peut également, en prenant les précautions appropriées, s'appliquer à des convertisseurs à thyristors à 6 impulsions. Dans certaines applications, il est admis de connecter des compensateurs synchrones ou des compensateurs var statiques (CVS) au nœud à courant alternatif du poste de conversion en courant continu à haute tension (CCHT). Les procédures de détermination de pertes pour ce type de matériel ne figurent pas dans le présent document. Le présent document décrit un ensemble de procédures types permettant de déterminer l'ensemble des pertes d'un poste de conversion à CCHT. Les procédures s’appliquent à toutes les pièces, à l'exception de celles susmentionnées, et considèrent les pertes en fonctionnement à vide et les pertes en fonctionnement ainsi que leurs méthodes de calcul utilisant, dans la mesure du possible, des paramètres mesurés. Les conceptions de poste de conversion utilisant des composants ou des configurations de circuit originaux par rapport à la conception type prise pour hypothèse dans le présent document, ou des conceptions équipées de circuits de distribution d'énergie auxiliaires inhabituels susceptibles de modifier les pertes, sont évaluées selon leurs propres mérites. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- en vue de faciliter l’application de la norme sans en détériorer la qualité, 5.1.8 et 5.8 ont été revus en tenant compte du fait que la technologie de production de thyristors actuelle occasionne considérablement moins de dispersion dans ses paramètres par rapport à la situation de 1999, lorsque la première édition de l'IEC 61803 a été élaborée. Ainsi, les données enregistrées de production de thyristors peuvent être utilisées pour les calculs de pertes de puissance;
- le calcul des pertes de charge au poste totales (cas D1 et D2 à l’Annexe C) a été corrigé.
General Information
Relations
Buy Standard
Standards Content (Sample)
IEC 61803 ®
Edition 2.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Determination of power losses in high-voltage direct current (HVDC) converter
stations with line-commutated converters
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.
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.
IEC 61803 ®
Edition 2.0 2020-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Determination of power losses in high-voltage direct current (HVDC) converter
stations with line-commutated converters
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.200 ISBN 978-2-8322-8970-9
– 2 – IEC 61803:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols. 6
3.1 Terms and definitions . 7
3.2 Symbols . 8
4 Overview . 9
4.1 General . 9
4.2 Ambient conditions. 9
4.2.1 General . 9
4.2.2 Outdoor standard reference temperature . 9
4.2.3 Coolant standard reference temperature . 10
4.2.4 Standard reference air pressure . 10
4.3 Operating parameters . 10
5 Determination of equipment losses . 11
5.1 Thyristor valve losses . 11
5.1.1 General . 11
5.1.2 Thyristor conduction loss per valve . 11
5.1.3 Thyristor spreading loss per valve . 12
5.1.4 Other conduction losses per valve . 13
5.1.5 DC voltage-dependent loss per valve . 13
5.1.6 Damping loss per valve (resistor-dependent term) . 14
5.1.7 Damping loss per valve (change of capacitor energy term) . 15
5.1.8 Turn-off losses per valve . 15
5.1.9 Reactor loss per valve . 16
5.1.10 Total valve losses . 16
5.1.11 Temperature effects. 16
5.1.12 No-load operation loss per valve . 17
5.2 Converter transformer losses . 17
5.2.1 General . 17
5.2.2 No-load operation losses . 17
5.2.3 Operating losses. 17
5.2.4 Auxiliary power losses . 19
5.3 AC filter losses . 19
5.3.1 General . 19
5.3.2 AC filter capacitor losses . 19
5.3.3 AC filter reactor losses . 20
5.3.4 AC filter resistor losses . 20
5.3.5 Total AC filter losses . 20
5.4 Shunt capacitor bank losses . 20
5.5 Shunt reactor losses . 21
5.6 DC smoothing reactor losses . 21
5.7 DC filter losses . 22
5.7.1 General . 22
5.7.2 DC filter capacitor losses . 22
5.7.3 DC filter reactor losses . 22
5.7.4 DC filter resistor losses . 23
5.7.5 Total DC filter losses . 23
5.8 Auxiliaries and station service losses . 23
5.9 Radio interference/PLC Series filter losses . 24
5.10 Other equipment losses . 25
Annex A (normative informativee) Calculation of harmonic currents and voltages . 31
A.1 Harmonic currents in converter transformers . 31
A.2 Harmonic currents in the AC filters . 31
A.3 Harmonic voltages on the DC side . 32
A.4 DC side harmonic currents in the smoothing reactor . 32
Annex B (informative) Typical station losses . 33
Annex C (informative) HVDC converter station loss evaluation – An illustration . 34
C.1 General . 34
C.2 Loss evaluation under various cases . 35
Bibliography . 37
Figure 1 – Typical high-voltage direct current (HVDC) equipment for one pole (auxiliary
equipment is not shown) . 26
Figure 2 – Simplified three-phase diagram of an HVDC 12-pulse converter . 27
Figure 3 – Simplified equivalent circuit of a typical thyristor valve . 27
Figure 4 – Current and voltage waveforms of a valve operating in a 12-pulse converter
(commutation overshoots are not shown) . 28
Figure 5 – Thyristor on-state characteristic . 29
Figure 6 – Conduction current and voltage drop . 29
Figure 7 – Distribution of commutating inductance between L and L . 30
1 2
Figure 8 – Thyristor current during reverse recovery . 30
Table B.1 – Typical values of losses . 33
Table C.1 – Conditions for calculation of losses in case D1 . 36
Table C.2 – Conditions for calculation of losses in Case D2. . 36
– 4 – IEC 61803:2020 RLV © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DETERMINATION OF POWER LOSSES IN HIGH-VOLTAGE
DIRECT CURRENT (HVDC) CONVERTER STATIONS WITH
LINE-COMMUTATED CONVERTERS
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, empl
...
IEC 61803 ®
Edition 2.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Determination of power losses in high-voltage direct current (HVDC) converter
stations with line-commutated converters
Détermination des pertes en puissance dans les postes de conversion
en courant continu à haute tension (CCHT) munis de convertisseurs commutés
par la ligne
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 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.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - Electropedia - www.electropedia.org
webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au
La recherche avancée permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en
en utilisant différents critères (numéro de référence, texte, anglais et en français, ainsi que les termes équivalents dans
comité d’études,…). Elle donne aussi des informations sur les 16 langues additionnelles. Egalement appelé Vocabulaire
projets et les publications remplacées ou retirées. Electrotechnique International (IEV) en ligne.
IEC Just Published - webstore.iec.ch/justpublished Glossaire IEC - std.iec.ch/glossary
Restez informé sur les nouvelles publications IEC. Just 67 000 entrées terminologiques électrotechniques, en anglais
Published détaille les nouvelles publications parues. et en français, extraites des articles Termes et Définitions des
Disponible en ligne et une fois par mois par email. publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
Service Clients - webstore.iec.ch/csc CISPR de l'IEC.
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 61803 ®
Edition 2.0 2020-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Determination of power losses in high-voltage direct current (HVDC) converter
stations with line-commutated converters
Détermination des pertes en puissance dans les postes de conversion
en courant continu à haute tension (CCHT) munis de convertisseurs commutés
par la ligne
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200 ISBN 978-2-8322-8948-8
– 2 – IEC 61803:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols. 6
3.1 Terms and definitions . 7
3.2 Symbols . 8
4 Overview . 8
4.1 General . 8
4.2 Ambient conditions. 9
4.2.1 General . 9
4.2.2 Outdoor standard reference temperature . 9
4.2.3 Coolant standard reference temperature . 9
4.2.4 Standard reference air pressure . 10
4.3 Operating parameters . 10
5 Determination of equipment losses . 10
5.1 Thyristor valve losses . 10
5.1.1 General . 10
5.1.2 Thyristor conduction loss per valve . 11
5.1.3 Thyristor spreading loss per valve . 12
5.1.4 Other conduction losses per valve . 12
5.1.5 DC voltage-dependent loss per valve . 13
5.1.6 Damping loss per valve (resistor-dependent term) . 14
5.1.7 Damping loss per valve (change of capacitor energy term) . 14
5.1.8 Turn-off losses per valve . 15
5.1.9 Reactor loss per valve . 15
5.1.10 Total valve losses . 16
5.1.11 Temperature effects. 16
5.1.12 No-load operation loss per valve . 16
5.2 Converter transformer losses . 17
5.2.1 General . 17
5.2.2 No-load operation losses . 17
5.2.3 Operating losses. 17
5.2.4 Auxiliary power losses . 18
5.3 AC filter losses . 19
5.3.1 General . 19
5.3.2 AC filter capacitor losses . 19
5.3.3 AC filter reactor losses . 19
5.3.4 AC filter resistor losses . 20
5.3.5 Total AC filter losses . 20
5.4 Shunt capacitor bank losses . 20
5.5 Shunt reactor losses . 20
5.6 DC smoothing reactor losses . 21
5.7 DC filter losses . 21
5.7.1 General . 21
5.7.2 DC filter capacitor losses . 22
5.7.3 DC filter reactor losses . 22
5.7.4 DC filter resistor losses . 23
5.7.5 Total DC filter losses . 23
5.8 Auxiliaries and station service losses . 23
5.9 Series filter losses . 24
5.10 Other equipment losses . 25
Annex A (informative) Calculation of harmonic currents and voltages . 31
A.1 Harmonic currents in converter transformers . 31
A.2 Harmonic currents in the AC filters . 31
A.3 Harmonic voltages on the DC side . 32
A.4 DC side harmonic currents in the smoothing reactor . 32
Annex B (informative) Typical station losses . 33
Annex C (informative) HVDC converter station loss evaluation – An illustration . 34
C.1 General . 34
C.2 Loss evaluation under various cases . 35
Bibliography . 37
Figure 1 – Typical high-voltage direct current (HVDC) equipment for one pole . 26
Figure 2 – Simplified three-phase diagram of an HVDC 12-pulse converter . 27
Figure 3 – Simplified equivalent circuit of a typical thyristor valve . 27
Figure 4 – Current and voltage waveforms of a valve operating in a 12-pulse converter . 28
Figure 5 – Thyristor on-state characteristic . 29
Figure 6 – Conduction current and voltage drop . 29
Figure 7 – Distribution of commutating inductance between L and L . 30
1 2
Figure 8 – Thyristor current during reverse recovery . 30
Table B.1 – Typical values of losses . 33
Table C.1 – Conditions for calculation of losses in case D1 . 36
Table C.2 – Conditions for calculation of losses in Case D2. . 36
---------------------- Pa
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.