EN 60700-2:2016

SLOVENSKI STANDARD
01-januar-2017
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Thyristor valves for high voltage direct current (HVDC) power transmission - Part 2:
Terminology (IEC 60700-2:2016)
Valves à thyristors pour le transport d'énergie en courant continu à haute tension
(CCHT) - Partie 2: Terminologie (IEC 60700-2:2016)
Ta slovenski standard je istoveten z: EN 60700-2:2016
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
QDSDMDQMH
31.080.20 Tiristorji Thyristors
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60700-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2016
ICS 29.200
English Version
Thyristor valves for high voltage direct current (HVDC) power
transmission - Part 2: Terminology
(IEC 60700-2:2016)
Valves à thyristors pour le transport d'énergie en courant Thyristorventile für Hochspannungsgleichstrom-
continu à haute tension (CCHT) - Partie 2: Terminologie Energieübertragung (HGÜ) - Teil 2: Terminologie
(IEC 60700-2:2016) (IEC 60700-2:2016)
This European Standard was approved by CENELEC on 2016-07-22. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60700-2:2016 E
European foreword
The text of document 22F/373/CDV, future edition 1 of IEC 60700-2, prepared by SC 22F “Power
electronics for electrical transmission and distribution systems” of IEC/TC 22 “Power electronic
systems and equipment” was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 60700-2:2016.
The following dates are fixed:
• latest date by which the document has to be (dop) 2017-05-25
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-11-25
• latest date by which the national
standards conflicting with the
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 [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60700-2:2016 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated :

IEC 60700-1 NOTE Harmonized as EN 60700-1.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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 60027 Series Letter symbols to be used in electrical - -
technology
IEC 60633 -  Terminology for high-voltage direct current EN 60633 -
(HVDC) transmission
IEC 60700-2 ®
Edition 1.0 2016-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Thyristor valves for high voltage direct current (HVDC) power transmission –

Part 2: Terminology
Valves à thyristors pour le transport d’énergie en courant continu à haute

tension (CCHT) –
Partie 2: Terminologie
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200 ISBN 978-2-8322-3474-7

– 2 – IEC 60700-2:2016 © IEC 2016
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Symbols and abbreviations . 5
3.1 General . 5
3.2 List of letter symbols . 5
3.3 List of abbreviations . 5
4 General terms related to converter circuits . 6
5 Converter performance . 6
6 Thyristor valve design . 6
7 Thyristor valve performance . 11
8 Thyristor valve voltages, currents and other parameters . 12
9 Thyristor valve control . 15
10 Thyristor valve protection . 16
Bibliography . 22

Figure 1 – Example of a converter unit . 17
Figure 2 – Commutation process at rectifier and inverter modes of operation . 18
Figure 3 – Illustrations of commutation in inverter operation . 19
Figure 4 – Typical valve voltage waveforms . 20
Figure 5 – An example of thyristor valve composition . 21

IEC 60700-2:2016 © IEC 2016 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
THYRISTOR VALVES FOR HIGH VOLTAGE
DIRECT CURRENT (HVDC) POWER TRANSMISSION –

Part 2: Terminology
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
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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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 60700-2 has been prepared by subcommittee 22F: Power
electronics for electrical transmission and distribution systems, of IEC technical committee 22:
Power electronic systems and equipment.
The text of this standard is based on the following documents:
CDV Report on voting
22F/373/CDV 22F/395A/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 60700-2:2016 © IEC 2016
A list of all parts in the IEC 60700 series, published under the general title Thyristor valves for
high voltage direct current (HVDC) power transmission, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IEC 60700-2:2016 © IEC 2016 – 5 –
THYRISTOR VALVES FOR HIGH VOLTAGE
DIRECT CURRENT (HVDC) POWER TRANSMISSION –

Part 2: Terminology
1 Scope
This part of IEC 60700 defines terms for thyristor valves for high-voltage direct current (HVDC)
power transmission with line commutated converters most commonly based on three-phase
bridge connections for the conversion from AC to DC and vice versa.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60027(all parts), Letter symbols to be used in electrical technology
IEC 60633, Terminology for high-voltage direct current (HVDC) transmission
3 Symbols and abbreviations
3.1 General
The lists in 3.2 and 3.3 cover only the most frequently used symbols. The lists of symbols of
the IEC 60027 series and IEC 60633 apply.
3.2 List of letter symbols
α (trigger/firing) delay angle
β (trigger/firing) advance angle
µ commutation overlap angle
γ extinction angle
3.3 List of abbreviations
The following abbreviations are always in capital lett
...