EN 62747-2014 en Terminology for voltage-sourced converters (VSC) for high-voltage direct current (HVDC) systems.pdf

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1、BSI Standards PublicationTerminology for voltage-sourced converters (VSC) for high-voltage direct current (HVDC) systemsBS EN 62747:2014BS EN 62747:2014Incorporating corrigendum February 2015BS EN 62747:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 62747:

2、2014. It is identical to IEC 62747:2014, incorporating corrigendum February 2015.The UK participation in its preparation was entrusted to Technical Committee PEL/22, Power electronics.A list of organizations represented on this committee can be obtained on request to its secretary.This publication d

3、oes not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 89799 3ICS 29.200; 29.240Compliance with a British Standard cannot confer immunity f

4、rom legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2014.Amendments/corrigenda issued since publicationDate Text affected31 March 2015 Implementation of IEC corrigendum February 2015. Modulation index equation in

5、subclause 8.11 updated.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 62747 September 2014 ICS 29.200; 29.240 English Version Terminology for voltage-sourced converters (VSC) for high-voltage direct current (HVDC) systems (IEC 62747:2014) Terminologie relative aux convertisseurs de source detensi

6、on (VSC) des systmes en courant continu hautetension (CCHT) (CEI 62747:2014) Terminologie fr Spannungszwischenkreis-Stromrichter(VSC) fr Hochspannungsgleichstrom(HG)-Systeme (IEC 62747:2014) This European Standard was approved by CENELEC on 2014-08-21. CENELEC members are bound to comply with the CE

7、N/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 Ce

8、ntre 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 sta

9、tus 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

10、, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation ElectrotechniqueEuropisches Komitee fr Elektrotechnische Normu

11、ng CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 62747:2014 E EN 62747:2014 - 2 - Foreword The text of document 22F/301/CDV, future edition 1 of IEC 62747, prep

12、ared 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 62747:2014. The following dates are fixed: latest date by which the document has

13、 to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2015-05-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-08-21 Attention is drawn to the possibility that some of the elements of

14、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 62747:2014 was approved by CENELEC as a European Standard without any modification. In the

15、official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60146-1-1 NOTE Harmonized as EN 60146-1-1. IEC 60146-2 NOTE Harmonized as EN 60146-2. IEC 60747 NOTE Harmonized in EN 60747 series. IEC 60633 NOTE Harmonized as EN 60633. IEC 62501 NOTE Harmoniz

16、ed as EN 62501. IEC 62751-1 NOTE Harmonized as EN 62751-1 1). IEC 62751-2 NOTE Harmonized as EN 62751-2 1). 1) To be published. BS EN 62747:2014EN 62747:2014 - 2 - Foreword The text of document 22F/301/CDV, future edition 1 of IEC 62747, prepared by SC 22F “Power electronics for electrical transmiss

17、ion 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 62747:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an

18、identical national standard or by endorsement (dop) 2015-05-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-08-21 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC

19、 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 62747:2014 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes ha

20、ve to be added for the standards indicated: IEC 60146-1-1 NOTE Harmonized as EN 60146-1-1. IEC 60146-2 NOTE Harmonized as EN 60146-2. IEC 60747 NOTE Harmonized in EN 60747 series. IEC 60633 NOTE Harmonized as EN 60633. IEC 62501 NOTE Harmonized as EN 62501. IEC 62751-1 NOTE Harmonized as EN 62751-1

21、1). IEC 62751-2 NOTE Harmonized as EN 62751-2 1). 1) To be published. BS EN 62747:2014- 3 - EN 62747:2014 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

22、 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

23、, 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 EN 60027 seri

24、es IEC 60617 - Graphical symbols for diagrams - - BS EN 62747:2014 2 IEC 62747:2014 IEC 2014 CONTENTS 1 Scope 5 2 Normative references. 5 3 Symbols and abbreviations 5 3.1 List of letter symbols . 5 3.2 List of subscripts . 6 3.3 List of abbreviations 7 4 Graphical symbols . 8 5 General terms relate

25、d to converter circuits . 9 6 VSC topologies 10 7 Converter units and valves . 10 8 Converter operating conditions. 16 9 HVDC systems and substations . 20 10 HVDC substation equipment 23 11 Modes of control 26 12 Control systems . 27 Bibliography . 30 Figure 1 Converter symbol identifications . 7 Fi

26、gure 2 Graphical symbols 8 Figure 3 Voltage-sourced converter unit . 11 Figure 4 Phase unit of the modular multi-level converter (MMC) in basic half-bridge, two-level arrangement, with submodules . 13 Figure 5 Phase unit of the cascaded two-level converter (CTL) in half-bridge form 14 Figure 6 Phaso

27、r diagram showing a.c. system voltage, converter a.c. voltage and converter a.c. current 18 Figure 7 Example of bipolar VSC transmission with earth return 21 Figure 8 VSC transmission with a symmetrical monopole illustrated with capacitive earthing on the d.c. side 22 Figure 9 VSC transmission with

28、an asymmetrical monopole with metallic return 22 Figure 10 VSC transmission with an asymmetrical monopole with earth return 22 Figure 11 Major components that may be found in a VSC substation . 25 Figure 12 Hierarchical structure of an HVDC control system . 29 BS EN 62747:2014 4 IEC 62747:2014 IEC 2

29、014 5 TERMINOLOGY FOR VOLTAGE-SOURCED CONVERTERS (VSC) FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS 1 Scope This International Standard defines terms for the subject of self-commutated voltage-sourced converters used for transmission of power by high voltage direct current (HVDC). The standard is

30、written mainly for the case of application of insulated gate bipolar transistors (IGBTs) in voltage sourced converters (VSC) but may also be used for guidance in the event that other types of semiconductor devices which can both be turned on and turned off by control action are used. Line-commutated

31、 and current-sourced converters for high-voltage direct current (HVDC) power transmission systems are specifically excluded from this standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.

32、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 60617, Graphical symbols for diagrams 3 Symbols and abbreviati

33、ons 3.1 List of letter symbols Essential terms and definitions necessary for the understanding of this standard are given here; other terminology is as per relevant parts of IEC 60747. The list covers only the most frequently used symbols (see Figure 1). IEC 60027 shall be used for a more complete l

34、ist of the symbols which have been adopted for static converters. See also other standards listed in the normative references and the bibliography. Uddirect voltage Udcconverter d.c. voltage Udpepole-to-earth direct voltage Udpppole-to-pole direct voltage UdppNrated pole-to-pole direct voltage UdpeN

35、rated pole-to-earth direct voltage ULline-to-line voltage on line side of interface transformer, r.m.s. value including harmonics BS EN 62747:2014 6 IEC 62747:2014 IEC 2014 ULeline-to-earth voltage on line side of interface transformer, r.m.s. value including harmonics ULNrated value of ULUvline-to-

36、line voltage on valve side of interface transformer, r.m.s. value including harmonics Uveline-to-earth voltage on valve side of interface transformer, r.m.s. value including harmonics Ucline-to-line converter voltage, r.m.s. value including harmonics NOTE Ucis equal to Uvminus the voltage drop acros

37、s the phase and valve reactors. However, Uchas only a clear meaning during balanced conditions (steady state). Uceline-to-earth converter voltage , r.m.s. value including harmonics Uvalvevoltage between terminals of a valve (any defined value) Iddirect current (any defined value) IdNrated direct cur

38、rent ILcurrent on line side of interface transformer, r.m.s. value including harmonics ILNrated value of ILIcurrent on valve side of interface transformer, r.m.s. value including harmonics Ialvecurrent through a valve 3.2 List of subscripts 0 (zero) at no load e earth p pole N rated value or at rate

39、d load d direct current or voltage L line side of interface transformer c converter v valve side of interface transformer valve through or across one valve max maximum min minimum n pertaining to harmonic component of order n BS EN 62747:2014 6 IEC 62747:2014 IEC 2014 ULeline-to-earth voltage on lin

40、e side of interface transformer, r.m.s. value including harmonics ULNrated value of ULUvline-to-line voltage on valve side of interface transformer, r.m.s. value including harmonics Uveline-to-earth voltage on valve side of interface transformer, r.m.s. value including harmonics Ucline-to-line conve

41、rter voltage, r.m.s. value including harmonics NOTE Ucis equal to Uvminus the voltage drop across the phase and valve reactors. However, Uchas only a clear meaning during balanced conditions (steady state). Uceline-to-earth converter voltage , r.m.s. value including harmonics Uvalvevoltage between t

42、erminals of a valve (any defined value) Iddirect current (any defined value) IdNrated direct current ILcurrent on line side of interface transformer, r.m.s. value including harmonics ILNrated value of ILIcurrent on valve side of interface transformer, r.m.s. value including harmonics Ialvecurrent th

43、rough a valve 3.2 List of subscripts 0 (zero) at no load e earth p pole N rated value or at rated load d direct current or voltage L line side of interface transformer c converter v valve side of interface transformer valve through or across one valve max maximum min minimum n pertaining to harmonic

44、 component of order n BS EN 62747:2014IEC 62747:2014 IEC 2014 7 Figure 1 Converter symbol identifications 3.3 List of abbreviations The following abbreviations are always in capital letters and without dots. CTL cascaded two-level converter ERTB earth return transfer breaker ESCR effective short-cir

45、cuit ratio FWD free-wheeling diode HF high frequency HVDC high-voltage direct current IGBT insulated gate bipolar transistor MMC modular multilevel converter MRTB metallic return transfer breaker MTDC multi-terminal HVDC transmission system MVU multiple valve (unit) NBS neutral bus switch NGBS neutr

46、al bus grounding switch PCC point of common coupling PCC-DC point of common coupling d.c. side IEC ULe Uve Uvalve Ivalve Id Positive d.c. terminalUdpe Udpp Uc Uce Iv IL UL Uv Ivalve Id transformer line sidetransformer valve sideNegative d.c. terminalBS EN 62747:2014 8 IEC 62747:2014 IEC 2014 SCR sho

47、rt-circuit ratio VBE valve base electronics VCU valve control unit VSC voltage-sourced converter NOTE Even though the word “breaker” is used in the abbreviations, it does not necessarily imply the ability to interrupt fault currents. 4 Graphical symbols Figure 2 shows the specific graphical symbols

48、which are defined only for the purposes of this standard. IEC 60617 shall be used for a more complete list of the graphical symbols which have been adopted for static converters. Figure 2 Graphical symbols IEC BS EN 62747:2014 8 IEC 62747:2014 IEC 2014 SCR short-circuit ratio VBE valve base electron

49、ics VCU valve control unit VSC voltage-sourced converter NOTE Even though the word “breaker” is used in the abbreviations, it does not necessarily imply the ability to interrupt fault currents. 4 Graphical symbols Figure 2 shows the specific graphical symbols which are defined only for the purposes of this standard. IEC 60617 shall be used for a more complete list of the graphical symbols which have been adopted for static converters. Figure 2 Graphical symbols IEC BS EN 62747:2014IEC 627