IEC 62751-1-2014 Determination of power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems - Part 1 General require.pdf

1、 IEC 62751-1 Edition 1.0 2014-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems Part 1: General requirements Pertes de puissance dans les valves convertisseur de source de tension (VSC) des systmes en

2、courant continu haute tension (CCHT) Partie 1: Exigences gnrales IEC 62751-1:2014-08(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2014 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any

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20、ALE Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems Part 1: General requirements Pertes de puissance dans les valves convertisseur de source de tension (VSC) des systmes en courant continu haute tension (CCHT) Partie 1: Exigences gnrales INTERNAT

21、IONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 29.200; 29.240 PRICE CODE CODE PRIX ISBN 978-2-8322-1835-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that yo

22、u obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 62751-1:2014 IEC 2014 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 3.1 Converter type

23、s 7 3.2 Semiconductor devices . 7 3.3 Converter operating states 8 3.4 Device characteristics . 9 3.5 Other definitions . 9 4 General conditions. 10 4.1 General . 10 4.2 Causes of power losses 11 4.3 Categories of valve losses 11 4.4 Operating conditions . 12 4.4.1 General . 12 4.4.2 Reference ambie

24、nt conditions 12 4.4.3 Reference a.c. system conditions 12 4.4.4 Converter operating states. 12 4.4.5 Treatment of redundancy . 12 4.5 Use of real measured data 13 4.5.1 General . 13 4.5.2 Routine testing 13 4.5.3 Characterisation testing . 13 5 Conduction losses . 14 5.1 General . 14 5.2 IGBT condu

25、ction losses 16 5.3 Diode conduction losses . 16 5.4 Other conduction losses 17 6 D.C. voltage-dependent losses 17 7 Losses in d.c. capacitors . 18 8 Switching losses 18 8.1 General . 18 8.2 IGBT switching losses . 19 8.3 Diode switching losses 20 9 Other losses 21 9.1 Snubber circuit losses . 21 9.

26、2 Valve electronics power consumption 21 10 Total valve losses per converter substation . 22 Annex A (informative) Determination of power losses in other HVDC substation equipment . 25 A.1 General . 25 A.2 Guidance for calculating losses in each equipment . 25 A.2.1 Circuit breaker . 25 A.2.2 Pre-in

27、sertion resistor . 25 A.2.3 Line side harmonic filter . 26 IEC 62751-1:2014 IEC 2014 3 A.2.4 Line side high frequency filter 26 A.2.5 Interface transformer . 26 A.2.6 Converter side harmonic filter 27 A.2.7 Converter side high frequency filter . 27 A.2.8 Phase reactor 27 A.2.9 VSC unit 27 A.2.10 VSC

28、 d.c. capacitor . 27 A.2.11 D.C. harmonic filter 27 A.2.12 Dynamic braking system 27 A.2.13 Neutral point grounding branch 28 A.2.14 D.C. reactor . 28 A.2.15 Common mode blocking reactor . 28 A.2.16 D.C. side high frequency filter 28 A.2.17 D.C. cable or overhead transmission line . 28 A.3 Auxiliari

29、es and station service losses 29 Bibliography 30 Figure 1 On-state voltage of an IGBT or diode . 14 Figure 2 Piecewise-linear representation of IGBT or diode on-state voltage . 15 Figure 3 IGBT switching energy as a function of collector current 19 Figure 4 Diode recovery energy as a function of cur

30、rent 20 Figure A.1 Major components that may be found in a VSC substation 26 Table 1 Matrix indicating the relationship of data needed for calculation of losses and the type of valve losses (1 of 2) . 23 4 IEC 62751-1:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ POWER LOSSES IN VOLTAGE

31、SOURCED CONVERTER (VSC) VALVES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS Part 1: General requirements FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). Th

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42、rd IEC 62751-1 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/302/CDV 22F/321

43、A/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. IEC 62751-1:2014 IEC 2014 5 A list of all parts in the IEC 62751series, publi

44、shed under the general title Power losses in voltage sourced converter (VSC) valves for high-voltage direct current (HVDC) systems, 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 web

45、 site 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. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours whic

46、h are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 IEC 62751-1:2014 IEC 2014 POWER LOSSES IN VOLTAGE SOURCED CONVERTER (VSC) VALVES FOR HIGH-VOLTAGE DIRECT CURRENT (HVDC) SYSTEMS Part 1: General requiremen

47、ts 1 Scope This part of IEC 62751 sets out the general principles for calculating the power losses in the converter valves of a voltage sourced converter (VSC) for high-voltage direct current (HVDC) applications, independent of the converter topology. Clauses 6 and 8 and subclauses 9.1, 9.2 and A.2.

48、12 of the standard can also be used for calculating the power losses in the dynamic braking valves (where used) and as guidance for calculating the power losses of the valves for a STATCOM installation. Power losses in other items of equipment in the HVDC substation, apart from the converter valves,

49、 are excluded from the scope of this standard. Power losses in most equipment in a VSC substation can be calculated using similar procedures to those prescribed for HVDC systems with line-commutated converters (LCC) in IEC 61803. Annex A presents the main differences between LCC and VSC HVDC substations in so far as they influence the method for determining power losses of other equipment. This standard does not ap