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1、TECHNICAL SPECIFICATION IEC TS 60071-5 First edition 2002-06 Insulation co-ordination Part 5: Procedures for high-voltage direct current (HVDC) converter stations Coordination de lisolement - Partie 5: Procdures pour les stations de conversion CCHT Reference number IEC/TS 60071-5:2002(E) Copyright I
2、nternational Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- Publication numbering As from 1 January 1997 all IEC publi
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8、e Customer Service Centre (see below) for further information. Customer Service Centre If you have any questions regarding this publication or need further assistance, please contact the Customer Service Centre: Email: custserviec.ch Tel: +41 22 919 02 11 Fax: +41 22 919 03 00 Copyright Internationa
9、l Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- TECHNICAL SPECIFICATION IEC TS 60071-5 First edition 2002-06 Insulati
10、on co-ordination Part 5: Procedures for high-voltage direct current (HVDC) converter stations Coordination de lisolement - Partie 5: Procdures pour les stations de conversion CCHT PRICE CODE IEC 2002 Copyright - all rights reserved No part of this publication may be reproduced or utilized in any for
11、m or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: i
12、nmailiec.ch Web: www.iec.ch W For price, see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for R
13、esale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- 2 TS 60071-5 IEC:2002(E) CONTENTS FOREWORD.5 1General 7 1.1Scope7 1.2Additional background .7 2Normative references8 3Definitions 8 4Symbols and abbreviations .12 4.1Subscripts .12 4.2Letter symbols.
14、12 4.3Abbreviations.12 4.4Typical HVDC converter station schemes and associated graphical symbols 13 5Principles of insulation co-ordination .15 5.1Essential differences between a.c. and d.c. systems 15 5.2Insulation co-ordination procedure .16 6Voltages and overvoltages in service 18 6.1Arrangement
15、s of arresters .18 6.2Continuous operating voltages at various locations in the converter station 19 6.3Peak (PCOV) and crest value (CCOV) of continuous operating voltage applied to valves and arresters 20 6.4Sources and types of overvoltages.21 6.5Overvoltage limiting characteristics of arresters .
16、24 6.6Valve protection strategy .25 6.7Methods and tools for overvoltage and surge arrester characteristic studies.25 6.8Necessary system details 28 7Design objectives of insulation co-ordination .30 7.1Arrester requirements31 7.2Characteristics of insulation.33 7.3Representative overvoltages33 7.4D
17、etermination of the required withstand voltage .36 7.5Determination of the specified withstand voltage 37 7.6Creepage distances.37 7.7Clearances in air .37 8Creepage distances and clearances in air .37 8.1Creepage distance for outdoor insulation under d.c. voltage.38 8.2Creepage distance for indoor
18、insulation under d.c. voltage.38 8.3Creepage distance of a.c. insulators (external).38 8.4Clearances in air .39 9Arrester requirements .39 9.1Arrester specification.39 9.2AC bus arrester (A)40 9.3AC filter arrester (FA) 40 9.4Valve arrester (V) 40 9.5Bridge arrester (B).42 9.6Converter unit arrester
19、 (C).43 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- TS 60071-5 IEC:2002(E) 3 9.7Mid-point d
20、.c. bus arrester (M).43 9.8Converter unit d.c. bus arrester (CB)43 9.9DC bus and d.c. line/cable arrester (DB and DL) 44 9.10Neutral bus arrester (E) .44 9.11DC reactor arrester (DR)45 9.12DC filter arrester (FD)45 9.13Earth electrode station arrester45 Annex A (informative) Example of insulation co
21、-ordination for conventional HVDC converters 46 Annex B (informative) Example of insulation co-ordination for Controlled Series Capacitor Converters (CSCC) and Capacitor Commutated Converters (CCC)55 Annex C (informative) Considerations for insulation co-ordination of some special converter configur
22、ations69 Bibliography75 Figure 1 Single line diagram of typical converter pole with two 12-pulse converters in series.13 Figure 2 Single line diagram of typical capacitor commutated converter (CCC) pole with two 12-pulse converters in series .14 Figure 3 Single line diagram of typical controlled ser
23、ies compensated converter (CSCC) pole with two 12-pulse converters in series.14 Figure 4 HVDC converter station diagram with 12-pulse converter bridges18 Figure 5 Continuous operating voltages at various locations (location identification according to figure 4) 20 Figure 6 Operating voltage of a val
24、ve arrester (V), rectifier operation21 Figure 7 One pole of an HVDC converter station.29 Figure A.1 AC and DC arresters (400 kV a.c. side for conventional HVDC converters) .52 Figure A.2 Simplified circuit configuration for stresses of valve arrester at slow-front overvoltages from a.c. side (conven
25、tional HVDC converters) Illustration of slow-front overvoltage wave (applied voltage)53 Figure A.3 Stresses on valve arrester V2 at slow-front overvoltage from a.c. side (conventional HVDC converter ) 53 Figure A.4 Circuit configuration for stresses on valve arrester at earth fault on transformer HV
26、 bushing (conventional HVDC converters) 54 Figure A.5 Stresses on valve arrester V1 during earth fault on HV bushing of converter transformer (conventional HVDC converter) .54 Figure B.1a AC and DC arresters (400 kV a.c. side for CCC converters).62 Figure B.1b AC and DC arresters (400 kV a.c. side f
27、or CSCC converter) 63 Figure B.2a Simplified circuit configuration for stresses on valve arrester at slow-front overvoltages from a.c. side (CCC converter) .64 Figure B.2b Simplified circuit configuration for stresses on valve arrester at slow-front overvoltages from a.c. side (CSCC converter) .64 F
28、igure B.3a Stresses on valve arrester V2 at slow-front overvoltage from a.c. side (CCC converter)65 Figure B.3b Stresses on valve arrester V2 at slow-front overvoltage from a.c. side (CSCC converter)65 Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee
29、=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- 4 TS 60071-5 IEC:2002(E) Figure B.4a Circuit configuration for stresses on valve arrester at earth fault on HV bushing of converter transformer (
30、CCC converter).66 Figure B.4b Circuit configuration for stresses on valve arrester at earth fault on HV bushing of converter transformer (CSCC converter) 66 Figure B.5a Stresses on valve arrester V1 during earth fault on HV bushing of converter transformer (CCC converter)67 Figure B.5b Stresses on v
31、alve arrester V1 during earth fault on HV bushing of converter transformer (CSCC converter) .67 Figure B.6a Stresses on CCC capacitor arrester Ccc during earth fault on HV bushing of converter transformer (CCC converter)68 Figure B.6b Stresses on CSCC capacitor arrester Csc during earth fault on HV
32、bushing of converter transformer (CSCC converter).68 Figure C.1 Expanded HVDC converter with parallel valve groups 70 Figure C.2 Upgraded HVDC converter with series valve group 72 Table 1 Symbol description 14 Table 2 Comparison of the selection of withstand voltages for three-phase a.c. equipment w
33、ith that for HVDC converter station equipment17 Table 3 Events stressing the different arresters 27 Table 4 Types of stresses on arresters for different events .27 Table 5 Origin of overvoltages and associated frequency ranges 28 Table 6 Table for arrester requirements32 Table 7 Arrester protection
34、of d.c. side of a HVDC converter station .34 Table 8 Table gathering representative overvoltage levels and required withstand voltage levels35 Table 9 Indicative values of ratios of required impulse withstand voltage to impulse protective level37 Copyright International Electrotechnical Commission P
35、rovided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- TS 60071-5 IEC:2002(E) 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INSULATION CO-ORDINATION Part 5
36、: Procedures for high-voltage direct current (HVDC) converter stations FOREWORD 1)The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote int
37、ernational co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, the IEC publishes International Standards. Their preparation is entrusted to technical committees; any IEC National Committee interested in th
38、e subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with cond
39、itions determined by agreement between the two organizations. 2)The formal decisions or agreements of the 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 Nati
40、onal Committees. 3)The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the National Committees in that sense. 4)In order to promote international unifi
41、cation, IEC National Committees undertake to apply IEC International Standards transparently to the maximum extent possible in their national and regional standards. Any divergence between the IEC Standard and the corresponding national or regional standard shall be clearly indicated in the latter.
42、5)The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with one of its standards. 6)Attention is drawn to the possibility that some of the elements of this technical specification may be the subject of patent
43、 rights. The IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical specification when the require
44、d support cannot be obtained for the publication of an International Standard, despite repeated efforts, or the subject is still under technical development or where, for any other reason, there is the future but no immediate possibility of an agreement on an International Standard. Technical specif
45、ications are subject to review within three years of publication to decide whether they can be transformed into International Standards. IEC 60071-5, which is a technical specification, has been prepared by IEC technical committee 28: Insulation co-ordination. The text of this technical specificatio
46、n is based on the following documents: Enquiry draftReport on voting 28/139/CDV28/144A/RVC Full information on the voting for the approval of this technical specification can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/I
47、EC Directives, Part 3. Copyright International Electrotechnical Commission Provided by IHS under license with IECLicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/08/2007 19:08:05 MSTNo reproduction or networking permitted without license from IHS -,-,- 6 TS 60071-5 IEC:2002(E)
48、 This technical specification is published in English only. Annexes A, B and C are for information only. The committee has decided that the contents of this publication will remain unchanged until 2008. At this date, the publication will be transformed into an International standard reconfirmed; withdrawn; replaced by a revised edition, or amended. Copyright International Electrotechnical Commission Provided by IHS unde