IEC_TR_62001-4-2016.pdf

IEC TR 62001-4 Edition 1.0 2016-05 TECHNICAL REPORT High-voltage direct current(HVDC)systems Guidance to the specification and design evaluation of AC filters Part 4:Equipment IEC TR 62001-4:2016-05(en)THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC,Geneva,Switzerland 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 IECs 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 Varemb Fax:+41 22 919 03 00 CH-1211 Geneva 20 infoiec.ch Switzerland www.iec.ch A bout 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 corrigenda or an amendment might have been published.IEC Catalogue-webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical infor mation on IEC Inter national Standards,Technical Specifications,Technical Reports and other documents.Available for PC,Mac OS,Andr oid Tablets and iPad.IEC publications search-www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criter ia(r efer ence number,text,technical committee,).It also gives information on pr ojects,replaced and w ithdr awn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.Available online and also once a month by email.Electropedia-www.electropedia.org The w or lds leading online dictionary of electronic and electr ical terms containing 20 000 ter ms and definitions in English and French,w ith equivalent terms in 15 additional languages.Also k now n as the International Electr otechnical Vocabulary (IEV)online.IEC Glossary -std.iec.ch/glossary 65 000 electrotechnical ter minology entr ies in English and French extr acted from the Terms and Definitions clause of IEC publications issued since 2002.Some entr ies have been collected fr om earlier publications of IEC TC 37,77,86 and CISPR.IEC Customer Serv ice Centre-webstore.iec.ch/csc If you w ish to give us y our feedback on this publication or need further assistance,please contact the Customer Ser vice Centr e:csciec.ch.IEC TR 62001-4 Edition 1.0 2016-05 TECHNICAL REPORT High-voltage direct current(HVDC)systems Guidance to the specification and design evaluation of AC filters Part 4:Equipment INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.200 ISBN 978-2-8322-3400-6 Registered trademark of the International Electrotechnical Commission Warning!Make sure that y ou obtained this publication from an authorized distributor.2 IEC TR 62001-4:2016 IEC 2016 CONTENTS FOREWORD.6 INTRODUCTION.8 1 Scope.9 2 Steady state rating.9 2.1 General.9 2.2 Calculation method.9 2.2.1 General.9 2.2.2 AC system pre-existing harmonics.11 2.2.3 Combination of converter and pre-existing harmonics.11 2.2.4 Equipment rating calculations.12 2.2.5 Application of voltage ratings.15 2.3 AC network conditions.16 2.4 De-tuning effects.16 2.5 Network impedance for rating calculations.16 2.6 Outages.17 3 Transient stresses and rating.17 3.1 General.17 3.2 Switching impulse studies.18 3.2.1 Energization and switching.18 3.2.2 Faults external to the filter.19 3.2.3 Faults internal to the filter.21 3.2.4 Transformer inrush currents.21 3.3 Fast fronted waveform studies.21 3.3.1 General.21 3.3.2 Lightning strikes.21 3.3.3 Busbar flashover studies.22 3.4 Insulation co-ordination.22 4 Losses.23 4.1 Background.23 4.2 AC filter component losses.24 4.2.1 General.24 4.2.2 Filter/shunt capacitor losses.24 4.3 Reactor and resistor losses.25 4.3.1 General.25 4.3.2 Filter resistor losses.26 4.3.3 Shunt reactor losses.26 4.4 Criteria for loss evaluation.27 4.4.1 General.27 4.4.2 Fundamental frequency AC filter busbar voltage.27 4.4.3 Fundamental frequency and ambient temperature.27 4.4.4 AC system harmonic impedance.28 4.4.5 Harmonic currents generated by the converter.28 4.4.6 Pre-existing harmonic distortion.29 4.4.7 The anticipated load profile of the converter station.29 5 Design issues and special applications.29 5.1 General.29 IEC TR 62001-4:2016 IEC 2016 3 5.2 Performance aspects.30 5.2.1 Low order harmonic filtering and resonance conditions with AC system.30 5.2.2 Definition of interference factors to include harmonics up to 5 kHz.31 5.2.3 Triple-tuned filter circuits.31 5.2.4 Harmonic AC fil