IEC_TS_62898-1-2017.pdf

IEC TS 62898-1 Edition 1.0 2017-05 TECHNICA L SPECIFICA TION Microgrids Part 1:Guidelines for microgrid projects planning and specification IEC TS 62898-1:2017-05(en)colourinside THIS PUBLICA TION IS COPYRIGHT PROTECTED Copyright 2017 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no par t of this publication may be reproduced or utilized in any for m or by any means,electronic or mechanical,including photocopying and microfilm,without per mission in writing fr om 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 r ights to this publication,please contact the address below or your local IEC member National Committee for further infor mation.IEC Centr al Office Tel.:+41 22 919 02 11 3,rue de Varemb Fax:+41 22 919 03 00 CH-1211 Geneva 20 inf oiec.ch Switzerland www.iec.ch About t he IEC The International Electr otechnical Commission(IEC)is the leading global organization that prepar es and publishes Inter national Standards for all electr ical,electronic and related technologies.A bout IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sur e that you have the latest edition,a cor rigenda or an amendment might have been published.IEC Cat alogue-webstore.iec.ch/cat alogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards,Technical Specifications,Technical R eports and other documents.A v ailable for PC,Mac OS,A ndroid Tablets and iPad.IEC publications search-w w w.iec.ch/searchpub The adv anced search enables to find IEC publications by a variety of criteria(reference number,text,technical committee,).It also gives information on projec ts,replaced and withdrawn publications.IEC Just Published-webstore.iec.ch/justpublished Stay up to date on all new IEC publications.Just Published details all new publications released.A v ailable online and also once a month by email.Elect ropedia-w w w.elect ropedia.org The worlds leading online dic tionary of elec tronic and electrical terms containing 20 000 terms and definitions in English and French,with equiv alent terms in 16 additional languages.A lso known as the International Electrotechnical Vocabulary (IEV)online.IEC Glossar y-st d.iec.ch/glossary 65 000 elec trotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002.Some entries hav e been collected from earlier publications of IEC TC 37,77,86 and CISPR.IEC Customer Service Cent re-webstore.iec.ch/csc If y ou wish to giv e us y our feedback on this publication or need further assistance,please contact the Customer Serv ice Centre:csciec.ch.IEC TS 62898-1 Edit ion 1.0 2017-05 TECHNICA L SPECIFICA TION Microgrids Part 1:Guidelines for microgrid projects planning and specification INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.240.01 ISBN 978-2-8322-4360-2 R egist er ed tr ademar k of t he Int er national Electr ot echnical Commission W arning!Make sure that y ou obtained this publication from an authorized distributor.colourinside 2 IEC TS 62898-1:2017 IEC 2017 CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 Normative references.8 3 Terms and definitions.8 4 General principles.13 4.1 General.13 4.2 Preliminary study.14 4.3 Overall microgrid planning and design process.14 5 Purpose and application of microgrids.15 5.1 Application classification.15 5.2 Application of non-isolated microgrids.15 5.3 Application of isolated microgrids.15 6 Resource analysis and generation forecast.16 6.1 Resource analysis.16 6.1.1 General.16 6.1.2 Non-dispatchable resource analysis.16 6.1.3 Dispatchable resource analysis.17 6.2 Generation forecast.17 6.2.1 General.17 6.2.2 Technical requirements.17 6.2.3 Data processing.18 7 Load forecast.18 7.1 General.18 7.2 Load analysis.18 7.3 Classification of load forecast.19 7.4 Technical requirements.19 8 Distributed energy resource planning.20 8.1 Ratio of renewable energy.20 8.2 Renewable generation configuration.20 8.3 Energy storage.20 8.4 Electric power and energy balancing.20 8.5 Dispatchable generation configuration.20 9 Microgrid power system planning.21 9.1 Voltage level.21 9.2 Typical topology of a microgrid.21 9.2.1 Typical topology for a non-isolated microgrid.21 9.2.2 Typical topology for an isolated microgrid.23 9.3 Electrical parameter calculations.23 10 Technical requirements for DER in microgrids.23 10.1 General.23 10.2 Technical requirements for DER in grid-connected mode.24 10.3 Technical requirements for DER in isolated microgrids and island mode of non-isolated microgrids.24 11 Technical requirements for distribution lines in microgrids.24 12 Technical requirements for microgrid connection to distribution networks.24 IEC TS 62898-1:2017 IEC 2017 3 12.1 General.24 12.2 Interface protection.24 12.3 Microgrid earthing.25 12.3.1 General.