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    BS PD IEC TS 62786-2017 Distributed energy resources connection with the grid《连接电网的分布式能源》.pdf

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    BS PD IEC TS 62786-2017 Distributed energy resources connection with the grid《连接电网的分布式能源》.pdf

    1、Distributed energy resources connection with the grid PD IEC/TS 62786:2017 BSI Standards Publication WB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 IEC TS 62786 Edition 1.0 2017-04 TECHNICAL SPECIFICATION Distributed energy resources connection with the grid INTERNATIONAL ELECTROTECHNICAL

    2、COMMISSION ICS 29.240.01 ISBN 978-2-8322-4218-6 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. National foreword This British Standard is the UK implementation of IEC/TS 62786:2017. The UK pa

    3、rticipation in its preparation was entrusted to Technical Committee GEL/8, Systems Aspects for Electrical Energy Supply. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a c

    4、ontract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017 ISBN 978 0 580 85979 3 ICS 29.240.01 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under

    5、the authority of the Standards Policy and Strategy Committee on 30 June 2017. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD IEC/TS 62786:2017 IEC TS 62786 Edition 1.0 2017-04 TECHNICAL SPECIFICATION Distributed energy resources connection with the grid INTER

    6、NATIONAL ELECTROTECHNICAL COMMISSION ICS 29.240.01 ISBN 978-2-8322-4218-6 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. PD IEC/TS 62786:2017 2 IEC TS 62786:2017 IEC 2017 CONTENTS FOREWORD .

    7、4 1 Scope and object . 6 2 Normative references 6 3 Terms and definitions 6 4 Requirements on generating plants . 11 4.1 General . 11 4.2 Connection scheme 12 4.3 Choice of switchgear . 12 4.3.1 General . 12 4.3.2 Interface switch . 12 4.4 Normal operating range 12 4.4.1 General . 12 4.4.2 Operating

    8、 frequency range 12 4.4.3 Operating voltage range 13 4.5 Immunity to disturbances 13 4.5.1 General . 13 4.5.2 Rate of change of frequency (ROCOF) immunity . 13 4.5.3 Under voltage ride through (UVRT) requirements 13 4.5.4 Over voltage ride through (OVRT) requirements 14 4.6 Active power response to

    9、frequency deviation . 14 4.7 Reactive power response to voltage variations and voltage changes . 15 4.7.1 General . 15 4.7.2 Reactive power control 15 4.7.3 Dynamic reactive power support capabilities 15 4.8 EMC and power quality . 15 4.8.1 General . 15 4.8.2 Direct current (DC) injection 16 4.9 Int

    10、erface protection . 16 4.10 Connection and start to generate electrical power . 17 4.10.1 General . 17 4.10.2 Connection of synchronous generators 17 4.10.3 Auto reclose of distribution lines 17 4.11 Active power management 18 4.12 Monitoring, control and communication . 18 4.12.1 Monitoring and con

    11、trol . 18 4.12.2 Communication 18 5 Conformance tests 18 Annex A (normative) Operating frequency range . 19 Annex B (normative) Operating voltage range . 20 Annex C (normative) Under voltage ride through capability of DERs . 21 Annex D (normative) Over voltage ride through parameters 22 Bibliography

    12、 23 Figure 1 Electricity generating plant connected to a distribution network (schematic view of switches) 10 Figure 2 Under voltage ride through capability requirements of DER . 14 PD IEC/TS 62786:2017 2 IEC TS 62786:2017 IEC 2017 CONTENTS FOREWORD . 4 1 Scope and object . 6 2 Normative references

    13、6 3 Terms and definitions 6 4 Requirements on generating plants . 11 4.1 General . 11 4.2 Connection scheme 12 4.3 Choice of switchgear . 12 4.3.1 General . 12 4.3.2 Interface switch . 12 4.4 Normal operating range 12 4.4.1 General . 12 4.4.2 Operating frequency range 12 4.4.3 Operating voltage rang

    14、e 13 4.5 Immunity to disturbances 13 4.5.1 General . 13 4.5.2 Rate of change of frequency (ROCOF) immunity . 13 4.5.3 Under voltage ride through (UVRT) requirements 13 4.5.4 Over voltage ride through (OVRT) requirements 14 4.6 Active power response to frequency deviation . 14 4.7 Reactive power resp

    15、onse to voltage variations and voltage changes . 15 4.7.1 General . 15 4.7.2 Reactive power control 15 4.7.3 Dynamic reactive power support capabilities 15 4.8 EMC and power quality . 15 4.8.1 General . 15 4.8.2 Direct current (DC) injection 16 4.9 Interface protection . 16 4.10 Connection and start

    16、 to generate electrical power . 17 4.10.1 General . 17 4.10.2 Connection of synchronous generators 17 4.10.3 Auto reclose of distribution lines 17 4.11 Active power management 18 4.12 Monitoring, control and communication . 18 4.12.1 Monitoring and control . 18 4.12.2 Communication 18 5 Conformance

    17、tests 18 Annex A (normative) Operating frequency range . 19 Annex B (normative) Operating voltage range . 20 Annex C (normative) Under voltage ride through capability of DERs . 21 Annex D (normative) Over voltage ride through parameters 22 Bibliography 23 Figure 1 Electricity generating plant connec

    18、ted to a distribution network (schematic view of switches) 10 Figure 2 Under voltage ride through capability requirements of DER . 14 IEC TS 62786:2017 IEC 2017 3 Table 1 Operating frequency requirements of DERs . 13 Table 2 Operating voltage requirements of DERs . 13 Table 3 Interface protection fu

    19、nctions 17 Table A.1 Continuous operating frequency range . 19 Table A.2 Limited operating frequency range . 19 Table B.1 Continuous operating voltage range . 20 Table B.2 Limited operating voltage range . 20 Table C.1 UVRT capability of DERs with an interface to the grid based on a synchronous gene

    20、rator . 21 Table C.2 UVRT capability of DERs with an interface to the grid based on non- synchronous generators (eg. converters, DFIG, etc.) . 21 Table D.1 Medium voltage OVRT requirements 22 PD IEC/TS 62786:2017 4 IEC TS 62786:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DISTRIBUTED EN

    21、ERGY RESOURCES CONNECTION WITH THE GRID FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all que

    22、stions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publicatio

    23、n(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC co

    24、llaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinio

    25、n on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ens

    26、ure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently t

    27、o the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certificati

    28、on bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall att

    29、ach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fee

    30、s) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publicati

    31、on. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. 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 exc

    32、eptional circumstances, a technical committee may propose the publication of a technical specification when the required 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

    33、reason, there is the future but no immediate possibility of an agreement on an International Standard. Technical specifications are subject to review within three years of publication to decide whether they can be transformed into International Standards. IEC TS 62786 has been prepared by IEC Techni

    34、cal Committee 8: System aspects for electrical energy supply. PD IEC/TS 62786:2017 4 IEC TS 62786:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DISTRIBUTED ENERGY RESOURCES CONNECTION WITH THE GRID FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organizatio

    35、n for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC pu

    36、blishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with ma

    37、y participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agree

    38、ment between the two organizations. 2) The formal decisions or agreements of 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 IEC National Committees. 3) IEC P

    39、ublications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used

    40、or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corr

    41、esponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for

    42、 any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees an

    43、d IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) A

    44、ttention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights

    45、. 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 required support c

    46、annot 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 specifications ar

    47、e subject to review within three years of publication to decide whether they can be transformed into International Standards. IEC TS 62786 has been prepared by IEC Technical Committee 8: System aspects for electrical energy supply. IEC TS 62786:2017 IEC 2017 5 The text of this technical specificatio

    48、n is based on the following documents: Enquiry draft Report on voting 8/1439/DTS 8/1457/RVDTS 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 document has been drafted in accordance with the ISO/I

    49、EC Directives, Part 2. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be transformed into an International standard, reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. PD IEC/TS 62786:2017


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