1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 62109-2:2011Safety of power convertersfor use in photovoltaic powersystems Part 2: Particular requirements for invertersBS EN 62109-2:2011 BRITISH STANDARDNational foreword
2、This British Standard is the UK implementation of EN 62109-2:2011. It is identical to IEC 62109-2:2011.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/82, Photovoltaic Energy Systems.A list of organizations represented on this committee can beobtained on request to it
3、s secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 54184 1ICS 27.160Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was pu
4、blished under the authority of theStandards Policy and Strategy Committee on 31 October 2011.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 62109-2:2011EUROPEAN STANDARD EN 62109-2 NORME EUROPENNE EUROPISCHE NORM September 2011 CENELEC European Committee for Electrotechnical St
5、andardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2011 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62109-2:201
6、1 E ICS 27.160 English version Safety of power converters for use in photovoltaic power systems - Part 2: Particular requirements for inverters (IEC 62109-2:2011) Scurit des convertisseurs de puissance utiliss dans les systmes photovoltaques - Partie 2: Exigences particulires pour les onduleurs (CEI
7、 62109-2:2011) Sicherheit von Leistungsumrichtern zur Anwendung in photovoltaischen Energiesystemen - Teil 2: Besondere Anforderungen an Wechselrichter (IEC 62109-2:2011) This European Standard was approved by CENELEC on 2011-07-28. CENELEC members are bound to comply with the CEN/CENELEC Internal R
8、egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENEL
9、EC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official
10、versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Port
11、ugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 62109-2:2011EN 62109-2:2011 - 2 - Foreword The text of document 82/636/FDIS, future edition 1 of IEC 62109-2, prepared by IEC TC 82, “Solar photovoltaic energy systems“, was submitted to the IEC-CENELEC paral
12、lel vote and was approved by CENELEC as EN 62109-2 on 2011-07-28. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates wer
13、e fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2012-04-28 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2014-07-28 The requirements in this Part 2 a
14、re to be used with the requirements in Part 1, and supplement or modify clauses in Part 1. When a particular clause or subclause of Part 1 is not mentioned in this Part 2, that clause of Part 1 applies. When this Part 2 contains clauses that add to, modify, or replace clauses in Part 1, the relevant
15、 text of Part 1 is to be applied with the required changes. Subclauses, figures and tables additional to those in Part 1 are numbered in continuation of the sequence existing in Part 1. All references to “Part 1” in this Part 2 shall be taken as dated references to EN 62109-1:2010. Annex ZA has been
16、 added by CENELEC. _ Endorsement notice The text of the International Standard IEC 62109-2:2011 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60364-7-712 NOTE H
17、armonized as HD 60364-7-712. IEC 61008-1 NOTE Harmonized as EN 61008-1. IEC 61727 NOTE Harmonized as EN 61727. IEC 61730-1 NOTE Harmonized as EN 61730-1. IEC 62116 NOTE Harmonized as EN 62116. _ BS EN 62109-2:2011- 3 - EN 62109-2:2011 Annex ZA (normative) Normative references to international public
18、ations with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) appl
19、ies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Addition to EN 62109-1:2010: Publication Year Title EN/HD Year IEC 62109-1 2010 Safety of power converters for use in photovoltaic power systems - Part 1: General re
20、quirements EN 62109-1 2010 2 62109-2 IEC:2011 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope and object 7 1.1 Scope 7 2 Normative references . 7 3 Terms and definitions . 8 4 General testing requirements 9 4.4 Testing in single fault condition . 9 4.4.4 Single fault conditions to be applied 9 4.4.4.
21、15 Fault-tolerance of protection for grid-interactive inverters 9 4.4.4.16 Stand-alone inverters Load transfer test . 12 4.4.4.17 Cooling system failure Blanketing test 12 4.7 Electrical ratings tests . 12 4.7.3 Measurement requirements for AC output ports for stand-alone inverters 13 4.7.4 Stand-al
22、one Inverter AC output voltage and frequency 13 4.7.4.1 General . 13 4.7.4.2 Steady state output voltage at nominal DC input . 13 4.7.4.3 Steady state output voltage across the DC input range . 13 4.7.4.4 Load step response of the output voltage at nominal DC input . 13 4.7.4.5 Steady state output f
23、requency . 13 4.7.5 Stand-alone inverter output voltage waveform . 14 4.7.5.1 General . 14 4.7.5.2 Sinusoidal output voltage waveform requirements . 14 4.7.5.3 Non-sinusoidal output waveform requirements 14 4.7.5.4 Information requirements for non-sinusoidal waveforms 14 4.7.5.5 Output voltage wavef
24、orm requirements for inverters for dedicated loads . 15 4.8 Additional tests for grid-interactive inverters 15 4.8.1 General requirements regarding inverter isolation and array grounding 15 4.8.2 Array insulation resistance detection for inverters for ungrounded and functionally grounded arrays 17 4
25、.8.2.1 Array insulation resistance detection for inverters for ungrounded arrays 17 4.8.2.2 Array insulation resistance detection for inverters for functionally grounded arrays . 17 4.8.3 Array residual current detection . 18 4.8.3.1 General . 18 4.8.3.2 30 mA touch current type test for isolated in
26、verters . 19 4.8.3.3 Fire hazard residual current type test for isolated inverters . 19 4.8.3.4 Protection by application of RCDs 19 4.8.3.5 Protection by residual current monitoring 19 4.8.3.6 Systems located in closed electrical operating areas . 22 5 Marking and documentation 22 5.1 Marking . 23
27、62109-2 IEC:2011 3 5.1.4 Equipment ratings 23 5.2 Warning markings . 23 5.2.2 Content for warning markings 23 5.2.2.6 Inverters for closed electrical operating areas . 24 5.3 Documentation 24 5.3.2 Information related to installation . 24 5.3.2.1 Ratings . 24 5.3.2.2 Grid-interactive inverter setpoi
28、nts . 25 5.3.2.3 Transformers and isolation 25 5.3.2.4 Transformers required but not provided. 25 5.3.2.5 PV modules for non-isolated inverters . 25 5.3.2.6 Non-sinusoidal output waveform information . 25 5.3.2.7 Systems located in closed electrical operating areas . 26 5.3.2.8 Stand-alone inverter
29、output circuit bonding . 26 5.3.2.9 Protection by application of RCDs 26 5.3.2.10 Remote indication of faults 26 5.3.2.11 External array insulation resistance measurement and response . 26 5.3.2.12 Array functional grounding information 26 5.3.2.13 Stand-alone inverters for dedicated loads . 27 5.3.
30、2.14 Identification of firmware version(s) . 27 6 Environmental requirements and conditions 27 7 Protection against electric shock and energy hazards . 27 7.3 Protection against electric shock . 27 7.3.10 Additional requirements for stand-alone inverters 27 7.3.11 Functionally grounded arrays . 28 8
31、 Protection against mechanical hazards . 28 9 Protection against fire hazards . 28 9.3 Short-circuit and overcurrent protection . 28 9.3.4 Inverter backfeed current onto the array 28 10 Protection against sonic pressure hazards 28 11 Protection against liquid hazards 28 12 Protection against chemica
32、l hazards 28 13 Physical requirements 29 13.9 Fault indication 29 14 Components . 29 Bibliography 30 Figure 20 Example system discussed in Note 2 above . 11 Figure 21 Example test circuit for residual current detection testing . 21 Table 30 Requirements based on inverter isolation and array groundin
33、g 16 Table 31 Response time limits for sudden changes in residual current . 20 Table 32 Inverter ratings Marking requirements 23 Table 33 Inverter ratings Documentation requirements . 24 4 62109-2 IEC:2011 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ SAFETY OF POWER CONVERTERS FOR USE IN PHOTOVOLTAIC
34、 POWER SYSTEMS Part 2: Particular requirements for inverters 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
35、-operation on all questions 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
36、to as “IEC Publication(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
37、 preparation. IEC collaborates 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
38、 consensus of opinion 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 eff
39、orts 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 or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publicat
40、ions transparently to 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. Ind
41、ependent certification 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
42、 liability shall attach 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
43、(including legal fees) 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 applicati
44、on 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. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62109-2 has been prepared by IEC technic
45、al committee 82: Solar photovoltaic energy systems. The text of this standard is based on the following documents: FDIS Report on voting 82/636/FDIS 82/648A/RVD 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 pu
46、blication has been drafted in accordance with the ISO/IEC Directives, Part 2. 62109-2 IEC:2011 5 The requirements in this Part 2 are to be used with the requirements in Part 1, and supplement or modify clauses in Part 1. When a particular clause or subclause of Part 1 is not mentioned in this Part 2
47、, that clause of Part 1 applies. When this Part 2 contains clauses that add to, modify, or replace clauses in Part 1, the relevant text of Part 1 is to be applied with the required changes. Subclauses, figures and tables additional to those in Part 1 are numbered in continuation of the sequence exis
48、ting in Part 1. All references to “Part 1” in this Part 2 shall be taken as dated references to IEC 62109-1:2010. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data rel
49、ated to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 6 62109-2 IEC:2011 INTRODUCTION This Part 2 of IEC 62109 gives requirements for grid-interactive and stand-alone inverters. This equipment has potentially hazardous input sources and output circuits, internal components, and features and functions, which demand different requirements for safety than those given in Part 1 (IEC 62109-1:2010).
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