1、 IEC 62109-2 Edition 1.0 2011-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Safety of power converters for use in photovoltaic power systems Part 2: Particular requirements for inverters Scurit des convertisseurs de puissance utiliss dans les systmes photovoltaques Partie 2: Exigences particulires
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16、ions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62109-2 Edition 1.0 2011-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Safety of power converters for use in photovoltaic power systems Part 2: Particular requirements for inv
17、erters Scurit des convertisseurs de puissance utiliss dans les systmes photovoltaques Partie 2: Exigences particulires pour les onduleurs INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE V ICS 27.160 PRICE CODE CODE PRIX ISBN 978-2-88912-491-6 Registered trademark
18、 of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 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 Testi
19、ng in single fault condition . 9 4.4.4 Single fault conditions to be applied 9 4.4.4.15 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 Mea
20、surement requirements for AC output ports for stand-alone inverters 13 4.7.4 Stand-alone 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
21、response of the output voltage at nominal DC input . 13 4.7.4.5 Steady state output frequency . 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
22、Information requirements for non-sinusoidal waveforms 14 4.7.5.5 Output voltage waveform 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 re
23、sistance detection for inverters for ungrounded and functionally grounded arrays 17 4.8.2.1 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 dete
24、ction . 18 4.8.3.1 General . 18 4.8.3.2 30 mA touch current type test for isolated inverters . 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 cl
25、osed electrical operating areas . 22 5 Marking and documentation 22 5.1 Marking . 23 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 relat
26、ed to installation . 24 5.3.2.1 Ratings . 24 5.3.2.2 Grid-interactive inverter setpoints . 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 Sy
27、stems located in closed electrical operating areas . 26 5.3.2.8 Stand-alone inverter 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
28、grounding information 26 5.3.2.13 Stand-alone inverters for dedicated loads . 27 5.3.2.14 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
29、 requirements for stand-alone inverters 27 7.3.11 Functionally grounded arrays . 28 8 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 pres
30、sure hazards 28 11 Protection against liquid hazards 28 12 Protection against chemical 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 detect
31、ion testing . 21 Table 30 Requirements based on inverter isolation and array grounding 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 INTERNATI
32、ONAL ELECTROTECHNICAL COMMISSION _ SAFETY OF POWER CONVERTERS FOR USE IN PHOTOVOLTAIC 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 c
33、ommittees (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 publishes International Standards, Technical Specifications, Techn
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41、ge 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) Attention is drawn to the Normative references cited in this publ
42、ication. 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. IEC shall not be held responsible for identifying any or all s
43、uch patent rights. International Standard IEC 62109-2 has been prepared by IEC technical 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 th
44、is standard can be found in the report on voting indicated in the above table. This publication 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 P
45、art 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 text of Part 1 is to be applied with the required changes. Subclauses, figures and
46、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 IEC 62109-1:2010. The committee has decided that the contents of this publication will remain unchanged until the stab
47、ility date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related 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
48、 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). 62109-2 IEC:2011 7 SAFETY OF POW
49、ER CONVERTERS FOR USE IN PHOTOVOLTAIC POWER SYSTEMS Part 2: Particular requirements for inverters 1 Scope and object This clause of Part 1 is applicable with the following exception: 1.1 Scope Addition: This Part 2 of IEC 62109 covers the particular safety requirements relevant to d.c. to a.c. inverter products as well as products that have or perform inverter functions in addition to other functions, wh
