1、 IEC 62509 Edition 1.0 2010-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Battery charge controllers for photovoltaic systems Performance and functioning Contrleurs de charge de batteries pour systmes photovoltaques Performance et fonctionnement IEC 62509:2010 THIS PUBLICATION IS COPYRIGHT PROTECTE
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16、h Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 62509 Edition 1.0 2010-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Battery charge controllers for photovoltaic systems Performance and functioning Contrleurs de charge de batteries pour systmes photovoltaques Performance et fonctionnement INTERNAT
17、IONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 27.160 PRICE CODE CODE PRIX ISBN 978-2-88912-307-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 62509 IEC:2010 CONTENTS FORE WOR
18、D 4 1 Scop e 6 2 Normative references 6 3 Terms and definitions 6 4 Functionality and performance requirements of a PV BCC 8 4.1 Gene ra l . 8 4.2 Applicability of requirements . 8 4.3 Battery lifetime protection requirements 9 4.3.1 Prevent leakage current from battery to PV generator . 9 4.3.2 Bas
19、ic battery charging functions . 9 4.3.3 Charging regime . 9 4.3.4 Set-point security 10 4.3.5 Load disconnect capability . 11 4.4 Energy performance requirements . 11 4.4.1 Stand by self-consumption . 11 4.4.2 BCC efficiency 11 4.5 Protection and fail safe requirements . 11 4.5.1 Thermal performance
20、 11 4.5.2 Overcurrent operation 12 4.5.3 PV generator and battery reverse polarity 12 4.5.4 Open circuit on battery terminals (no battery connection) 12 4.6 User interface requirements 12 4.6.1 General 12 4.6.2 Operational information 12 4.6.3 User adjustable set-points and parameters 13 4.6.4 Alarm
21、s . 13 5 Tests . 13 5.1 General conditions for tests. 13 5.1.1 Setup and preconditioning for tests . 13 5.1.2 DC power sources for testing . 14 5.1.3 General test setup . 14 5.1.4 Reverse current test setup . 15 5.1.5 Charging cycle test setup . 16 5.1.6 Efficiency, thermal performance and PV overcu
22、rrent test setup 18 5.2 Battery lifetime protection tests . 19 5.2.1 Battery to PV generator leakage current test 19 5.2.2 Charging cycle tests 19 5.2.3 Load disconnect / load reconnect test . 20 5.3 Energy performance tests . 21 5.3.1 Standby self-consumption test 21 5.3.2 Efficiency test . 22 5.4
23、Protection and fail safe tests . 22 5.4.1 Thermal performance test 22 5.4.2 PV overcurrent protection test 23 5.4.3 Load over current protection test 23 5.4.4 Battery reverse polarity test 24 62509 IEC:2010 3 5.4.5 PV generator reverse polarity test . 24 5.4.6 Battery open circuit test . 25 5.5 User
24、 interface tests 25 Annex A (informative) Battery charging guideline 27 Figure 1 General test setup 15 Figure 2 Reverse current test setup . 16 Table 1 Requirements for self consumption 11 Table A.1 Battery charging setpoint guideline . 27 4 62509 IEC:2010 INTERNATIONAL ELECTROTECHNICAL COMMISSION _
25、 BATTERY CHARGE CONTROLLERS FOR PHOTOVOLTAIC SYSTEMS PERFORMANCE AND FUNCTIONING 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 prom
26、ote 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, Technical Reports, Publicly Available Specifications (PAS) and Guides
27、(hereafter referred 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 als
28、o participate in this 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 possi
29、ble, an international 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. Whi
30、le 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 or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake
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32、on of conformity. Independent 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 th
33、is publication. 7) No 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 in
34、direct, 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 publication. Use of the referenced publications is indispensable for
35、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 such patent rights. International Standard IEC 62509 has been prep
36、ared by IEC technical committee 82: Solar photovoltaic energy systems. This standard is to be read in conjunction with IEC 62093. The text of this standard is based on the following documents: FDIS Report on voting 82/614/FDIS 82/623/RVD Full information on the voting for the approval of this standa
37、rd 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. 62509 IEC:2010 5 The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the
38、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 62509 IEC:2010 BATTERY CHARGE CONTROLLERS FOR PHOTOVOLTAIC SYSTEMS PERFORMANCE AND FUNCTIONING 1 Scop
39、e This International Standard establishes minimum requirements for the functioning and performance of battery charge controllers (BCC) used with lead acid batteries in terrestrial photovoltaic (PV) systems. The main aims are to ensure BCC reliability and to maximise the life of the battery. This sta
40、ndard shall be used in conjunction with IEC 62093, which describes test and requirements for intended installation application. In addition to the battery charge control functions, this Standard addresses the following battery charge control features: photovoltaic generator charging of a battery, lo
41、ad control, protection functions, interface functions. This standard does not cover MPPT performance, but it is applicable to BCC units that have this feature. This standard defines functional and performance requirements for battery charge controllers and provides tests to determine the functioning
42、 and performance characteristics of charge controllers. It is considered that IEC 62093 is used to determine the construction requirements for the intended installation which includes but is not limited to aspects such as the enclosure, physical connection sturdiness and safety. This standard was wr
43、itten for lead acid battery applications. It is not limited in terms of the BCC capacity to which it may be applied, however, the requirements for test equipment when applied to BCC with high voltage or current, for example, greater than 120 V or 100 A, may be difficult to achieve. These approaches
44、may be applicable to other power sources and other battery technologies like Ni-Cd batteries by using the corresponding values of cell voltages. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition ci
45、ted applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 61836, Solar photovoltaic energy systems Terms, definitions and symbols IEC 62093, Balance-of-system components for photovoltaic systems Design qualification natural environment
46、s 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61836 apply as well as the following. 3.1 battery charge controller (BCC) an electronic device/s that controls the charging and discharging of the battery in a photovoltaic energy system. The charge c
47、ontrol function may be included as a subsystem within another product. 62509 IEC:2010 7 3 . 2 bulk charge initial charging stage aimed at restoring the battery charge as fast as possible, in which all the available charging current from the PV generator, or the maximum current rating of the BCC, is
48、delivered to the battery. NOTE Sometimes referred to as boost charge. 3 . 3 bulk voltage threshold voltage used by the BCC as a control parameter to change charging mode from bulk charge to the next charging stage NOTE Sometimes referred to as boost voltage. 3 . 4 bulk charge delay time the amount o
49、f time for which the bulk voltage is to be maintained before the change from the bulk charge stage to the next charging stage is made 3 . 5 equalise current a constant current applied to the battery during equalise charge; normally determined by battery manufacturer recommendations 3 . 6 equalise charge a relatively high voltage charging stage that is maintained for a defined time. Charge control can be achieved
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