1、BRITISH STANDARD BS EN 62124:2005 Photovoltaic (PV) stand-alone systems Design verification The European Standard EN 62124:2005 has the status of a British Standard ICS 27.160 BS EN 62124:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7
2、 April 2005 BSI 7 April 2005 ISBN 0 580 45744 3 National foreword This British Standard is the official English language version of EN 62124:2005. It is identical with IEC 62124:2004. The UK participation in its preparation was entrusted to Technical Committee GEL/82, Solar photovoltaic energy syste
3、ms, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under t
4、he section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct applica
5、tion. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related in
6、ternational and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 39 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amen
7、dments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 62124 NORME EUROPENNE EUROPISCHE NORM March 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secreta
8、riat: rue de Stassart 35, B - 1050 Brussels 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62124:2005 E ICS 27.160 English version Photovoltaic (PV) stand-alone systems Design verification (IEC 62124:2004) Systmes photovolta
9、ques (PV) autonomes Vrification de la conception (CEI 62124:2004) Photovoltaische (PV)-Inselsysteme - Bauarteignung und Typprfung (IEC 62124:2004) This European Standard was approved by CENELEC on 2005-02-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
10、te 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 Central Secretariat or to any CENELEC member. This European Standard
11、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 Central Secretariat has the same status as the official versions. CENELEC members are the national e
12、lectrotechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom
13、. Foreword The text of document 82/355/FDIS, future edition 1 of IEC 62124, prepared by IEC TC 82, Solar photovoltaic energy systems, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 62124 on 2005-02-01. The following dates were fixed: latest date by which the EN has
14、to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2005-11-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2008-02-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the I
15、nternational Standard IEC 62124:2004 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 60721-2-1 NOTE Harmonized as HD 478.2.1 S1:1989 (not modified). IEC 61277 NOT
16、E Harmonized as EN 61277:1998 (not modified). IEC 61724 NOTE Harmonized as EN 61724:1998 (not modified). IEC 61725 NOTE Harmonized as EN 61725:1997 (not modified). ISO/IEC 17025 NOTE Harmonized as EN ISO/IEC 17025:2000 (not modified). _ Page2 EN62124:2005 CONTENTS 1 Scope and object5 2 Normative ref
17、erences.5 3 Acronyms.6 4 Testing methods.6 5 Marking7 6 Testing.8 7 Pass criteria.9 8 Design specifications10 9 User manual.12 10 Technicians manual13 11 Major defects13 12 Load specification 14 13 Performance test14 14 Outdoor testing.18 15 Indoor testing using a solar simulator .20 16 Indoor testi
18、ng using a PV module simulator25 17 Determination of the system balance point .26 18 Modifications27 19 Report27 Annex A (normative) Classification of irradiation and systems28 Annex B (normative) Instrumentation and equipment for the system test29 Annex C (normative) Determination of the module out
19、put for the indoor testing using a PV module simulator31 Annex ZA (normative) Normative references to international publications with their corresponding European publications .37 Bibliography38 Figure 1 Flow diagram representing the verification process 8 Figure 2 Sample test profile for the stand-
20、alone PV system performance test 17 Figure 3 Daily irradiance profiles for functional test, 10 days22 Figure 4 System characterisation chart, charge sequence example with 3 irradiation profiles and 10 cycles. Discharge: constant load profile 27 Figure C.1 Flowchart to arrive at appropriate settings
21、for a constant current source simulating the PV module .31 Figure C.2 Set of IV characteristics for a daily irradiance profile (example)33 Figure C.3 Approximation of array characteristics by a set of array operation lines 34 Figure C.4 Iteration process for current adjustment35 Page3 EN62124:2005 F
22、igure C.5 Experimental set-up for PV system performance testing .36 Figure C.6 Flow chart for simulation of the array performance presented for one time step of the PTOC profile .37 Table 1 Acceptable ranges for the module temperature depending on the irradiance .18 Table 2 Cycles of the performance
23、 test23 Table 3 Typical step profiles for daily irradiation cycles23 Table A.1 Irradiation classes28 Table B.1 Parameters to be measured/determined.30 Page4 EN62124:2005 PHOTOVOLTAIC (PV) STAND-ALONE SYSTEMS DESIGN VERIFICATION 1 Scope and object The specifications, test methods and procedures inclu
24、ded in this document cover stand-alone photovoltaic (PV) systems. It covers systems containing one or more PV modules, a support structure, storage batterie(s), a charge controller and typical DC loads such as lights, radio, television and refrigerators. AC loads with dedicated inverters are conside
25、red as DC loads. The load as specified by the manufacturer is an integral part of the PV system with regards to the design verification. The focus of the test methods and procedures in this document is limited to system performance evaluation. Individual sub-systems and components may be monitored,
26、but only to evaluate the performance of the overall system. The results of this test are applicable to the exact components that are tested. Any changes in components or components specifications require design verification. NOTE An exception to this rule is the load. Retesting is not necessary, if
27、the nominal power of the load and its characteristics are not altered, always provided that the new loads are also type tested (provided a type test is available) and the operation frequency of the loads electronics controller (if any) do not vary more than 50 % from the new one to the one tested an
28、d being replaced. Hence, the replacement of a pure ohmic load by lights using high frequency electronic ballasts would require retesting, but not the change from one electronic lighting product to another one. The standard is valid for system testing both for outdoors in prevailing conditions and in
29、doors under simulated conditions. The testing conditions are intended to represent the majority of climatic zones for which these systems are designed. The object of this standard is to verify system design and performance of stand-alone photovoltaic systems. While individual components may be quali
30、fied to environmental and safety standards, the assembled system needs further verification, to ensure that the components operate properly together as specified by the system manufacturer. The performance test consists of a check of the functionality, the autonomy and ability to recover after perio
31、ds of low state-of-charge of the battery, and hence gives reasonable assurance that the system will not fail prematurely. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undate
32、d references, the latest edition of the referenced document (including any amendments) applies. IEC 60364-7-712, Electrical installations of buildings Part 7-712: Requirements for special installations or locations Solar photovoltaic (PV) power supply systems Page5 EN62124:2005 IEC 60904-1, Photovol
33、taic devices Part 1: Measurement of photovoltaic current-voltage characteristics IEC 60904-2, Photovoltaic devices Part 2: Requirements for reference solar cells IEC 60904-5:1993, Photovoltaic devices Part 5: Determination of the equivalent cell temperature (ECT) of photovoltaic (PV) devices by the
34、open-circuit voltage method IEC 61215, Crystalline silicon terrestrial photovoltaic (PV) modules Design qualification and type approval IEC 61646, Thin-film silicon terrestrial photovoltaic (PV) modules Design qualification and type approval IEC 61730-1, Photovoltaic (PV) module safety qualification
35、 Part 1: Requirements for construction IEC 61730-2, Photovoltaic (PV) module safety qualification Part 2: Requirements for testing IEC 62093, Balance-of-system components for photovoltaic systems Design qualification 13 Acronyms AC Alternating current DAS Data acquisition system DC Direct current DR
36、T Daily run time (of the load) FS Full screen HVD High voltage disconnect (of the charge controller) LVD Low voltage disconnect (of the charge controller) NOCT Nominal operating cell temperature PV Photovoltaic(s) STC Stand testing conditions UBC Usable battery capacity VI Visual inspection 4 Testin
37、g methods 4.1 Methods The procedures of the performance test are subdivided into 3 different tests: the functional test, the autonomy test and the recovery test. Outdoor and indoor tests are feasible. 1To be published. Page6 EN62124:2005 It is recommended that an outdoor test be only performed if th
38、e outdoor testing conditions at the testing site are similar to the outdoor conditions simulated in this standard. If the outdoor conditions at the testing site greatly differ, an indoor test is recommended. The tests in this standard are performed under conditions of irradiance and temperature that
39、 cover a large part of the world in which these systems are being installed. However these tests can be adapted to meet specific climatic conditions, if these are significantly different from the testing conditions in this standard. 4.2 Sampling Two complete systems for verification testing (plus sp
40、ares as specified by the supplier) shall be taken at random from a production batch or batches. The systems shall have been manufactured from specified materials and components in accordance with the relevant drawings and process sheets and have been subjected to the manufacturers normal inspection,
41、 quality control and production acceptance procedures. The systems shall be complete in every detail and shall be accompanied by the manufacturers handling, mounting and connecting instructions, including safety instructions. It is also essential that the batteries in the systems to be tested, which
42、 are an integral part of the design verification, are identical to the batteries which are later going to be sold in the field. A copy of the relevant test certificate of the PV modules, charge controllers, batteries and lamps shall be included. When the systems to be tested are prototypes of a new
43、design and not from production, this fact shall be noted in the test report (see Clause 19). 5 Marking The manufacturer shall provide equipment, sub-units and plug-in parts of the system with the following clear and indelible markings: name, monogram or symbol of the manufacturer/supplier; type or m
44、odel number; supply voltage, kind of voltage and frequency; serial or batch number; polarity of terminals or leads; connecting points for the incoming conductors; precautionary warning concerning special requirements for storage or handling. The date and place of manufacture shall be marked on the c
45、omponent or be traceable from the serial number. All components shall be provided with relevant documents concerning their rating, certificates and specifications in the language of the user and/or technician. Instead of a written users manual, illustrations may be used where appropriate. Page7 EN62
46、124:2005 Labelling on equipment shall be in accordance with good ergonomic principles so that warning notices, controls, indications, test facilities, fuses, etc., are sensibly placed and logically grouped to facilitate correct and unambiguous identification. 6 Testing The system shall be subjected
47、to the test sequences in this standard, carried out in the order laid down. In carrying out the tests, the tester shall strictly observe the manufacturers handling, mounting and connection instructions. Should one of the 2 previously sampled systems fail any test, another system meeting the requirem
48、ents of 4.2 shall be subjected to the whole of the relevant test sequence from the beginning. If this system also fails, the design shall be deemed not to have met the verification requirements. Figure 1 represents the verification process. Sampling General check (completeness, certificates, etc) Ou
49、tdoor test Indoor test PV sun simulator PV module simulator Performance characteristics Pass/fail IEC 1333/04 Figure 1 Flow diagram representing the verification process Page8 EN62124:2005 7 Pass criteria A system design shall be judged to have passed the verification test, if each test sample meets all the following criteria: 7.1 System completeness The system shall be complete, i.e.
