BS-EN-61400-2-2006.pdf
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1、BRITISH STANDARD BS EN 61400-2:2006 Wind turbines Part 2: Design requirements for small wind turbines The European Standard EN 61400-2:2006 has the status of a British Standard ICS 27.180 ? BS EN 61400-2:2006 This British Standard was published under the authority of the Standards Policy and Strateg
2、y Committee on 31 August 2006 BSI 2006 ISBN 0 580 48551 X National foreword This British Standard is the official English language version of EN 61400-2:2006. It is identical with IEC 61400-2:2006. It supersedes BS EN 61400-2:1996 which is withdrawn. The UK participation in its preparation was entru
3、sted to Technical Committee PEL/88, Wind turbine systems, 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 t
4、his document may be found in the BSI Catalogue under the 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 c
5、ontract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposal
6、s for change, and keep UK interests informed; monitor related international 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 91 and a back cover. The BSI copyright notice displayed in
7、 this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD EN 61400-2 NORME EUROPENNE EUROPISCHE NORM July 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique
8、 Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61400-2:2006 E ICS 27.180 Supersedes EN 61400-2:1996 English version
9、 Wind turbines Part 2: Design requirements for small wind turbines (IEC 61400-2:2006) Arognrateurs Partie 2: Exigences en matire de conception des petits arognrateurs (CEI 61400-2:2006) Windenergieanlagen Teil 2: Sicherheit kleiner Windenergieanlagen (IEC 61400-2:2006) This European Standard was app
10、roved by CENELEC on 2006-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations 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 nat
11、ional standards may be obtained on application to the Central Secretariat or to any CENELEC 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 langua
12、ge and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuan
13、ia, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Foreword The text of document 88/254/FDIS, future edition 2 of IEC 61400-2, prepared by IEC TC 88, Wind turbines, was submitted to the IEC-CENELEC paralle
14、l vote and was approved by CENELEC as EN 61400-2 on 2006-05-01. This European Standard supersedes EN 61400-2:1996. The most significant changes with respect to EN 61400-2:1996 are: revised simplified equations based upon recent test and research results; several parameters in the simplified equation
15、s shall now be based upon test results; added option for use of aeroelastic models instead of simplified equations; expanded testing requirements. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or b
16、y endorsement (dop) 2007-02-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-05-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61400-2:2006 was approved by CENELEC as a European Standard wit
17、hout any modification. _ EN 61400-2:2006 2 3 EN 61400-2:2006 CONTENTS 1 Scope 6 2 Normative references .6 3 Terms and definitions .7 4 Symbols and abbreviated terms 14 4.1 Symbols 14 4.2 Coordinate system.18 5 Principal elements 19 5.1 General.19 5.2 Design methods.19 5.3 Quality assurance19 6 Exter
18、nal conditions .21 6.1 General.21 6.2 SWT classes .21 6.3 Wind conditions.22 6.4 Other environmental conditions28 6.5 Electrical load conditions .30 7 Structural design 31 7.1 General.31 7.2 Design methodology 31 7.3 Loads and load cases31 7.4 Simplified load model.33 7.5 Aeroelastic modelling.39 7.
19、6 Load measurements 43 7.7 Stress calculation 43 7.8 Safety factors 44 7.9 Limit state analysis45 8 Protection and shutdown system.46 8.1 General.46 8.2 Functional requirements of the protection system .46 8.3 Manual shutdown.46 8.4 Shutdown for maintenance.46 9 Testing.47 9.1 General.47 9.2 Tests t
20、o verify design data.47 9.3 Mechanical load testing .48 9.4 Duration testing.49 9.5 Mechanical component testing .52 9.6 Safety and function53 9.7 Environmental testing 54 9.8 Electrical .54 EN 61400-2:2006 4 10 Electrical system 54 10.1 General.54 10.2 Protective devices .54 10.3 Disconnect device
21、.54 10.4 Earthing systems.55 10.5 Lightning protection .55 10.6 Electrical conductors and cables55 10.7 Electrical loads55 11 Support structure57 11.1 General.57 11.2 Dynamic requirements .57 11.3 Environmental factors57 11.4 Earthing 57 11.5 Foundation 57 11.6 Turbine access design loads57 12 Docum
22、entation requirements 57 12.1 General.57 12.2 Installation.58 12.3 Operation 58 12.4 Maintenance and routine inspection .59 13 Wind turbine markings 60 Annex A (informative) Type certification of small wind turbines .61 Annex B (normative) Design parameters for describing SWT class S 64 Annex C (inf
23、ormative) Stochastic turbulence models.65 Annex D (informative) Deterministic turbulence description.67 Annex E (informative) Partial safety factors for materials 69 Annex F (informative) Development of the simple design equations 79 Annex ZA (normative) Normative references to international publica
24、tions with their corresponding European publications 90 Bibliography .89 Figure 1 Definition of the system of axes for HAWT 18 Figure 2 IEC 61400-2 decision path20 Figure 3 Characteristic wind turbulence24 Figure 4 example of extreme operating gust (N = 1, Vhub = 25 m/s) .25 Figure 5 Example of extr
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