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1、 TECHNICAL SPECIFICATION IEC TS 62257-2 First edition 2004-05 Recommendations for small renewable energy and hybrid systems for rural electrification Part 2: From requirements to a range of electrification systems Reference number IEC/TS 62257-2:2004(E) Publication numbering As from 1 January 1997 a
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8、+41 22 919 02 11 Fax: +41 22 919 03 00 TECHNICAL SPECIFICATION IEC TS 62257-2 First edition 2004-05 Recommendations for small renewable energy and hybrid systems for rural electrification Part 2: From requirements to a range of electrification systems PRICE CODE IEC 2004 Copyright - all rights reser
9、ved No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Swi
10、tzerland Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch XB For price, see current catalogue Commission Electrotechnique Internationale International Electrotechnical Commission -,-,- 2 TS 62257-2 IEC:2004(E) CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 N
11、ormative references8 3 Terms and definitions .9 4 Methodology for non technical preliminary studies.10 4.1 Place and role of preliminary studies in a decentralized rural electrification project.10 4.2 Specifications of the preliminary study .10 4.3 The stages of a socio-economic study15 5 Classifica
12、tion of electrification systems .15 5.1 Introduction to a range of systems .15 5.2 Users requirements .16 5.3 Typology of qualitative requirements 16 5.4 Typology of quantitative requirements17 5.5 Classification for electricity services provided18 5.6 Assisted selection of production subsystem .18
13、5.7 Typology of decentralized electrification systems .18 6 Electrification systems architecture .21 6.1 General .21 6.2 General presentation of isolated electrification systems21 6.3 Combining subsystems22 6.4 Functional diagrams 24 6.5 Related references 25 6.6 Limits between production, distribut
14、ion and demand/application subsystems 25 6.7 Summary of the different electrification system types .25 Annex A (informative) Stages of a socio-economic study (see Clause 4)26 A.1 General 26 A.2 Preparation phase 26 A.3 Drawing up of the questionnaires, choice of surveyors and choice of sample.27 A.4
15、 Conducting the survey - Analysis of the results27 A.5 Extrapolation of the results .27 Annex B (informative) Analysis of the type of receivers installed versus types of use and demonstrating seasonable variability (where applicable) (see Clause 5).28 B.1 Domestic use28 B.2 Analysis of the type of r
16、eceivers versus usage types .30 Annex C (informative) Supply quality indicators for isolated electrification systems (see Clause 5) 32 -,-,- TS 62257-2 IEC:2004(E) 3 Annex D (informative) Assisted selection of production subsystem (see Clause 5) .34 D.1 Characteristics of possible production subsyst
17、ems34 D.2 Assisted selection of a decentralized production system suited to the requirement.34 Annex E (informative) Functional diagrams (See Clause 6)36 E.1 Glossary of symbols36 E.2 Architectures of systems.37 Figure 1 Example of the content of a non technical preliminary study11 Figure 2 Systems
18、architecture and dispatchable energy19 Figure 3 General configuration of an electrification system23 Figure A.1 Flowchart of the stages of a socio economic study.26 Figure D.1 Better adequacy of production subsystems solutions with supply availability and daily duration of service.35 Figure E.1 Type
19、 T1I-a system .38 Figure E.2 Type T1I-b system .39 Figure E.3 Type T1I-c system .40 Figure E.4 Type T1I-d system .41 Figure E.5 Type T2I system 43 Figure E.6 Type T3I-a system .45 Figure E.7 Type T3I-b system .46 Figure E.8 Type T4I system 48 Figure E.9 Type T5I system 49 Figure E.10 Type T6I system
20、 50 Figure E.11 General architecture of a micropower plant supplying a microgrid 52 Figure E.12 Type T2C system.53 Figure E.13 Type T3C-a system55 Figure E.14 Type T3C-b system56 Figure E.15 Type T4C-a system58 Figure E.16 Type T4C-b system59 Figure E.17 Type T5C system.61 Figure E.18 Type T6C syste
21、m.63 Table 1 Application types and types of uses16 Table 2 Expected quality of the supply17 Table 3 Synthesis of quantitative requirements/category (examples of type of user and use) .17 Table 4 Typology of decentralized electrification systems18 Table 5 Preliminary range of relevant (as a minimum)
22、decentralized electrification systems 20 Table 6 Recapitulation of characteristics of different types of isolated electrification systems 25 Table C.1 Combined categorization 32 Table C.2 Service specification (example) 33 -,-,- 4 TS 62257-2 IEC:2004(E) Table D.1 Principles and characteristics of pr
23、oduction subsystems .34 Table E.1 Glossary of symbols .36 Table E.2 List of cases, type T1I.37 Table E.3 List of cases, type T3I.44 Table E.4 List of cases, type T3C .54 Table E.5 List of cases, type T4C .57 TS 62257-2 IEC:2004(E) 5 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ RECOMMENDATIONS FOR SMA
24、LL RENEWABLE ENERGY AND HYBRID SYSTEMS FOR RURAL ELECTRIFICATION Part 2: From requirements to a range of electrification systems FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC Na
25、tional 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, Technical Reports, Pub
26、licly Available Specifications (PAS) and Guides (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- gove
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29、ed by IEC National Committees in that sense. While 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 internationa
30、l uniformity, IEC National Committees undertake to apply IEC Publications 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 latt
31、er. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its di
32、rectors, 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 (including legal fees) and expenses aris
33、ing 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 application of this publication. 9) Attention is
34、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. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstanc
35、es, a technical committee may propose the publication of a technical specification when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts, or the subject is still under technical development or where, for any other reason, there is the
36、 future but no immediate possibility of an agreement on an International Standard. Technical specifications are subject to review within three years of publication to decide whether they can be transformed into International Standards. IEC 62257-2, which is a technical specification, has been prepar
37、ed by IEC technical committee 82: Solar photovoltaic energy systems. This technical specification is to be used in conjunction with IEC 62257 series. 6 TS 62257-2 IEC:2004(E) The text of this technical specification is based on the following documents: Enquiry draft Report on voting 82/302/DTS 82/32
38、0/RVC Full information on the voting for the approval of this technical specification 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. It was developed in cooperation with other IEC technical commi
39、ttees and subcommittees dealing with renewable energies and related matters, namely technical committee 21 (“Secondary cells and batteries“), subcommittee 21A (“Secondary cells and batteries containing alkaline or other non- acid electrolytes“), technical committee 64 (“Electrical installations and
40、protection against electric shock“), technical committee 88 (“Wind turbines“), and others. This document is based on IEC/PAS 62111(1999); it cancels and replaces the relevant parts of IEC/PAS 62111. The committee has decided that the contents of this publication will remain unchanged until 2007. At
41、this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. TS 62257-2 IEC:2004(E) 7 INTRODUCTION The IEC 62257 series intends to provide to different players involved in rural electrific
42、ation projects (such as project implementers, project contractors, project supervisors, installers, etc.) documents for the setting up of renewable energy and hybrid systems with AC voltage below 500 V, DC voltage below 50 V and power below 50 kVA. These documents are recommendations: a) to choose t
43、he right system for the right place, b) to design the system, c) to operate and maintain the system. These documents are focused only on rural electrification concentrating on but not specific to developing countries. They shall not be considered as all inclusive to rural electrification. The docume
44、nts try to promote the use of renewable energies in rural electrification; they do not deal with clean mechanisms development at this time (CO2 emission, carbon credit, etc.). Further developments in this field could be introduced in future steps. This consistent set of documents is best considered
45、as a whole with different parts corresponding to items for safety, sustainability of systems and at the lowest life cycle cost as possible. One of the main objectives is to provide the minimum sufficient requirements, relevant to the field of application that is: small renewable energy and hybrid of
46、f-grid systems. The purpose of this part of the IEC 62257 series is to propose a range of renewable energy based electrification systems able to meet the requirements of customers identified in the field of decentralized rural electrification projects. 8 TS 62257-2 IEC:2004(E) RECOMMENDATIONS FOR SM
47、ALL RENEWABLE ENERGY AND HYBRID SYSTEMS FOR RURAL ELECTRIFICATION Part 2: From requirements to a range of electrification systems 1 Scope The scope of this part of the IEC 62257 series is to propose a methodological approach for the setting up and carrying out of socio-economic studies as part of th
48、e framework of decentralized rural electrification projects. It is addressed to project teams and in particular to experts in charge of socio-economic studies in international projects. The amount of detail gathered and the requisite number of experts needed would depend on the scale of the proposed project. For large projects involving many households, a detailed study would be required, for a project which involves a single or few households, the study could be truncated. The information coming from such preliminary studies could be used for several pur