1、 IEC TS 62257-2 Edition 2.0 2015-12 TECHNICAL SPECIFICATION Recommendations for renewable energy and hybrid systems for rural electrification Part 2: From requirements to a range of electrification systems IEC TS 62257-2:2015-12(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva,
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11、nergy and hybrid systems for rural electrification Part 2: From requirements to a range of electrification systems INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 27.160 ISBN 978-2-8322-3064-0 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained th
12、is publication from an authorized distributor. 2 IEC TS 62257-2:2015 IEC 2015 CONTENTS FOREWORD . 5 INTRODUCTION . 7 1 Scope 8 2 Normative references 8 3 Terms and definitions 8 4 Methodology for non-technical preliminary studies . 10 4.1 Place and role of preliminary studies in a decentralized rura
13、l electrification project 10 4.2 Specifications of the preliminary study 10 4.2.1 General . 10 4.2.2 Data for a better understanding of the project environment 11 4.2.3 Necessary data for the techno-economic study 12 4.2.4 Necessary data for the financial analysis . 14 4.2.5 Necessary data for the o
14、rganizational study 15 4.3 The stages of a socio-economic study 16 5 Classification of electrification systems 16 5.1 Introduction to a range of systems 16 5.2 Users requirements . 16 5.3 Typology of qualitative requirements . 16 5.3.1 Type of desired use . 16 5.3.2 Availability . 16 5.3.3 Quality o
15、f the supply 17 5.4 Typology of quantitative requirements . 17 5.5 Classification for electricity services provided . 18 5.6 Assisted selection of production subsystem 18 5.7 Typology of decentralized electrification systems 19 5.7.1 General . 19 5.7.2 Selection process 19 5.7.3 From user needs to e
16、lectrification system Summary for a range of electrification systems . 20 6 Electrification systems architecture 21 6.1 General . 21 6.2 General presentation of isolated electrification systems 22 6.2.1 General . 22 6.2.2 Production subsystem 22 6.2.3 Distribution subsystem . 22 6.2.4 User or applic
17、ation subsystem or demand subsystem 22 6.3 Combining subsystems . 23 6.4 Functional diagrams 25 6.5 Related references 25 6.6 Limits between production, distribution and demand/application subsystems 26 6.7 Summary of the different electrification system types 26 Annex A (informative) Stages of a so
18、cio-economic study . 27 A.1 General . 27 A.2 Preparation phase. 27 IEC TS 62257-2:2015 IEC 2015 3 A.3 Drawing up of the questionnaires choice of surveyors and choice of sample 28 A.4 Conducting the survey Analysis of the results 28 A.5 Extrapolation of the results . 28 Annex B (informative) Analysis
19、 of the type of receivers installed versus types of use and demonstrating seasonable variability (where applicable) . 29 B.1 Domestic use 29 B.1.1 General . 29 B.1.2 Utilisation Example 1 30 B.1.3 Utilisation Example 2 31 B.2 Analysis of the type of receivers versus usage types 32 B.2.1 General . 32
20、 B.2.2 Health and care centre 32 B.2.3 Worship places 32 B.2.4 Community centre 32 B.2.5 School . 33 B.2.6 Administrative premises . 33 B.2.7 Communication system 33 B.2.8 Public lighting 33 B.2.9 Pumping 33 B.2.10 Battery charging station . 34 Annex C (informative) Supply quality indicators for iso
21、lated electrification systems 35 Annex D (informative) Assisted selection of production subsystem 36 D.1 Characteristics of possible production subsystems 36 D.2 Assisted selection of a decentralized production system suited to the requirement 36 Annex E (informative) Functional diagrams 38 E.1 Glos
22、sary of symbols 38 E.2 Architectures of systems . 39 E.2.1 Type T 1 I: REN Systems operating with no storage (in sync with solar, wind or water energy sources) REN production . 39 E.2.2 Type T 2 I: Individual electrification systems REN production with energy storage 43 E.2.3 Type T 3 I: Individual
23、electrification systems: (REN + diesel) production without energy storage 46 E.2.4 Type T 4 I: Individual electrification systems: (RE + diesel) production with energy storage . 49 E.2.5 Type T 5 I: Individual electrification systems: genset only without storage . 51 E.2.6 Type T 6 I: Individual ele
24、ctrification systems: genset only with storage 52 E.2.7 Type T 1 C: Collective electrification systems: REN only without storage . 53 E.2.8 Type T 2 C: Collective electrification systems: REN Micropower plant supplying a microgrid . 53 E.2.9 Type T 3 C: Collective electrification systems: Multi sour
25、ces micropower plant (RE + diesel) without energy storage, supplying a microgrid . 56 E.2.10 Type T 4 C: Collective electrification systems: Multi sources micropower plant (RE + diesel) with energy storage supplying a microgrid . 59 E.2.11 Type T 5 C: Collective electrification systems: Diesel micro
26、power plant supplying a microgrid . 62 E.2.12 Type T 6 C: Collective electrification systems: Diesel micropower plant with energy storage supplying a microgrid . 64 4 IEC TS 62257-2:2015 IEC 2015 Figure 1 Example of the content of a non-technical preliminary study 11 Figure 2 Systems architecture an
27、d dispatchable energy . 20 Figure 3 General configuration of an electrification system 24 Figure A.1 Flowchart of the stages of a socio economic study 27 Figure D.1 Better adequacy of production subsystems solutions with supply availability and daily duration of service 37 Figure E.1 Type T 1 I-a sy
28、stem 40 Figure E.2 Type T 1 I-b system 41 Figure E.3 Type T 1 I-c system 42 Figure E.4 Type T 1 I-d system 43 Figure E.5 Type T 2 I system . 45 Figure E.6 Type T 3 I-a system 47 Figure E.7 Type T 3 I-b system 48 Figure E.8 Type T 4 I system . 50 Figure E.9 Type T 5 I system . 51 Figure E.10 Type T 6
29、 I system . 52 Figure E.11 General architecture of a micropower plant supplying a microgrid . 54 Figure E.12 Type T 2 C system 55 Figure E.13 Type T 3 C-asystem . 57 Figure E.14 Type T 3 C-b system . 58 Figure E.15 Type T 4 C-a system . 60 Figure E.16 Type T 4 C-b system . 61 Figure E.17 Type T 5 C
30、system 63 Figure E.18 Type T 6 Csystem 65 Table 1 Application types and types of uses . 16 Table 2 Expected quality of the supply . 17 Table 3 Synthesis of quantitative requirements/category Examples of type of user and use. 18 Table 4 Typology of decentralized electrification systems 19 Table 5 Pre
31、liminary range of relevant (as a minimum) decentralized electrification systems 21 Table 6 Recapitulation of characteristics of different types of isolated electrification systems 26 Table C.1 Combined categorization . 35 Table C.2 Service specification (example) . 35 Table D.1 Principles and charac
32、teristics of production subsystems 36 Table E.1 Glossary of symbols . 38 Table E.2 List of cases, type T 1 I 39 Table E.3 List of cases, type T 3 I 46 Table E.4 List of cases, type T 3 C 56 Table E.5 List of cases, type T 4 C 59 IEC TS 62257-2:2015 IEC 2015 5 INTERNATIONAL ELECTROTECHNICAL COMMISSIO
33、N _ RECOMMENDATIONS FOR 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 electrotechnic
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46、ide whether they can be transformed into International Standards. IEC 62257-2, which is a technical specification, has been prepared by IEC technical committee 82: Solar photovoltaic energy systems. 6 IEC TS 62257-2:2015 IEC 2015 This second edition cancels and replaces the first edition issued in 2
47、004. It constitutes a technical revision. The main technical changes with regard to the previous edition are as follows: redefine the maximum AC voltage from 500 V to 1 000 V, the maximum DC voltage from 750 V to 1 500 V; removal of the limitation of 100 kVA system size. Hence the removal of the wor
48、d “small” in the title and related references in this technical specification. This technical specification is to be used in conjunction with the other documents of the IEC 62257 series. The text of this technical specification is based on the following documents: Enquiry draft Report on voting 82/9
49、47/DTS 82/998A/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. A list of all parts in the IEC 62257 series, published under the general title Recommendations for renewable energy and hybrid systems for rural electrification, can be found on the IEC webs
