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GB/T 42731-2023: Technical requirements for the microgrid
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GB/T 42731-2023: Technical requirements for the microgrid

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ICS 29:240 CCSF19 National Standards of People's Republic of China Microgrid Technical Requirements Released on 2023-05-23 2024-06-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 General requirements 2 5 Distributed Power 2 6 Load 3 7 Transformation and distribution system 3 8 Relay protection and safety automatic device 3 9 Monitoring and Energy Management System 4 10 Communication 4 11 metering 4 Appendix A (Informative) Typical Architecture of Microgrid Primary System 5

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Electricity Council: This document is under the jurisdiction of the National Microgrid and Distributed Power Grid-connected Standardization Technical Committee (SAC/TC564): This document was drafted by: State Grid Shanghai Energy Internet Research Institute Co:, Ltd:, State Grid Corporation of China, China Electric Power Research Institute Co:, Ltd:, State Grid Fujian Electric Power Co:, Ltd:, Xinjiang Goldwind Technology Co:, Ltd:, State Grid Zhejiang Electric Power Co:, Ltd:, Yunnan Power Grid Co:, Ltd: Electric Power Research Institute, State Grid Jiangsu Electric Power Co:, Ltd:, State Nuclear Power Planning and Design Research Institute Co:, Ltd:, China Science and Technology Institute of Electrical Engineering, Jiangsu Qunling Energy Technology Co:, Ltd:, Beijing Sifang Relay Engineering Technology Co:, Ltd:, Guodian Nanjing Automation Co:, Ltd: Co:, Ltd:, Nanjing Daquan Automation Technology Co:, Ltd: The main drafters of this document: Ji Yu, Niu Geng, Wu Ming, Liu Haitao, Zhang Yi, Lu Guangxian, Yu Hui, Chen Lei, Zhang Jialei, Yuan Yubo, Fan Yuanliang, Huang Yuqi, Zhang Wei, Su Shi, Zhao Bo, Pei Wei, Zhou Weiwei, Jia Yunhui, Huang Xinghua, Zhang Jinbin, Qiao Feng, He Huawei, Kou Lingfeng, Gao Bo, Cao Junling, Sheng Degang: Microgrid Technical Requirements

1 Scope

This document specifies the distributed power supply, load, power transformation and distribution system, relay protection and safety automatic device, monitoring and energy management in the microgrid: Technical requirements for systems, communications, metering, etc: This document is applicable to the planning and design of AC microgrids with a voltage level of 35kV and below and a maximum system load capacity of no more than 20MW: design, construction and operation:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 156 standard voltage GB/T 14285 Technical Regulations for Relay Protection and Safety Automatic Devices GB/T 17468 Guidelines for Selection of Power Transformers GB :20052 Power Transformer Energy Efficiency Allowable Values and Energy Efficiency Grades GB/T 20270 Information Security Technology Network Basic Security Technical Requirements GB/T 33589 Technical Regulations for Microgrid Connected to Power System GB/T 33593 Distributed Power Grid-connected Technical Requirements GB/T 34129 Microgrid Access Distribution Network Test Specification GB/T 34930 Operation control specification for microgrid access to distribution network GB/T 36270 Microgrid Monitoring System Technical Specifications GB/T 36274 Microgrid Energy Management System Technical Specifications GB/T 36572 Guidelines for Network Security Protection of Electric Power Monitoring System GB/T 38953 Microgrid Relay Protection Technical Regulations GB 50052 Code for Design of Power Supply and Distribution System GB 50054 Code for Design of Low-Voltage Power Distribution GB 50061 Code for Design of 66kV and Below Overhead Power Lines GB 50217 Design Standards for Power Engineering Cables GB 50797 Code for Design of Photovoltaic Power Stations GB 51048 Code for Design of Electrochemical Energy Storage Power Stations GB 51096 Code for Design of Wind Farms GB/T 51308 Offshore Wind Farm Design Standards GB/T 51341 Microgrid Engineering Design Standards DL/T 448 Technical Management Regulations for Electric Energy Metering Devices DL/T 584 3kV~110kV Power Grid Relay Protection Device Operation Setting Regulations DL/T 634:5101 Telecontrol Equipment and Systems Part 5-101: Supporting Standards for Transmission Protocol Basic Telecontrol Tasks DL/T 634:5103 Telecontrol Equipment and System Part 5-103: Transmission Protocol Relay Protection Equipment Information Interface Supporting Standard ...