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GB/T 31519-2025: Wind energy generation systems - Wind turbine generator system under typhoon condition
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GB/T 31519-2025	English	619	Add to Cart	5 days [Need to translate]	Wind energy generation systems - Wind turbine generator system under typhoon condition
GB/T 31519-2015	English	609	Add to Cart	5 days [Need to translate]	Wind turbine generator system under typhoon condition

GB/T 31519-2025: Wind energy generation systems - Wind turbine generator system under typhoon condition

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 27.180 CCSF11 National Standards of the People's Republic of China Replaces GB/T 31519-2015 Wind power generation system typhoon type wind turbine generator set Published on 2025-12-31 Implemented on July 1, 2026 State Administration for Market Regulation The State Administration for Standardization issued a statement.

Table of contents

Preface III 1.Scope 1 2 Normative References 1 3.Terms and Definitions 1 4.Symbols and Abbreviations 2 4.1 Symbols and Units 2 4.2 Abbreviations 3 5.Safety level, typhoon conditions, and operating conditions 3. 5.1 Overview 3 5.2 Safety Level of Typhoon-Type Units 3 5.3 Typhoon Wind Conditions 4 5.4 Operating Condition Design and Load Calculation 6 6.Technical Requirements 8. 6.1 Basic Requirements 8 6.2 Structural Requirements 9 6.3 Corrosion Protection Requirements 9 6.4 Lightning Protection 9 6.5 Control and Protection System Requirements 9 6.6 Backup power requirement 10 7.Typhoon Environmental Assessment of Wind Farms 10 7.1 Risk assessment area determination 10 7.2 Data Collection and Analysis 10 7.3 Typhoon Impact Assessment 10 8 Installation, Operation and Maintenance 11 Appendix A (Informative) Structure of Tropical Cyclones 12 A.1 The scale of tropical cyclones 12 A.2 Eye of the Typhoon 12 A.3 Eyewall (or eye wall) 12 A.4 Tropical Cyclone Wind Field 12 A.5 Asymmetry of offshore tropical cyclone wind fields 12 Appendix B (Informative) Gust Coefficient and Turbulence Characteristics 13 B.1 Gust coefficient 13 B.2 Turbulence Characteristics 14 Appendix C (Informative). Statistical Analysis of Tropical Cyclones Affecting China 18 C.1 Statistical Analysis of Tropical Cyclones Affecting China's Coastal Waters 18 C.2 Statistical Analysis of Tropical Cyclones Affecting China's Deep Seas 18 C.3 Evolution of wind speed, wind direction and air pressure at wind farms with different typhoon paths 19 Appendix D (Informative) Typhoon Risk Analysis for Wind Turbine Generator Installation Site Selection 21 D.1 Data Collection 21 D.2 Report Content 21 D.3 Method for determining wind shear index 21 D.4 Air density calculation and wind speed correction under standard air density 21 D.5 10m height, 50-year return period, 10-minute average maximum wind speed 22 D.6 Engineering Typhoon Model 23 D.7 Time Conversion Factor 24 References 25

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 31519-2015 "Typhoon-type Wind Turbine Generator Sets". Compared with GB/T 31519-2015, the main differences are in structural adjustments. Aside from editorial changes, the main technical changes are as follows. ---The scope has been changed to include both maritime and land-based crews (see Chapter 1, Chapter 1 of the.2015 edition); ---Some abbreviations have been added (see 4.2); ---The definition of unit safety level has been changed (see 5.2, Chapter 5 of the.2015 edition); ---Added wind profiles during typhoons (see 5.3.6); ---Increased air density (see 5.3.7); ---The operating condition design has been revised, and an offshore unit operating condition has been added (see 5.4, Chapter 6 of the.2015 edition); ---The technical requirements have been changed (see Chapter 6, Chapter 6 of the.2015 edition); ---Typhoon environmental assessment of the installation site has been changed (see Chapter 7, Chapter 7 of the.2015 edition); --- Installation, operation, and maintenance have been changed (see Chapter 8, Chapter 8 of the.2015 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed by the China Machinery Industry Federation. This document is under the jurisdiction of the National Technical Committee on Standardization of Wind Power (SAC/TC50). This document was drafted by. Yunda Energy Technology Group Co., Ltd., and China Huaneng Group Clean Energy Technology Research Institute Co., Ltd. Goldwind Science & Technology Co., Ltd., Shanghai Power Equipment Complete Set Design & Research Institute Co., Ltd., Guangdong Wind Power Co., Ltd., China Three Gorges New Energy (Group) Co., Ltd., Huaneng Hainan Power Generation Co., Ltd. Clean Energy Branch, and Zhejiang Baimahu Laboratory have Limited Liability Company, Envision Energy Co., Ltd., Mingyang Smart Energy Group Co., Ltd., Shanghai Electric Wind Power Group Co., Ltd., Shanghai Electric Power Industrial Co., Ltd. China General Nuclear Power Co., Ltd., China Shipbuilding Industry Corporation Wind Power Co., Ltd., Hunan Xinglan Wind Power Co., Ltd., CRRC Shandong Wind Power Co., Ltd. The company, CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd., Sinovel Wind Power Technology (Group) Co., Ltd., and Beijing Certification Center Co., Ltd. The company, China Quality Certification Center Co., Ltd., Xi'an Thermal Power Research Institute Co., Ltd., Zhejiang Provincial Climate Center, Beijing Ruike Tongchuang Technology Co., Ltd. Limited Liability Company. The main drafters of this document are. Luo Yongshui, Cheng Chenguang, Lu Zhike, Jiang Yunyan, Li Tao, Deng Yi, Pan Hangping, Lü Rui, Li Jiafeng, Wang Tong, and Shen Xinhe. Wang Ruiyuan, Hou Peng, Liu Qingqing, Wu Tao, Tian Zhenya, Mei Le, Zhang Zhiwei, Wu Gang, Zou Liang, Xu Ke, Ge Chunli, Jiang Hongwu, Wang Haiyang, Xu Huali Wang Wei, Zhang Yu, Wang Ying, Xu Jin, Feng Tao, Lu Chao, Zhang Chi. The release history of this document and the document it replaces is as follows. ---First published in.2015 as GB/T 31519-2015; ---This is the first revision. Wind power generation system typhoon type wind turbine generator set

1 Scope

This document specifies the design and technical requirements for typhoon-type wind turbine generators (hereinafter referred to as "generators"), and describes typhoon models and This document defines the operating conditions under typhoon conditions. It specifies the mechanical, electrical, control, and protection systems of the unit under typhoon conditions. Requirements for operation and maintenance, etc. This document applies to grid-connected horizontal axis wind turbine generators in typhoon-prone areas.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 2900.53-2001 Electrical Engineering Terminology - Wind Turbine Generator Sets GB/T 4208 Degrees of protection provided by enclosures (IP code) GB/T 4797.5-2017 Classification of Environmental Conditions - Natural Environmental Conditions - Precipitation and Wind GB/T 18451.1-2022 Design Requirements for Wind Turbine Generator Sets GB/T 19072-2022 Wind Turbine Generator Tower GB/T 19292.1 Corrosion of metals and alloys - Atmospheric corrosivity - Part 1.Classification, determination and evaluation GB/T 25383 Wind turbine blades for wind power generation systems GB/T 25385 Operation and Maintenance Requirements for Wind Turbine Generator Sets GB/T 31517.1-2022 Design Requirements for Stationary Offshore Wind Turbine Generators GB/T 33629 Lightning Protection for Wind Power Generation Systems GB/T 33630-2017 Corrosion Protection Standard for Offshore Wind Turbine Generators GB/T 35792 Qualification Testing and Certification of Wind Turbine Generator Sets GB/T 36569 Technical requirements for foundations of wind turbine generators in offshore wind farms GB 50007 Code for Design of Building Foundations GB/T 50010 Code for Design of Concrete Structures GB 50057-2010 Code for Design of Lightning Protection of Buildings GB 50135-2019 Standard for Design of Tall Structures

3 Terms and Definitions

The terms and definitions defined in GB/T 2900.53-2001 and GB/T 18451.1-2022, as well as the following terms and definitions, apply to this document. 3.1 Typhoon tropical cyclones An atmospheric vortex that forms rapidly and moves forward over tropical or subtropical ocean surfaces. ...