GB/T 18451.1-2022Wind energy generation systems—Design requirements (English PDF)

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard uses translation method to identically adopt IEC 61400-1.2005

"Wind turbines - Part 1.Design requirements".

This Standard replaces GB 18451.1-2001 "Wind turbine generator systems -

Safety requirements". Compared with GB 18451.1-2001, the main technical

changes in this Standard are as follows.

- changed the standard's name to "Wind turbine generator systems - Design

requirements";

- adjusted the classification method of wind turbines; now only reference

wind speed and turbulence intensity are involved;

- expanded the turbulence model and included the limit turbulence model;

- adjusted and simplified the gust model;

- reorganized and revised the design load cases;

- emphasized the split turbulence simulation in the load calculation, and

specified the extrapolation method of the limit load;

- adjusted and simplified the partial safety factor of the load;

- corrected the partial safety factor of the material; made the detailed

description according to the material model and component class;

- according to the functional characteristics, revised and clarified the

requirements of the control and protection system;

- added detailed evaluation requirements for structure and electrical

compatibility.

The Chinese documents which have consistency with the international

normative references in this Standard are as follows.

- GB/T 4797.1-2005, Environmental conditions appearing in nature of electric

and electronic products - Temperature and humidity (IEC 60721-2-1.2002,

MOD);

- GB/T 6391-2003, Rolling bearings - Dynamic load rating and rating life (ISO

281.1990, IDT); the current edition GB/T 6391-2010 has replaced GB/T

6391-2003;

- GB 5226.1- 2002, Safety of machinery - Electrical equipment of machines

- Part 1.General requirements (IEC 60204-1.1997, IDT); the current

edition GB 5226.1-2008 " Electrical safety of machinery - Electrical

equipment of machines - Part 1.General requirement" has replaced GB

5226.1-2002;

- GB16895 (all parts), Low-voltage electrical installations [IEC 60364 (all

parts)];

- GB/Z 25427-2010, Wind turbine generator systems - Lightning protection

(IEC 61400-24.2002, MOD).

For easy use, this Standard made the following editorial modifications.

a) changed "IEC 61400-1.2005" to this Standard;

b) deleted the informative summary elements (including cover, table of

contents and foreword) in IEC 61400-1.2005;

c) kept the introduction of IEC 61400-1.2005 and added the "foreword" of

this Standard;

d) use the current IEC 60721-2-1.2002 "Classification of environmental

conditions - Part 2-1.Environmental conditions appearing in nature -

Temperature and humidity" to replace IEC 60721-2-1.1982;

e) use the current ISO 4354.2009 "Wind actions on structures" to replace

ISO 4354.1997;

f) use the current ISO 9001.2008 "Quality management systems -

Requirements" to replace ISO 9001.2000.

This Standard was proposed by China Machinery Industry Federation.

This Standard shall be under the jurisdiction of National Technical Committee

on Wind Machinery of Standardization Administration of China (SAC/TC 50).

Main drafting organizations of this Standard. Beijing Jianheng Certification

Center, Shenhua Guohua Energy Investment Co., Ltd., Hohhot Branch of

Chinese Academy of Agricultural Mechanization Sciences, Shanghai Electric

Wind Power Equipment Co., Ltd., North China Electric Power University,

Xinjiang Goldwind Technology Co., Ltd., Zhejiang Yunda Wind Power Co., Ltd.

Main drafters of this Standard. Gao Hui, Wang Jianping, Qin Haiyan, Zhang Yu,

Chen Leijie, Xu Yiqing, Deng Ying, Wang Xiangming, Tian Ye, Zhuang Yuexing,

Ye Hangye, Wang Wei, Li Zao, Yang Hongyuan.

Wind turbine generator systems - Design

requirements

1 Scope

This Standard specifies essential design requirements to ensure the

engineering integrity of wind turbines. Its purpose is to provide an appropriate

level of protection against damage from all hazards during the planned lifetime.

This Standard is concerned with all subsystems of wind turbines such as control

and protection mechanisms, internal electrical systems, mechanical systems

and support structures.

This Standard applies to wind turbines of all sizes. For small wind turbines IEC

61400-2 may be applied.

This Standard should be used together with the appropriate IEC and ISO

standards mentioned in Clause 2.

2 Normative references

The following referenced documents are indispensable for the application of

this document. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any

amendments) applies.

GB/T 4662-2003, Rolling bearings - Static load ratings (ISO 76.1987)

GB 5226.3-2005, Safety of machinery - Electrical equipment of machines -

Part 11.Requirements for HV equipment for voltages above 1000V a.c. or

1500V d.c. and not exceeding 36kV (IEC 60204-11.2000)

GB 16895.3-2004, Electrical installations of buildings - Part 5-54.Selection

and erection of electrical equipment - Earthing arrangements, protective

conductors and protective bonding conductors (IEC 60364-5-54.2002)

GB/T 17799.1-1999, Electromagnetic compatibility - Generic standards -

Immunity for residential, commercial and light-industrial environments (IEC

61000-6-1.1997)

GB 17799.2-2003, Electromagnetic compatibility - Generic standards -

Immunity for industrial environments (IEC 61000-6-2.1999)

GB 17799.4-2001, Electromagnetic compatibility - Generic standards -

Emission standard for industrial environments (IEC 61000-6-4.1997)

GB/T 19001-2008, Quality management systems - Requirements [including

MODIFICATION 1] (ISO 9001.2008)

GB/T 19271.1-2003, Protection against lightning electromagnetic impulse -

Part 1.General principles (IEC 61312-1.1995)

GB/T 20320-2006, The WTG power quality measurement and assessment

methods (IEC 61400-21.2001)

IEC 60204-1.1997, Safety of machinery – Electrical equipment of machines

– Part 1.General requirements

IEC 60364 (all parts), Electrical installations of buildings

IEC 60721-2-1.2002, Classification of environmental conditions - Part 2.

Environmental conditions appearing in nature. Temperature and humidity

IEC 61024-1.1990, Protection of structures against lightning - Part 1.General

principles

IEC 61400-24.2002, Wind turbine generator systems - Part 24.Lightning

protection

ISO 281.1990, Rolling bearings - Dynamic load ratings and rating life

ISO 2394.1998, General principles on reliability for structures

ISO 2533.1975, Standard Atmosphere

ISO 4354.2009, Wind actions on structures

ISO6336 (all parts), Calculation of load capacity of spur and helical gears

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.