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GB/T 44681-2024: Wind energy generation systems - Technical specifications for post-evaluation and retrofitting of wind farms
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Wind energy generation systems - Technical specifications for post-evaluation and retrofitting of wind farms
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GB/T 44681-2024
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Basic data | Standard ID | GB/T 44681-2024 (GB/T44681-2024) | | Description (Translated English) | Wind energy generation systems - Technical specifications for post-evaluation and retrofitting of wind farms | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F11 | | Classification of International Standard | 27.180 | | Word Count Estimation | 38,395 | | Date of Issue | 2024-09-29 | | Date of Implementation | 2025-04-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44681-2024: Wind energy generation systems - Technical specifications for post-evaluation and retrofitting of wind farms
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ICS 27.180
CCSF11
National Standard of the People's Republic of China
Wind power generation system wind farm post evaluation and
Renovation Technical Specifications
Released on 2024-09-29
2025-04-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 3
5 Evaluation Requirements 3
5.1 General 3
5.2 Data Integrity 4
5.3 Data Normalization 4
5.4 Data Classification 6
6 Post-design evaluation of wind farms 6
6.1 General 6
6.2 Representativeness of wind towers 6
6.3 Unit selection and configuration 6
6.4 Terrain 6
6.5 Wind Resources 6
6.6 Power Generation Deviation 7
6.7 Economical 8
7 Post-operation evaluation of wind farms 8
7.1 General 8
7.2 Power Generation Performance 9
7.3 Availability 10
7.4 Reliability 10
7.5 Security 11
7.6 Grid-connected operation 12
7.7 Economic efficiency 13
8 Wind farm transformation technology 15
8.1 General 15
8.2 Optimization Class 15
8.3 Components installation and replacement 17
8.4 Whole machine replacement 18
8.5 Other categories18
9 Wind farm transformation evaluation 18
9.1 Overview 18
9.2 Transformation Effect 19
9.3 Security 21
9.4 Economic efficiency 22
10 Reporting requirements23
Appendix A (Informative) Data Collection Checklist 24
Appendix B (Normative) Wind speed normalization 26
Appendix C (Informative) Empirical method for solving cabin transfer function 28
Appendix D (Informative) Unit power generation performance related parameters and typical abnormal state evaluation 29
Reference 31
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 of the contents of this document may involve patents. The issuing organization of this document does not assume the 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 for Standardization of Wind Power Generation (SAC/TC50).
This document was drafted by. Zhejiang Goldwind Technology Co., Ltd., Beijing Jianheng Certification Center Co., Ltd., China Energy Engineering Group Guangdong Province
Electric Power Design and Research Institute Co., Ltd., CRRC Zhuzhou Electric Locomotive Research Institute Co., Ltd. Wind Power Division, Harbin Electric Wind Energy Co., Ltd., Siemens
Gamesa Renewable Energy Technology (China) Co., Ltd., Guoneng Star Technology Co., Ltd., Guodian United Power Technology Co., Ltd., Shanghai Energy
Source Technology Development Co., Ltd., Jiangsu Goldwind Technology Co., Ltd., China Huaneng Group Clean Energy Technology Research Institute Co., Ltd., Beijing Goldwind
Huineng Technology Co., Ltd., CSSC Offshore Wind Power Co., Ltd., Zhongke Yuneng Technology Development Co., Ltd., Goldwind Science & Technology Co., Ltd., Mingyang
Smarter Energy Group Co., Ltd., Yunda Energy Technology Group Co., Ltd., PowerChina Fujian Electric Power Survey and Design Institute Co., Ltd.
China Electric Power Research Institute Co., Ltd., China Three Gorges Corporation, China Quality Certification Center, Longyuan (Beijing) New Energy
Engineering Technology Co., Ltd., Vestas Wind Technology (China) Co., Ltd., Shanghai Electric Wind Power Group Co., Ltd., Beijing Goldwind
Chuang Wind Power Equipment Co., Ltd., CGN Wind Power Co., Ltd., Beijing Qianyuan Wind Power Technology Co., Ltd., CRRC Shandong Wind Power Co., Ltd., Envision
Energy Co., Ltd., Dongfang Electric New Energy Technology (Chengdu) Co., Ltd., Guangdong Wind Power Generation Co., Ltd., Shandong Electric Power Engineering Consulting Institute
Co., Ltd., Runyang Energy Technology Co., Ltd., Yangjiang Offshore Wind Power Laboratory, and Nanjing Avis Transmission Technology Co., Ltd.
The main drafters of this document are. Ma Lijuan, Wang Dandan, Fan Yongchun, Hu Kaikai, Xu Ke, Zhang Qingyun, Song Yijia, Wang Yuting, Yin Pengjuan, Deng Yi,
Ao Juan, Li Yuan, Zhao Xinlong, Lei Chunyu, Zhang Shuli, Chen Yazhi, Shi Yufeng, Wang Xin, Tan Renshen, Huang Wenyi, Fu Deyi, Li Xiulin, Cui Chunxia,
Ma Li, Yan Dongmiao, Ren Huaihui, Qu Shougang, Zou Hao, Xie Shengqing, Yuan Ye, Ma Chi, Tang Peng, Liu Jian, Guo Yanli, Zeng Xingguo, Li Yue, Yang Wei, Zhang Xing,
An Huicheng, Zhang Yuxia, Zhong Yi, Li Lin, Liu Hao, Yao Jiagui, Wu Yafei, Wang Gongxi, Wu Jinjin, Yang Xi, Liu Donghai, Wang Xufeng, Shao Jianchun,
Zhu Ronghua and Wu Weiqiang.
Introduction
This document is intended for use by utilities, creditors, operators, turbine manufacturers, consultancies, regulators,
Establish a common basis for wind farm post-evaluation and renovation when institutions, insurance companies and other relevant parties communicate
Provide guidance.
Post-evaluation of operating wind farms and targeted technical transformation based on post-evaluation indicators are issues that need to be addressed and standardized in the current industry.
Difficulty. The two links of wind farm post-evaluation and transformation complement each other at the technical level. Among them, post-design evaluation focuses more on the early stage.
The deviation assessment between design and actual operation mainly focuses on micro-site selection, power generation, economy and other dimensions; the post-operation evaluation focuses more on power generation performance.
energy, availability, reliability, safety, grid-connected operation, and economy. After the evaluation, the wind farm will be evaluated based on the actual feasible conditions.
From small to large renovation plans, when the renovation is officially implemented, it is still necessary to evaluate the safety of the entire plan and finally evaluate the effectiveness of the plan.
Practical experience shows that the more comprehensive the evaluation dimensions, the clearer the overall operation of the wind farm will be, and the more conducive it will be to the transformation plan.
selection and implementation.
The requirements of a certain clause in the change document will not affect the entire wind farm post-evaluation and transformation implementation process. This document is mainly for onshore wind
For offshore wind farms, the post-evaluation and transformation technical requirements for offshore wind farms are not fully given, and the offshore wind farms of the same category shall be implemented by reference.
Wind power generation system wind farm post evaluation and
Renovation Technical Specifications
1 Scope
This document specifies the relevant technical contents of post-evaluation and transformation of wind farms (hereinafter referred to as "wind farms"), including the
Assessment requirements, post-design evaluation of wind farms, post-operation evaluation of wind farms, and wind farm transformation technologies that can optimize power generation and improve reliability
Technical requirements and evaluation.
This document applies to post-evaluation of onshore wind farms that have been put into operation and have generated operating data, as well as technologies for optimizing power generation and improving reliability.
Transformation design evaluation shall be implemented as a reference for offshore wind farms.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 5226.1 Electrical safety of machinery Electrical equipment of machinery Part 1.General technical requirements
GB/T 15969.1 Programmable controllers Part 1.General information
GB/T 15969.2 Programmable controllers Part 2.Equipment requirements and tests
GB/T 18451.1 Design requirements for wind turbines
GB/T 18451.2-2021 Wind turbine power characteristics test
GB/T 19963.1 Technical regulations for connecting wind farms to power systems Part 1.Onshore wind power
GB/T 33225 Power characteristics test of wind turbine generator system based on nacelle anemometer method
GB/T 37523-2019 Technical specification for review, interpolation and correction of meteorological observation data for wind farms
DL/T 1870 Technical Specification for Power System Network Source Coordination
NB/T 10103-2018 Technical specification for micro-site selection of wind farm projects
NB/T 10205 Technical regulations for wind power forecasting
NB/T 10590 Technical specification for lightning protection of wind farm collector lines in areas prone to lightning
NB/T 10909 Wind energy resource analysis and power generation calculation method in micro-site selection
NB/T 31046 Wind power prediction system functional specification
NB/T 31078 Wind farm grid-connected performance evaluation method
NB/T 31085 Specification for economic evaluation of wind farm projects
3 Terms and definitions
The following terms and definitions apply to this document.
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