GB/T 43904-2024Wind energy generation systems - Operation evaluation index system for wind turbines (English PDF)

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: Beijing Jianheng Certification Center Co:, Ltd:, China Agricultural Mechanization Research Institute Hohhot Branch Co:, Ltd: Co:, Ltd:, Goldwind Science & Technology Co:, Ltd:, Mingyang Smart Energy Group Co:, Ltd:, CRRC Zhuzhou Electric Locomotive Research Institute Co:, Ltd: Ministry of Energy, Windey Energy Technology Group Co:, Ltd:, Shanghai Electric Wind Power Group Co:, Ltd:, Harbin Electric Wind Energy Co:, Ltd:, Envision Energy Co:, Ltd:, CSSC Wind Power Co:, Ltd:, Dongfang Electric Wind Power Co:, Ltd:, China Huaneng Group Co:, Ltd:, CGN Wind Power Co:, Ltd: Company, China Electric Power Research Institute Co:, Ltd:, Shanghai Energy Technology Development Co:, Ltd:, China Three Gorges New Energy (Group) Co:, Ltd: China Huaneng Group Clean Energy Technology Research Institute Co:, Ltd:, Beijing Qianyuan Wind Power Technology Co:, Ltd:, State Power Investment Group Science and Technology Research Institute Co:, Ltd:, Sinovel Wind Power Technology (Group) Co:, Ltd:, Huadian Electric Power Research Institute Co:, Ltd:, Shangao New Energy Group Co:, Ltd:, China Resources New Energy Investment Co:, Ltd:, State Grid Hebei Electric Power Co:, Ltd:, Guohua (Qian'an) Wind Power Co:, Ltd:, CEC Wind Power Power Generation Co:, Ltd:, China National Nuclear Huineng (Inner Mongolia) Energy Co:, Ltd:, Guangdong Yudean Zhanjiang Wind Power Co:, Ltd:, Hebei Jiantou New Energy Power Co:, Ltd:, Beijing Jingneng New Energy Co:, Ltd:, State Grid Hebei Electric Power Co:, Ltd: Electric Power Research Institute, Beijing Nenggao Pukang Measurement and Control Technology Co:, Ltd:, Huaneng Yangjiang Wind Power Co:, Ltd: The main drafters of this document are: Yang Hongyuan, Li Peng, Ren Jun, Xie Shengqing, Wei Yufeng, Hu Kaikai, Du Guangping, Zhou Minqiang, Zhang Liming, Zeng Xingguo, Zhu Hongdong, Lei Chunyu, Li Yuan, Li Guoqing, Dong Li, Chen Chen, Lan Xiang, Wang Yun, Li Lisen, Zhuang Yan, Yan Shuai, Wu Yungaowa, Zhang Wenzhong, Liu Baosong, Liu Yunning, Xiao Wencheng, Shi Min, Lei Qilong, Zhang Huayao, Wei Xiaogang, He Kaihua, Liang Xiaoyan, Qin Xiaoliang, Zhang Dexin, Yan Peng, Liu Zhan, Wang Jianbin, Wan Yubin, Liu Dejun, Zhang Wei, Lou Feimin, Liu Hongchang, Shi Yufeng, Zhan Yangyan, Yan Xiao, Ma Jilong, Xiao Fuhua, Zhang Linwei, Su Baoding, Yang Zhiyi, Pang Yu: Wind power generation system Wind turbine operation Evaluation System

1 Scope

GB/T 43904-2024 sets the index system for evaluating how a wind turbine actually performs in operation. China has more installed wind capacity than any other country, much of it now out of warranty and changing hands, and the question a buyer, an insurer or an operator asks is not what the power curve said at handover but how the machine has behaved since: how much it generated against the wind that was available, how much of the time it was able to run, how often it failed and for how long, what it cost to keep running, and how it behaved at the grid connection. The standard sets the general principles and then the evaluation indicators and their calculation methods under five headings - power generation performance, availability, reliability, operation and maintenance economics, and grid connection characteristics - followed by the operational quality evaluation itself, with its data sources and principal indicators. It took effect on 1 November 2024.

This document specifies the evaluation indicators and calculation methods, as well as the operation quality evaluation contents of wind turbines: This document is applicable to the evaluation of the operating quality of grid-connected wind turbines:

2 Normative references

The contents of the following documents constitute the 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 2900:

53 Electrical terminology Wind turbine generator system GB/T 18451:

3 Terms and definitions

The terms and definitions defined in GB/T 2900:53 and the following apply to this document: 3:

1 Wind turbine failure A characteristic state in which a wind turbine is unable to perform its specified functions:

Note: This includes the situation where the same event that affects the normal operation of the wind turbine generator set is remotely reset three or more times in a row: Preventive maintenance and other planned activities The exceptions are situations where the required functions cannot be performed due to lack of external resources: 3:

2 Sub-health The wind turbine generator set has not reported any faults, but cannot operate normally as designed: 3:3 reliability The ability of a product to complete specified functions under specified conditions and within a specified time: 3:

4 Maintenance and repair Maintenance The combination of all technical and administrative activities performed to maintain, restore or improve the required technical condition and functionality of a product: