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GB/T 32077-2025: Wind energy generation systems - Pitch system of wind turbines
Status: Valid GB/T 32077: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32077-2025 | English | 619 |
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Wind energy generation systems - Pitch system of wind turbines
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GB/T 32077-2025
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| GB/T 32077-2015 | English | 569 |
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Wind turbine generator system -- Pitch system
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GB/T 32077-2015
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PDF similar to GB/T 32077-2025
Basic data | Standard ID | GB/T 32077-2025 (GB/T32077-2025) | | Description (Translated English) | Wind energy generation systems - Pitch system of wind turbines | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F11 | | Classification of International Standard | 27.180 | | Word Count Estimation | 30,389 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-11-01 | | Older Standard (superseded by this standard) | GB/T 32077-2015 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 32077-2025: Wind energy generation systems - Pitch system of wind turbines---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 Standard of the People's Republic of China
Replace GB/T 32077-2015
Wind power generation system Wind turbine variable pitch system
Released on 2025-04-25
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 2
4 Working conditions 4
4.1 General working conditions 4
4.2 Special conditions 4
4.3 Other conditions 4
5 Technical requirements 5
5.1 General requirements 5
5.2 Functional Requirements 6
5.3 Performance requirements 8
5.4 Requirements for main components 10
6 Test methods 12
6.1 Test conditions 12
6.2 Functional test 13
6.3 Performance test 16
6.4 Main component test 20
7 Inspection Rules 21
7.1 Types of product inspection 21
7.2 Type inspection 21
7.3 Factory Inspection 22
8 Deliverables Requirements22
8.1 Marking, labelling and instructions for use 22
8.2 Packaging, transportation and storage 23
9 Installation and Maintenance 23
9.1 Installation 23
9.2 Maintenance 23
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.
This document replaces GB/T 32077-2015 "Wind turbine pitch control system".
In addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) Deleted "three-blade wind wheel" from the scope (see Chapter 1 of the.2015 edition);
b) Added the terms "multi-drive pitch system", "safety position" and "pitch system following error" (see Chapter 3);
c) The terms "pitch angle operating range", "independent pitch control", "unified pitch control", "normal feathering" and "emergency feathering" have been deleted.
“Hydraulic rotary joint”, “Conductive slip ring”, “Redundancy technology” (see Chapter 3 of the.2015 edition);
d) The general working conditions have been changed (see Chapter 4, Chapter 4 of the.2015 edition);
e) Added the requirements for "speed capability", "acceleration capability" and "braking capability" (see 5.1.1);
f) Added "backup power self-check function" (see 5.2.4);
g) Added "grid fault ride-through function" (see 5.2.5);
h) Added "monitoring and maintenance functions" (see 5.2.6);
i) Added "Stop function" (see 5.2.7);
j) Added "power-on safety function" (see 5.2.8);
k) The noise standard of hydraulic system has been changed (see 5.3.3.6, 5.4.3.6 of the.2015 edition);
l) The cleanliness level of hydraulic oil has been changed (see 5.3.3.7, 4.1.3 of the.2015 edition);
m) Added "Lightning protection requirements" (see 5.3.5);
n) Changed the requirements for "backup power source" (see 5.4.1, 5.7 of the.2015 edition);
o) Deleted the requirements of “battery voltage is too low” and “battery temperature is too low” (6.2.3.8 and 6.2.3.9 of the.2015 edition);
p) Added “reserve power source self-check test” (see 6.2.4);
q) Added “grid fault ride-through test” (see 6.2.5);
r) Added "Stop function test" (see 6.2.7);
s) Added "power-on safety function test" (see 6.2.8);
t) Added "step response test", "pitch system positioning error test", "pitch system following error test", "speed capability test"
Test”, “acceleration capability test”, “brake performance test” (see 6.3);
u) The contents of the electromagnetic compatibility test have been changed (see 6.3.1, 6.3.6 of the.2015 edition);
v) Changed the schematic diagram of the electric variable pitch loading test platform and the schematic diagram of the hydraulic variable pitch loading test platform (see 6.3.3.3,.2015
6.3.4.3 of the.2015 edition);
w) Added "main component test" (see 6.4);
x) The inspection items have been changed (see Table 6, Table 6 of the.2015 edition);
y) Added “Installation and Maintenance” (see Chapter 9).
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. Shanghai Electric Wind Power Group Co., Ltd., Goldwind Science & Technology Co., Ltd., Jiangsu Coastal Renewable Energy
Technology Innovation Center, Yunda Energy Technology Group Co., Ltd., Mingyang Smart Energy Group Co., Ltd., CRRC Zhuzhou Electric Locomotive Research
Co., Ltd. Wind Power Division, CRRC Shandong Wind Power Co., Ltd., CSSC Offshore Wind Power Co., Ltd., Hunan Xinglan Wind Power Co., Ltd., Ess
Beijing Beifeng Wind Power Technology (Qingdao) Co., Ltd., Qingdao Pangu Intelligent Manufacturing Co., Ltd., Sinovel Wind Power Technology (Group) Co., Ltd., China
China Three Gorges Corporation, Shanghai Electric Power Industry Co., Ltd., Three Gorges New Energy Offshore Wind Power Operation and Maintenance Jiangsu Co., Ltd., Yancheng Quality
Quality Technical Supervision Comprehensive Inspection and Testing Center, Beijing Jianheng Certification Center Co., Ltd., China Quality Certification Center Co., Ltd., Sungrow Power Supply Co., Ltd.
Co., Ltd., Shanghai Electric Group Power Transmission and Distribution Equipment Co., Ltd., Shanghai Electric Power Electronics Co., Ltd., Guoneng Xinkong Interconnection Technology (Hebei
Beijing) Co., Ltd., Tianjin Ruiyuan Electric Co., Ltd.
The main drafters of this document are. Xu Yiqing, Xun Zhengxuan, Zheng Jirong, Liu Weiguo, Jia Huiwen, Zhan Shaohui, Chen Sifan, Wang Lijuan, Yu Yong, Wang Wei,
Yang Wei, Huang Zheng, Wang Dawei, Han Kun, Chu Zhongxiang, Xu Kai, Feng Nan, Zhang Zhiwei, Wang Hui, Sun Tongjin, Sun Guang, Zhou Xinliang, Yuan Ying, Cao Wenbin,
Chen Guodong, Zhao Jinliang, Yu Kang, and Wang Shuai.
The previous versions of this document and the documents it replaces are as follows.
---First published in.2015 as GB/T 32077-2015;
---This is the first revision.
Wind power generation system Wind turbine variable pitch system
1 Scope
This document specifies the working conditions, technical requirements, test conditions and performance of the variable pitch system of a grid-connected wind turbine generator set (hereinafter referred to as the variable pitch system).
Methods, inspection rules, deliverable requirements, and installation and maintenance.
This document is applicable to the variable pitch system of grid-connected horizontal axis wind turbines. The variable pitch drive mode is hydraulic drive or electric drive.
drive.
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 191 Pictorial markings for packaging, storage and transportation
GB/T 1029 Test methods for three-phase synchronous motors
GB/T 1032 Test methods for three-phase asynchronous motors
GB/T 1311 DC motor test methods
GB/T 2422 Environmental testing - Guidelines for the preparation of test methods - Terms and definitions
GB/T 2423.1-2008 Environmental testing for electric and electronic products Part 2.Test methods Test A. Low temperature
GB/T 2423.2-2008 Environmental testing for electric and electronic products Part 2.Test methods Test B. High temperature
GB/T 2423.3-2016 Environmental testing Part 2.Test method Test Cab. Steady state damp heat test
GB/T 2423.4-2008 Environmental testing for electric and electronic products Part 2.Test methods Test Db. Cyclic damp heat (12h
12h cycle)
GB/T 2900.1 Basic terms of electrical engineering
GB/T 2900.53 Electrical terminology Wind turbine generator system
GB/T 3222.2 Acoustic environmental noise description, measurement and evaluation Part 2.Determination of sound pressure level
GB/T 3480 (all parts) Calculation of load capacity of spur and helical gears
GB/T 3482-2008 Lightning test methods for electronic equipment
GB/T 3766 General rules and safety requirements for hydraulic transmission systems and their components
GB/T 4208 Enclosure protection grade (IP code)
GB/T 4365 Electrical terminology - Electromagnetic compatibility
GB/T 5226.1 Electrical safety of machinery Electrical equipment of machinery Part 1.General technical requirements
GB/T 6388 Shipping and receiving marks for transport packaging
GB/T 7251.1-2023 Low-voltage switchgear and controlgear Part 1.General
GB/T 7935 General technical requirements for hydraulic components
GB/T 9969 General principles for instructions for use of industrial products
GB/T 11287-2000 Electrical relays Part 21.Vibration, shock, impact and earthquake of measuring relays and protective devices
Test Part 1.Vibration Test (Sine)
GB/T 12113 Measurement methods for contact current and protective conductor current
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