GB/T 18451.2: Evolution and historical versions
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| GB/T 18451.2-2021 | English | RFQ |
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Wind turbines - Power performance measurements of electricity producing
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GB/T 18451.2-2021
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Power performance measurements of electricity producing wind turbines
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GB/T 18451.2-2012
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Wind turbine power performance testing
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Basic data | Standard ID | GB/T 18451.2-2021 (GB/T18451.2-2021) | | Description (Translated English) | Wind turbines - Power performance measurements of electricity producing | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F11 | | Word Count Estimation | 206,239 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 18451.2-2012: Power performance measurements of electricity producing 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.
Power performance measurements of electricity producing wind turbines
ICS 27.180
F11
National Standards of People's Republic of China
Replacing GB/T 18451.2-2003
Wind turbine power performance testing
(IEC 61400-12-1.2005, Windturbines-Part 12-1. Powerperformance
measurementsofelectricityproducingwindturbines, IDT)
Issued on. 2012-05-11
2012-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
IEC Introduction Ⅳ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 symbols and units 3
Power characteristics of the test preparation 5 7
5.1 wind turbine and its electrical connections 7
5.2 test site 7
8 6 Test Equipment
6.1 Electric Power 8
6.2 Winds 9
Dir 6.3
6.4 air density 9
6.5 speed and pitch angle 10
6.6 Status blade 10
6.7 wind turbine control system 10
6.8 Data Acquisition System 10
7 measurement program 10
7.1 Overview 10
10 7.2 wind turbine operation
7.3 Data Collection 10
7.4 Data Filter 11
11 7.5 Data Correction
11 7.6 Database
12 8 Exporting Results
12 8.1 Data standardization
8.2 Measurement of the power curve is determined 12
8.3 annual energy production (AEP) 13
8.4 Power Factor 14
14 9 reporting format
Appendix A (normative) obstacle assessment test site 24
Appendix B (normative) Test site topography assessment 28
Annex C (normative) Calibration site 29
Annex D (normative) Measurement Uncertainty 31
Appendix E (normative) method to determine the range of the theoretical basis of measurement uncertainty of 33
Annex F (normative) wind cup anemometer calibration procedure 49
Installation Appendix G (normative) on wind tower equipment 55
Small wind turbine power performance testing Annex H (normative) 62
Annex I (normative) anemometer grade 64
Appendix J (informative) wind cup anemometer assessment 66
Annex K (informative) than 73 anemometer site
References 74
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 18451.2-2003 "wind turbine power performance test." And GB/T 18451.2-2003 phase
Technology than the main changes are as follows.
--- Modify the standard name "wind turbine power performance testing";
--- Small amount adjusted maximum measurement range of angles measuring sector;
--- Rewritten Appendix A ~ Appendix D, an increase of Appendix F ~ Appendix J;
--- Table 1 and Table 2 refined to Tables 1 to 4;
--- Added Figure 4, Figure 5.
This standard uses the translation method is equivalent to using IEC 61400-12-1.2005 "Wind turbines - Part 12. Wind turbine power
Rate characteristic test. "
Correspondence between the consistency of the standards of international documents and normative references of our standards are.
--- GB 1208-2006 current transformers (IEC 60044-1.2003, MOD)
For ease of use, this standard made the following editorial changes.
a) The "IEC 61400 this part" to this standard;
b) to retain the IEC 61400-12-1.2005 introduction, while increasing the preface of this standard.
c) Remove the IEC 61400-12-1.2005 in informative overview of elements (including the cover, Contents and Introduction);
d) In the scope of "1" and the other in its standard line edit. This standard applies to all types and capacity of wind power grid
Generating units.
e) The IEC 60044-1.1996 "Instrument transformers - Part 1. current transformers," including amendments 1 (2000), amendments 2
(2002), with the current IEC 60044-1.2003 Alternative;
f) The IEC 60688.1992 "AC electrical quantities converted to analog or digital electrical measuring transducers", including amendments 1
(1997), amendments 2 (2001), with the current IEC 60688.2002 Alternative;
g) The IEC 61400-2.1996 "Wind turbines - Part 2. Design requirements for small wind turbines", with the current
IEC 61400-2.2006 Alternative;
h) The reference standard IEC 60186 electromagnetic voltage transformer with current IEC 60044-2.2003 instead.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee on mechanical wind (SAC/TC50) centralized.
This standard was drafted. China Electric Power Research Institute, Chinese Academy of Agricultural Mechanization Sciences Branch of Hohhot and the like.
The main drafters of this standard. Qin Shiyao, Wang Jianping, Li Qing, Chen Mo son, Zhang Shihui, Yang Xue, Ma Xiaojing, Fu Deyi, Jiao Bo.
IEC Introduction
IEC 61400-12-1 purpose is to provide a unified approach to ensure consistent wind turbine power performance testing and analysis
, Accuracy and repeatability. This standard applies to.
Wind turbine manufacturers, and strive to make products to meet well-defined power performance requirements and/or a possible declaration system;
WTG buyers can clear power performance requirements;
Wind turbine operator can confirm technical characteristics of new power or repaired units to satisfy stated or required
condition;
Wind turbine planners and regulators, it is possible to accurately and fairly evaluate the characteristics of wind power turbines, so that new or changed after
Device complies with its specifications or licensing guidelines.
This standard provides guidance on measurement, analysis and report writing wind turbine power performance testing. It will engage in wind-power generator
Turbine manufacturing, installation, planning, operation and management of institutions to benefit. The standard recommended test and analysis techniques applicable to these parties, to ensure
The accuracy of wind turbine syndrome development and operation of consistency and technical exchanges. Hope that the standard given to measure and report writing process
Order to get accurate results can be repeated by others. Meanwhile, the standard user should recognize that significant changes caused by wind shear and turbulence as well as the number of
According to the selection criteria differences arising. Power performance testing before signing the contract, the standard user should consider these differences and with the purpose of the test phase
Off the impact of data selection criteria.
One of the key factors in the power characteristics of the test is to measure wind speed. This standard specifies the use of wind cup anemometer to measure wind speed, wind cup anemometer
Count robust, it has long been considered suitable for power performance testing. Even with appropriate wind tunnel verification procedures, and the wind vector
(Including magnitude and direction) fluctuations in the relevant field flow conditions, will lead to different instruments potentially different effects.
Appendices I and J are given methods and steps anemometer classification. However, the test results may still be affected by the anemometer chosen, the
In order to measure the wind speed anemometer should pay particular attention to the choice.
Wind turbine power performance testing
1 Scope
This standard specifies the test single wind turbines power characteristics of the method. In addition, the standard describes the grid and the battery group phase
Even small wind turbines (IEC 61400-2 defined wind turbine) power characteristics test methods. Test method can be used
To evaluate the performance of a particular wind turbine specific geographic location. Similarly, the method may be used for different types or different set of wind
Power generators groups generally.
This standard applies to all types and capacity of the grid wind turbine.
Wind turbine power performance is determined by measuring the power curve and the annual energy production (AEP). Measuring the power curve by a certain period of time
Synchronous acquisition of wind speed and wind turbine output power decided that the time period should be long enough so that in a certain range of wind speeds and atmospheric conditions
Under changed circumstances, it is possible to establish a database of statistical significance. AEP is using the measured power curve and the reference frequency distribution of wind speed computing
Derived, and assuming the availability of the wind turbine is 100%.
Measurement This standard specifies the requirements for measuring the power curve and the annual generating capacity of sources of uncertainty and their synthetic impact assessments.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
IEC 60044-1.2003 Instrument transformers - Part 1. Current transformers (Instrumenttransformers-Part 1.
Currenttransformers)
IEC 60688.2002 AC electrical quantities converted to analog or digital electrical measurement sensor (Electricalmeasuring
transducersforconvertinga.c.electricalquantitiestoanalogueordigitalsignals)
IEC 61400-2.2006 Wind turbines - Part 2. Design requirements for small wind turbines (Windturbine-Part
2. Designrequirementsofsmalwindturbines)
ISO 2533. 1975 standard atmosphere (Standardatmosphere)
ISO Guide to the Expression of Uncertainty in Measurement, 1995, ISBN92-67-10188-9 (Guidetotheexpressionofuncertaintyin
measurement)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Accuracy accuracy
Measured (object) is measured by the closeness of the value of the true value.
3.2
Annual generation capacity annualenergyproduction, AEP
Using the measured power curve and different hub height wind speed frequency distribution estimated from a wind turbine production within a year
All electricity. All calculations assume 100 percent availability.
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