GB/T 33225-2016 English PDF

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GB/T 33225-2016: Electricity producing wind turbines -- Power performance measurements based on nacelle anemometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 33225-2016	1714	Add to Cart	5 days	Electricity producing wind turbines -- Power performance measurements based on nacelle anemometry	Valid

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Basic data

Standard ID: GB/T 33225-2016 (GB/T33225-2016)
Description (Translated English): Electricity producing wind turbines -- Power performance measurements based on nacelle anemometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: F11
Classification of International Standard: 27.180
Word Count Estimation: 86,839
Date of Issue: 2016-12-13
Date of Implementation: 2017-07-01
Regulation (derived from): National Standard Notice No.165 of 2016
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 33225-2016: Electricity producing wind turbines -- Power performance measurements based on nacelle anemometry

---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.
Electricity producing wind turbines - Power performance measurements based on nacelle anemometry ICS 27.180 F11 National Standards of People's Republic of China The wind turbine is based on the cabin wind speedometer method Power characteristics test (IEC 61400-12-2..2013, Windturbines-Part 12-2. Powerperformanceof electricity-producingwindturbinesbasedonnaceleanemometry, IDT) 2016-12-13 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface III Introduction IV 1 Scope 1 2 normative reference document 1 3 Terms and definitions 2 4 symbols and units 5 5 Overview of test methods 8 6 Prerequisites for power characteristics testing 10 6.1 Overview 10 6.2 Wind turbine 10 6.3 Test site 10 6.4 Cabin wind speed transfer function 6.5 Test Plan 13 Test equipment 7.1 Electric power 13 7.2 wind speed 14 7.3 Wind direction 14 7.4 Air density 15 7.5 wheel speed 15 7.6 pitch angle 15 7.7 Wind turbine status 15 7.8 Data Collector 16 8 measuring program 16 8.1 Overview 16 8.2 Wind turbine operation 16 8.3 Data System Synchronization 16 8.4 Data collection 17 8.5 Data Quality Verification 17 8.6 Data Removal 18 8.7 Data revision 18 8.8 Database 18 9 Export results 19 9.1 Data standardization 19 Determine the measurement of the power curve 9.3 years power generation 20 9.4 Power factor 21 9.5 Uncertainty analysis 21 10 Report Format 21 Appendix A (informative) Cabin equipment installation 28 Appendix B (Normative Appendix) Measurement Sector Program 30 Appendix C (normative appendix) Cabin wind speed transfer function validity procedure Appendix D (Normative Appendix) Cabin wind speed transfer function test procedure Appendix E (Normative Appendix) Measurement Uncertainty Assessment 43 Appendix F (normative appendix) The theoretical basis for determining the uncertainty of measurement in the interval method Appendix G (normative) Cabin wind speed transfer function/Cabin power curve Uncertainty assessment and calculation 53 Appendix H (normative appendix) Allowable wind gauge type 63 Appendix I (informative) Results and Uncertainty Considerations 65 Appendix J (informative) Examples of calculation of uncertainty of the wind speed transfer function/nacelle power curve for a number of wind turbine units 69 Appendix K (informative) Organization of testing, safety and communication 77 Appendix L (informative) Flow chart of cabin power curve and nacelle wind speed transfer function

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the translation method equivalent to IEC 61400-12-2..2013 "Wind turbine generation Part 12-2. Based on the cabin anemometer Law of wind turbine power characteristics of the test. " And the normative reference in this standard international documents are consistent with the relationship between China's documents are as follows. --- GB/T 13850-1998 AC power conversion to analog or digital signal of the electrical measurement transmitter (idtIEC /T R60688. 1992) --- GB 20840.2-2014 Transformers - Part 2. Supplementary technical requirements for current transformers (IEC 61869-2..2012, MOD) - GB 20840.3-2013 Transformers - Part 3. Supplementary technical requirements for electromagnetic voltage transformers (IEC 61869-3. 2011, MOD) GB/T 27025-2008 General requirements for testing and calibration laboratory capabilities (ISO /IEC 17025..2005, IDT) JJF1059.1-2012 Measurement Uncertainty Assessment and Representation [ISO /IEC Guide98-3..2008 (GUM..1995), MOD] This standard is proposed by the China Machinery Industry Federation. This standard is under the jurisdiction of the National Wind Machinery Standardization Technical Committee (SAC/TC50). The drafting unit of this standard. China Electric Power Research Institute, Dongfang Electric Wind Power Co., Ltd., Zhejiang Yunda Wind Power Co., Ltd. The main drafters of this standard. Qin Shiyao, Wang Ruiming, Wang Bing, Xue Yang, Ma Xiaochen, Song Juzhong, Zheng Da Zhou, Zhou Minqiang, Zhu Changjiang, Bianwei.

Introduction

This standard is intended to provide a unified method of testing, analyzing and reporting the power characteristics of a single wind turbine using a nacelle anemometer. The standard applies only to large enough horizontal wind turbine units, and its cabin anemometer for the wind turbine through the wind turbine and around the cabin Of the air flow does not have a significant impact, and thus does not affect the wind turbine power characteristics. The purpose of this standard is in IEC 61400-12-1..2005 The proposed method is not feasible when using the method proposed by this standard. Thus ensuring that the current test technology level and test equipment under the test Consistency, accuracy and repeatability of the results. The procedures specified in this standard describe how the use of cabin anemometers by measuring the power curve and estimating the annual power generation to characterize wind turbines Group of power characteristics. In this procedure, the anemometer is mounted on or near the nacelle of the wind turbine to be measured, and the anemometer is measured at this position Of the wind speed by the wind wheel seriously affected, the procedures include the identification and application of appropriate amendments to solve this problem. However, it is needed It is noted that this correction increases the uncertainty compared to the tests performed in accordance with IEC 61400-12-1..2005. This procedure is also mentioned A method for determining the measurement uncertainty, including the assessment of the uncertainty source, the uncertainty of the synthesis uncertainty in the power and annual power generation reports And the evaluation of errors due to changes in wind shear and turbulence intensity and selection of data removal conditions. The key factor in the power characteristic test is the measurement of wind speed. Even if the anemometer is calibrated in a high quality wind tunnel, the actual test site In the wind vector size and direction of the impact of fluctuations, different anemometers may still show different characteristics. In addition, near wind turbine The airflow conditions at the cabin are complex and varied, and the selection and installation of the anemometer require special consideration, which is also described in the standard. This standard will benefit both parties involved in the manufacture, installation, planning, licensing, operation, use and supervision of wind turbines. If appropriate, The standard recommended accurate test and analysis techniques can be applied by all parties to ensure that wind turbine development and operation technology is consistent and accurate Sexual and sustainable development. The measurement and report writing procedures given in accordance with this standard are accurate and reproducible to others. The wind turbine is based on the cabin wind speedometer method Power characteristics test

1 Scope

This standard specifies a single horizontal axis wind turbine power characteristics of the verification method, not including IEC 61400-2 involved in small wind Generator set. This standard is used if the specific operating conditions or contractual provisions do not meet the requirements of GB/T 18451.2-2012. This standard Can be used to evaluate the performance of a particular wind turbine for a particular geographic location. Likewise, this standard can be used for different types or different Set the wind turbine for routine comparison. The power curve and the estimated annual power generation based on the cabin wind speedometer method are affected by the wind turbine of the wind turbine (ie, Large or reduced case). The cabin wind speed should be corrected according to the airflow distortion effect. This standard specifies the procedure for determining this correction method. sequence. In GB/T 18451.2-2012, the anemometer is installed in the measured wind turbine from the wind to 2 times to 4 times the wind turbine diameter measured On the wind tower. This position ensures that the measured wind turbine wind turbine has the least impact on the direct measurement of the "free flow" wind speed. In this standard In the case, the anemometer is installed at or near the top of the measured wind turbine, where the measured wind speed is affected by the wind turbine and the wind turbine The serious impact of the cabin, the procedures include the impact of the relevant amendments to the determination and application. However, it should be noted that with GB/T 18451.2-2012 Strict test requirements compared to this amendment certainly increased the uncertainty. This standard specifies how the power characteristics of wind turbines can be characterized according to the test power curve and the estimated annual power generation. Test the power curve The wind speed and output power of the nacelle measured simultaneously by a period, this test cycle is long enough to build enough data sets Reflect the changes in the wind and the atmosphere. In order to accurately measure the power curve, the cabin wind speed transfer function should be used to convert the engine room wind speed to free flow Wind speed, thus estimating the free flow wind speed. This standard specifies the test and verification methods for transfer functions. The annual power generation is measured by the test power curve and The relevant wind speed distribution is obtained assuming an availability of 100%. The program also provides guidelines for measuring uncertainty, including sources of uncertainty Evaluation, power curve and annual generation of synthetic uncertainty of the recommended value.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this document. For undated references, the latest edition (including all modifications) applies to this document. Test for power characteristics of wind turbines (IEC 61400-12-1..2005, IDT) GB/T 18451.2-2012 IEC /T R60688 AC power conversion to analog or digital signal of the electrical measurement transmitter (Electricalmeasuringtrans- ducersforconvertinga.c.electricalquantitiestoanalogueordigitalsignals Amendment 1 (1997) Amendment 2 (2001) IEC 61869-2 Transformers - Part 2. Supplementary technical requirements for current transformers (Instrumenttransformers-Part 2. Additionalrequirementsforcurrenttransformers) IEC 61869-3 Transformers - Part 3. Supplementary technical requirements for electromagnetic voltage transformers (Instrumenttransformers- Part 3. Additionalrequirementsforinductivevoltagetransformers) ISO /IEC 17025 General requirements for the testing and calibration of laboratory capabilities (Generalrequirementsforthecompetenceof testingandcalibrationlaboratories) ISO /IEC Guide98-3 Uncertainty of measurement - Part 3. Notification of uncertainty in measurement [Uncertaintyof measurement-Part 3. Guidetotheexpressionofuncertaintyinmeasurement (GUM..1995)] ......

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