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GB/T 19068.2-2017Small wind turbines—Part 2: Test method (English PDF)

小型风力发电机组 第2部分:试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

November 1, 2017

Implementation date

May 1, 2018

Scope

GB/T 19068.2-2017 is the English-translated version of 小型风力发电机组 第2部分:试验方法.

GB/T 19068.2-2017 sets out the test conditions and test methods for small horizontal-axis wind turbines, grid-connected or off-grid, with a rotor swept area below 200 m² and a generated voltage below AC 1000 V or DC 1500 V. The test conditions cover the test site and its possible airflow distortion, the position of the wind measurement tower, site calibration and the measurement sector, and how the prototype is checked, connected and instrumented.

The methods include static balance of the blades and axial runout of the blade tips, power performance, noise to GB/T 22516, durability, vibration, and tests of the electrical subsystem and the coating.

Annexes deal with rotor inertia, test equipment and accuracy, and the format and content of the test report. It replaces GB/T 19068.2-2003, was issued on 1 November 2017 and has applied since 1 May 2018.

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Document preview — GB/T 19068.2-2017

National Standard of the People's Republic of China

ICS
27.180
Classification
F 11
Replacing
GB/T 19068.2-2003

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Foreword
  • 1 Scope
  • 2 Normative references
  • 3 Terms and definitions
  • 4 symbols and acronyms
  • 5 test conditions
  • 6 test method
  • 7 Test Report Formats and Contents
  • Appendix A (Normative) Wheel inertia measurement and calculation
  • Appendix B (informative) test equipment and accuracy
  • Appendix C (Normative) Test Report Formats and Contents

Foreword

GB/T 19068 "small wind turbine" is divided into the following three sections.

--- Part 1. Technical conditions;

--- Part 2. Test methods;

--- Part 3. Wind tunnel test methods.

This section GB/T 19068 Part 2.

This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB/T 19068.2-2003 "off-grid wind turbine generator Part 2 Test Methods."

This section compared with GB/T 19068.2-2003, in addition to editorial changes outside the main technical changes are as follows.

--- Expand the scope of this section (see Chapter 1, 2003 edition Chapter 1);

--- Increasing the requirements of the position of the wind tower inside the test site (see 5.1.3);

--- Increased site calibration and measurement sector requirements (see 5.1.6);

--- Increased the confirmation of the prototype test, inspection and commissioning, test prototype electrical connection and prototype testing equipment installation and layout Content (see 5.3, 5.4 and 5.5);

--- Increasing the static balance of blades and the tip of the axial runout test content (see 6.1);

--- Modify the unit power characteristics of the test (see 6.3, 2003 version 4.2 and 4.3);

--- Increasing the unit noise level in accordance with GB/T 22516 Determination of the choice (see 6.5.2);

--- Increased durability test content (see 6.6);

--- Increased vibration test and evaluation of the unit (see 6.7);

--- Increasing the electrical subsystem test and coating test content (see 6.8 and 6.9);

--- Deleted electromagnetic interference determination (see 2003 version 4.5.2);

--- Deleted all the provisions of the test on vertical axis wind turbine (see Chapter 1 of the 2003 edition, 3.3.2, Table 1 and A.2);

--- Increased test report on the power characteristics of the test and durability test (see Chapter 7);

--- Modify the appendix of the format and content of the test report to the normative appendix (see Appendix C, Appendix B of 2003).

1 Scope

GB/T 19068 provisions of this part of a small wind turbine (hereinafter referred to as "unit") test conditions and test methods.

This section applies to the wind wheel sweep area of less than 200m², the resulting voltage is lower than the AC 1000V or DC 1500V grid or Test of off-grid small horizontal axis wind turbine.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all revisions) applies to this document.

GB/T 9239.1 mechanical vibration constant (rigid) rotor balance quality requirements - Part 1: Specification and balance of tolerance test

GB/T 10760.2 Small generators for wind turbines - Part 2: Test methods

GB/T 17646-2017 small wind turbine

GB/T 18451.2-2012 wind turbine power characteristics test

GB/T 22516 wind turbine noise measurement method

JB/T 7879 wind machine product code preparation rules

JB/T 10399 Off-grid wind turbine rotor blades

3 Terms and definitions

GB/T 17646-2017 and GB/T 18451.2-2012 Terms and definitions apply to this document.

4 Symbols and abbreviations

The symbols and abbreviations defined in GB/T 17646-2017 and GB/T 18451.2-2012 apply to this document.

5 Test conditions

5.1 Test site

5.1.1 Overview

The test site may have a significant impact on the measured power characteristics of the unit under test, in particular, airflow distortions may cause wind speed on the tower Different from the wind speed of the unit, although they are related to each other.

Before the test, it is necessary to evaluate the factors that may cause airflow distortion at the test site so that

- Select the wind tower installation location;

- determine the appropriate measurement sector;

- assess the appropriate airflow distortion correction factor; […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Similar standards

Editions of GB/T 19068.2

EditionTitleRevisionStatus
GB/T 19068.2-2017Small wind turbines—Part 2: Test methodcurrent editionCurrent
GB/T 19068.2-2003Small wind turbines—Part 2: Test methodprevious editionSuperseded

This page sells the current edition, GB/T 19068.2-2017. Earlier editions are listed for reference only.

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