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GB/T 36994-2018Wind turbines—Test procedure of grid adaptability (English PDF)

风力发电机组电网适应性测试规程

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

July 1, 2019

Scope

GB/T 36994-2018 is the English-translated version of 风力发电机组电网适应性测试规程.

GB/T 36994-2018 sets out how to test whether a wind turbine can keep operating correctly when the grid it feeds is disturbed. It covers five kinds of disturbance: voltage deviation, frequency deviation, three-phase voltage imbalance, flicker and harmonic voltage.

For each it describes the test content, then the test equipment, with the grid disturbance generating device and the measuring equipment, and the test procedure, from the basic conditions to the no-load test with the turbine disconnected and the load test with the turbine connected.

It also lists what the test report must contain: recorded data, calculated parameters and uncertainty, with informative annexes on determining response time and on a sample report format.

It applies to grid-connected wind turbines, was issued on 28 December 2018 and has applied since 1 July 2019.

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Document preview — GB/T 36994-2018

National Standard of the People's Republic of China

ICS: 27.180
Classification: F 11

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

Foreword
1 Scope
2 Normative references
3 Terms and Definitions
4 symbol
5 Basic requirements
6 Test content
6.1 Voltage deviation adaptability
6.2 Frequency deviation adaptability
6.3 Three-phase voltage imbalance adaptability
6.4 Flicker Adaptability
6.5 Harmonic voltage adaptability
7 test equipment
7.1 Test device
7.2 Measuring equipment
8 test procedure
8.1 Basic conditions
8.2 No-load test
8.3 Load Test
9 Test report content
9.1 Test Record Data
9.2 Calculation parameter indicator
9.3 Uncertainty
Appendix A (informative) Response time determination and calculation
Appendix B (informative) Sample format report

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the test content, test equipment and test procedures for the wind farm adaptability test of wind turbines (hereinafter referred to as wind turbines). And test report content.

This standard applies to grid-connected wind turbines.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 12325 power quality supply voltage deviation

GB/T 12326 power quality voltage fluctuations and flicker

GB/T 14549 power quality utility grid harmonics

GB/T 15543 power quality three-phase voltage imbalance

GB/T 19963 Wind farm access to power system technical regulations

GB/T 24337 Power Quality Utility Grid Interharmonics

JJF1059.1 Measurement Uncertainty Evaluation and Representation

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Wind turbine adaptability

Wind turbine response in grid voltage deviation, frequency deviation, three-phase voltage imbalance, voltage fluctuations and flicker, harmonic voltage characteristic.

3.2 Grid point/test point

The point at which the voltage or frequency change occurs is the connection point between the grid disturbance generating device and the high voltage side of the wind turbine step-up transformer.

3.3 No-load test

In the case where the wind turbine is disconnected from the grid, the test device produces a test for voltage or frequency changes at the test point.

3.4 Load test

In the case where the wind turbine is connected to the grid, the test device produces a test for voltage or frequency changes at the test point.

3.5 Wind turbine inertia response

After the sudden change of the grid frequency, the characteristics of the wind turbine's active output change with time, referred to as the inertia response.

......
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

Normative references

GB/T 19963

Cited by

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GB/T 19962-2026|GB/T 47032-2026|GB/T 47555-2026|GB/T 47557-2026|GB/T 47558-2026|GB/T 47559-2026

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