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IEC 61400-11

Wind Turbine Generator Systems - Part 11: Acoustic Noise Measurement Techniques

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Organization: IEC
Publication Date: 1 December 2002
Status: inactive
Page Count: 50
ICS Code (Wind turbine energy systems): 27.180
scope:

This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission assessment at locations close to the machine, in order to avoid errors due to sound propagation, but far enough away to allow for the finite source size. The procedures described are different in some respects from those that would be adopted for noise assessment in community noise studies. They are intended to facilitate characterisation of wind turbine noise with respect to a range of wind speeds and directions. Standardisation of measurement procedures will also facilitate comparisons between different wind turbines.

The procedures present methodologies that will enable the noise emissions of a single wind turbine to be characterised in a consistent and accurate manner. These procedures include the following:

• location of acoustic measurement positions;

• requirements for the acquisition of acoustic, meteorological, and associated wind turbine operational data;

• analysis of the data obtained and the content for the data report; and

• definition of specific acoustic emission parameters, and associated descriptors which are used for making environmental assessments.

The standard is not restricted to wind turbines of a particular size or type. The procedures described in this standard allow for the thorough description of the noise emission from a wind turbine. If, in some cases, less comprehensive measurements are needed, such measurements are made according to the relevant parts of this standard.

Document History

October 1, 2019
WIND TURBINES – Part 11: Acoustic noise measurement techniques
A description is not available for this item.
June 1, 2018
AMENDMENT 1 Wind turbines – Part 11: Acoustic noise measurement techniques
A description is not available for this item.
June 1, 2018
Wind turbines – Part 11: Acoustic noise measurement techniques
This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission...
November 1, 2012
Wind turbines – Part 11: Acoustic noise measurement techniques
This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission...
November 1, 2006
Wind turbine generator systems – Part 11: Acoustic noise measurement techniques
This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission...
December 1, 2002
Wind Turbine Generator Systems - Part 11: Acoustic Noise Measurement Techniques
This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised.  This involves using measurement methods appropriate to noise emission...
IEC 61400-11
December 1, 2002
Wind Turbine Generator Systems - Part 11: Acoustic Noise Measurement Techniques
This part of IEC 61400 presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission...
September 1, 1998
Wind Turbine Generator Systems - Part 11: Acoustic Noise Measurement Techniques
A description is not available for this item.

References

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