標準號：IEC 61400-11 Edition 3.1-2018
中文標準名稱：風輪發電機系統.第11部分:噪音測量技術
英文標準名稱：Wind turbines - Part 11: Acoustic noise measurement techniques
標準類型：F11
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：F11
國際標準分類號：17.140.20;27.180
引用標準：IEC 60688-2012;IEC 60942-2003;IEC 61260-1995;IEC 61400-12-1-2005;IEC 61400-12-2-2013;IEC 61672-1-2013;IEC 61672-2-2013;IEC 61672-2 AMD 1-2017;IEC 61672-2 Edition 2.1-2017;IEC 61672-3-2013;ISO/IEC GUIDE 98-3-2008
適用范圍：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 away enough 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. This International 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. A method for small wind turbines is described in Annex F.