Analysis of infrasound noise emitted by high-power wind turbine with synchronous generator

Author

Malec, T. ; Boczar, T.

Author_Institution

Fac. of Electr. Eng., Autom. Control & Comput. Sci., Opole Univ. of Technol., Opole, Poland

fYear

2013

fDate

5-8 May 2013

Firstpage

400

Lastpage

405

Abstract

Analysis results of sound pressure level of infrasound noise generated by high-power wind turbine Vensys type 62, which is operated for five years with an electrical capacity of 1.2 MW, are presented in the paper. Frequency and time-frequency spectrograms calculated for recorded low-frequency signals with respect to all registered changes of electrical power generated and the number of rotor revolutions per minute are presented. All measured sound pressure levels have been evaluated with and without the use of G weighting curve, which have helped to determine the size of infrasound impact of turbines and to analyze the influence of regarded parameters on this impact range of changes. Values obtained from measurement were referred to and compared with the limits specified in legislations existing in this area.

Keywords

noise generators; rotors; synchronous generators; time-frequency analysis; wind turbines; electrical capacity; electrical power generation; high-power wind turbine Vensys type 62; infrasound noise emission analysis; infrasound noise generation; legislations; low-frequency signals; power 1.2 MW; rotor; sound pressure level; synchronous generator; time-frequency spectrograms; Acoustics; Electricity; Frequency measurement; Noise; Pressure measurement; Rotors; Wind turbines; infrasound noise; synchronous generator; wind turbine;

fLanguage

English

Publisher

ieee

Conference_Titel

Environment and Electrical Engineering (EEEIC), 2013 12th International Conference on

Conference_Location

Wroclaw

Print_ISBN

978-1-4673-3060-2

Type

conf

DOI

10.1109/EEEIC.2013.6549549

Filename

6549549