Application of Correlation Analysis for Assessment of Infrasound Signals Emission by Wind Turbines

The study reported in this paper is concerned with areas related to developing methods of measuring, processing and analyzing infrasound noise caused by operation of wind farms. The paper contains the results of the correlation analysis of infrasound signals generated by a wind turbine with a rated capacity of 2 MW recorded by three independent measurement setups comprising identical components and characterized by the same technical parameters. The measurements of infrasound signals utilized a dedicated measurement system called INFRA, which was developed and built by KFB ACOUSTICS Sp. z o.o. In particular, the scope of the paper includes the results of correlation analysis in the time domain, which was carried out using the autocovariance function separately for each of the three measuring setups. Moreover, the courses of the cross-correlation function were calculated separately for each of the potential combinations of infrasound range recorded by the three measuring setups. In the second stage, a correlation analysis of the recorded infrasound signals in the frequency domain was performed, using the coherence function. In the next step, infrasound signals recorded in three setups were subjected to time-frequency transformations. In this part, the waveforms of the scalograms were determined by means of continuous wavelet transform. Wavelet coherence waveforms were calculated in order to determine the level of the correlation of the obtained dependencies in the time-frequency domain. The summary contains the results derived from using correlation analysis methods in the time, frequency and time-frequency domains.

[1]  R. Sardaro,et al.  Wind farms, farmland occupation and compensation: Evidences from landowners’ preferences through a stated choice survey in Italy , 2019, Energy Policy.

[2]  C. Hanning,et al.  Effects of industrial wind turbine noise on sleep and health. , 2012, Noise & health.

[3]  Noise and Infrasonic Noise at Workplaces in a Wind Farm , 2017 .

[4]  I. Heras‐Saizarbitoria,et al.  Wind energy and local communities: A manufacturer’s efforts to gain acceptance , 2018, Energy Policy.

[5]  Bob Thorne.  The Relevance of the Precautionary Principle to wind farm noise planning , 2014 .

[6]  Con J. Doolan,et al.  A Review of Wind Turbine Noise Perception, Annoyance and Low Frequency Emission , 2013 .

[7]  Tomasz Boczar,et al.  Studies on Infrasound Noise Emitted by Wind Turbines of Large Power , 2012 .

[8]  Hansa Rani Gupta,et al.  Power Spectrum Estimation using Welch Method for various Window Techniques , 2013 .

[9]  Christoph Pilger,et al.  The influence of periodic wind turbine noise on infrasound array measurements , 2017 .

[10]  Stephen E. Ambrose,et al.  Occupational Health and Industrial Wind Turbines , 2011 .

[11]  R. Dobie,et al.  "Wind Turbines and Health: A Critical Review of the Scientific Literature". , 2015, Journal of occupational and environmental medicine.

[12]  Geoff Leventhall,et al.  INFRASOUND FROM WIND TURBINES - FACT, FICTION OR DECEPTION , 2006 .

[13]  Mylan R. Cook,et al.  Initial infrasound source characterization using the phase and amplitude gradient estimator method , 2019, 5th International Conference on the Effects of Noise on Aquatic Life.

[14]  Johannes Pohl,et al.  Understanding stress effects of wind turbine noise – The integrated approach , 2018 .

[15]  Tomasz Boczar,et al.  Comparison of low frequency signals emitted by wind turbines of two different generator types , 2017 .

[16]  R. Tonin.  A Review of Wind Turbine-Generated Infrasound: Source, Measurement and Effect on Health , 2018 .

[17]  Christopher A Ollson,et al.  Health effects and wind turbines: A review of the literature , 2011, Environmental health : a global access science source.

[18]  Carmen M. E. Krogh.  Industrial Wind Turbine Development and Loss of Social Justice? , 2011 .

[19]  Alec N. Salt,et al.  Infrasound From Wind Turbines Could Affect Humans , 2011 .

[20]  A. Seidler,et al.  Health effects of wind turbines on humans in residential settings: Results of a scoping review , 2019, Environmental research.

[21]  Robert Y. McMurtry,et al.  Toward a Case Definition of Adverse Health Effects in the Environs of Industrial Wind Turbines: Facilitating a Clinical Diagnosis , 2011 .

[22]  K. Wolniewicz,et al.  The impact of supporting tower on wind turbine noise emission , 2019 .

[23]  A. Farboud,et al.  ‘Wind turbine syndrome’: fact or fiction? , 2013, The Journal of Laryngology & Otology.

[24]  P. Webster,et al.  Interdecadal changes in the ENSO-monsoon system , 1999 .

[25]  Brett Horner,et al.  Industrial wind turbines and adverse health effects. , 2014, Canadian journal of rural medicine : the official journal of the Society of Rural Physicians of Canada = Journal canadien de la medecine rurale : le journal officiel de la Societe de medecine rurale du Canada.

[26]  Colin H. Hansen,et al.  Infrasound and Low-Frequency Noise from Wind Turbines , 2016 .

[27]  Y. Li,et al.  Analysis of aerodynamic sound noise generated by a large-scaled wind turbine and its physiological evaluation , 2015, International Journal of Environmental Science and Technology.

[28]  Lindsay C. McCallum,et al.  Health-Based Audible Noise Guidelines Account for Infrasound and Low-Frequency Noise Produced by Wind Turbines , 2015, Front. Public Health.

[29]  N. Klenk,et al.  The politics of evidence: Conflicting social commitments and environmental priorities in the debate over wind energy and public health , 2019, Energy Research & Social Science.

[30]  C. Hanning,et al.  Wind turbine noise , 2012, BMJ : British Medical Journal.

[31]  Donata Kurpas,et al.  Health impact of wind farms. , 2013, Annals of agricultural and environmental medicine : AAEM.

[32]  Public receptivity in China towards wind energy generators: A survey experimental approach , 2019, Energy Policy.

[33]  J. Marshall.  Psycho-social disruption, information disorder, and the politics of wind farming , 2018, Energy Research & Social Science.

[34]  Robert D'Neal,et al.  Low frequency noise and infrasound from wind turbines , 2011 .

[35]  Janet Stephenson,et al.  Public perceptions of wind energy developments: Case studies from New Zealand , 2009 .

[36]  R. Phadke.  Resisting and Reconciling Big Wind: Middle Landscape Politics in the New American West , 2011 .

[37]  Stephen E. Ambrose,et al.  Wind Turbine Acoustic Investigation , 2012 .

[38]  J. Assink,et al.  Advances in Infrasonic Remote Sensing Methods , 2018, Infrasound Monitoring for Atmospheric Studies.

[39]  Nina Pierpont,et al.  Wind Turbine Syndrome: A Report on a Natural Experiment , 2009 .