1.5 MW 풍력 터빈 소음 측정 및 저주파 소음 특성 분석
1.5 MW Wind Turbine Noise Measurement and Analysis of Low-Frequency Noise
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참고문헌
키워드
초록
The noise from a 1.5 MW wind turbine was measured and the apparent sound power level, tonal audibility, and spectrumbalance were analyzed. The apparent sound power level and tonal audibility were analyzed according to IEC 61400-11: ed3. (2012-11). The measured noise data at the turbine site was mainly in the north-west (NW) and north-north-west (NNW) directions,and approximately 500 and 250 samples of total noise and background noise data were obtained. Three tone components wereobserved in the low frequency region below 100 Hz. The tones in the low frequency critical band with a center frequency of 78.1 Hzwere found to have a higher level than the hearing threshold. The possibility of wind turbine noise annoyance was also analyzedthrough the spectrum balance analysis.
Abstract
The noise from a 1.5 MW wind turbine was measured and the apparent sound power level, tonal audibility, and spectrumbalance were analyzed. The apparent sound power level and tonal audibility were analyzed according to IEC 61400-11: ed3. (2012-11). The measured noise data at the turbine site was mainly in the north-west (NW) and north-north-west (NNW) directions,and approximately 500 and 250 samples of total noise and background noise data were obtained. Three tone components wereobserved in the low frequency region below 100 Hz. The tones in the low frequency critical band with a center frequency of 78.1 Hzwere found to have a higher level than the hearing threshold. The possibility of wind turbine noise annoyance was also analyzedthrough the spectrum balance analysis.
참고문헌 (9)
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