Open AccessResearch Progress of evaluation method and control limit for Substation low frequency noise
Author(s) -
Sheng Hu,
Wen Wei,
Xiaofeng Wu,
Wei Chen,
Ling Lü,
Jiwen Peng
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/782/3/032117
Subject(s) - noise (video) , limit (mathematics) , loudness , acoustics , annoyance , noise control , computer science , mathematics , noise reduction , physics , artificial intelligence , mathematical analysis , image (mathematics)
At present, the low frequency noise control limit standards are only suitable for indoor structural noise control, and it is urgent to establish standards or specifications for substation low frequency noise evaluation and limit value. According to the theory of spectrum gauge weight, the equivalent continuous A sound level decays the low frequency part of noise greatly, only from the aspect of loudness, it only considers the feeling of human hearing to noise, and fails to fully consider the subjective feeling of people’s annoyance to low frequency noise. The method of low frequency noise weight correction needs to be further studied. In this paper, the evaluation method of low frequency noise and the control limit standard are fully investigated, which can be used as a reference for the formulation of low frequency noise limit standard in our country.