高压电器2025，Vol.61Issue(8)：139-145,185,8.DOI:10.13296/j.1001-1609.hva.2025.08.018
防火墙吸声特性对变电站噪声影响研究
Research on Influence of Sound Absorption Characteristics of Firewall on Noise of Substation
摘要
Abstract
In this paper,the influence of the sound absorption characteristics of the firewall of high voltage subata-tion on the noise of the substation and the plant boundary is analyzed by way of predicting the noise of substation of the firewall under different sound absorption characteristic so to provide a theoretical basis for the optimization layout of the new substation and the noise control of the operated substation.With a 500 kV substation in Xiong'an as an ex-ample,the multi-point equivalent source model of transformer is constructed to simulate and predict noise of substa-tion,and the accuracy of the prediction result is verified by actual measurement.On this basis,two improvement schemes for sound absorption characteristics of firewalls are proposed,the noise attenuation of different locations of substation for various schemes is predicted.It is verified that the influence of the sound absorption characteristics of the firewall on the noise of the substation is mainly in the directions on both sides of the firewall.The noise reduction effect of the substation by improving medium and low frewncy sound absorption characterstic of firewall is the most ovbious.It is propsoed that in case of sound absorption and reduction of noise with the firewall,the sound absorption performance in the medium and low frequency range shall be particularly improved by the fire wall.The conclusion in this paper can provide reference for optimization layout of substation and noise reduction by the use of wirewall.关键词
变电站/噪声/防火墙/吸声特性Key words
substation/noise/firewall/sound absorption characteristics引用本文复制引用
李慧奇,陈腾飞,杨光..防火墙吸声特性对变电站噪声影响研究[J].高压电器,2025,61(8):139-145,185,8.基金项目
国家自然科学基金(51577066) （51577066）
河北省省级科技计划资助项目(20550901K). Project Supported by National Natural Science Foundation of China(51577066),Science and Technology Program of Hebei(20550901K). （20550901K）
