CAJ | 학술논문

城市户内变电站的建立解决了城市电力需求，同时产生的噪声对环境也造成了严重污染。在城市变电站设计初期预估其噪声声压级水平(SPL)，及时采取降噪措施显得尤为重要。应用VA One软件，基于统计能量分析方法建立声学仿真模型，对某典型户内变电站的主变室内外空间声场进行模拟。探讨声源声压级强度、吸声墙高度和吸声系数对噪声场声压级的影响规律，为进一步对户内变电站噪声预报和降噪设计提供参考。
성시호내변전참적건립해결료성시전력수구，동시산생적조성대배경야조성료엄중오염。재성시변전참설계초기예고기조성성압급수평(SPL)，급시채취강조조시현득우위중요。응용VA One연건，기우통계능량분석방법건립성학방진모형，대모전형호내변전참적주변실내외공간성장진행모의。탐토성원성압급강도、흡성장고도화흡성계수대조성장성압급적영향규률，위진일보대호내변전참조성예보화강조설계제공삼고。
The indoor substations in cities have solved the problem of citizen electricity necessity, while they cause serious noise pollution. It is particularly important for the preliminary design to predict the Sound Pressure Level (SPL) of the substation noise, so as to take further measures to reduce the noise. In this paper, taking a typical indoor substation as an example, a model for acoustic simulation based on statistical energy analysis method is established and analyzed with the software VA One, and the indoor and outdoor sound fields of the main transformer chamber of the substation are simulated. Then, the effects of the intensity of the sound source SPL, the height and the absorption coefficient of the sound-absorbing wall on the SPL of the sound fields are studied. This work gives a reference for noise prediction and noise reduction design of indoor substations.