摘要
为了准确计算变电站噪声对周边环境影响的大小,通过对噪声衰减理论和变电站环境特点的分析,建立了变电站仿真数学模型,并基于该模型提出了变电站三维空间噪声预测算法。噪声衰减计算中,最复杂的是求解几何衰减中菲涅耳数,而求解菲涅耳数的关键是求解绕射声的声程差,利用凸包算法求解变电站内多声源、多障碍等复杂场景的声程差问题。仿真计算结果与实测结果对比显示,该模型和算法能够准确预测变电站周边三维空间中任意位置的噪声大小,为开展变电站环境噪声预评价、新建变电站规划设计中噪声控制优化以及运行变电站噪声的工程治理方案优化等提供技术支持和理论依据。
With the rapid development of China's economy, the construction of urban substations" has been on the increase. However, the environmental noise of substations has caught public's attention, and the complaints and disputes about environmental noise get steadily worse; therefore, the research on noise analysis and control is of practical significance.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2012年第13期I0024-I0024,207,共1页
Proceedings of the CSEE