宁夏电力Issue(1)：15-23,9.DOI:10.3969/j.issn.1672-3643.2026.01.003
某110kV户内变电站阻抗复合式消声器结构优化研究
Research on the structural optimization of an impedance composite muffler in a 110 kV indoor substation
摘要
Abstract
Noise pollution from urban indoor substations has become increasingly prominent.This study addresses the excessive noise levels at a 110 kV indoor substation by analyzing sound source characteristics and simulating noise propa-gation,systematically investigating the current noise status and distribution patterns.Taking into account the low-frequency noise reduction requirements at the main transformer room fan outlet,a novel impedance-composite muffler structure was proposed.Initial structural parameters were determined through theoretical derivation and calculation,and finite element numerical simulation was employed to analyze the sound field and flow field distribution characteristics.The results indicate that,compared with conventional resistive plate-type mufflers,the proposed impedance-composite muffler significantly improves insertion loss in the 450 Hz～750 Hz frequency range,while maintaining similar flow field distribution and pressure loss.This new muffler structure effectively meets low-frequency noise reduction requirements for indoor substations and provides a reference for muffler design in substation noise control projects.关键词
低频噪声/阻抗复合消声器/插入损失/压力损失Key words
low-frequency noise/impedance composite muffler/insertion loss/pressure loss分类
信息技术与安全科学引用本文复制引用
夏峻,郭科,宋江宁,马建刚,王良..某110kV户内变电站阻抗复合式消声器结构优化研究[J].宁夏电力,2026,(1):15-23,9.基金项目
国网宁夏电力有限公司科技项目(522982240003) （522982240003）
