【摘要】 特高压换流站需根据环评批复意见，执行现行国家标准对噪声控制的相关要求进行噪声计算，以满足厂界噪声达标要求。以某±800 kV换流站为研究对象，首先采用SoundPlan软件对站界噪声进行了计算，其次对降噪围墙结构选型进行研究，得出最优实体围墙与隔音屏障的组合方式，最后对降噪围墙不同组合方式的经济性进行了对比分析。结果表明，对于8 m高降噪围墙，随着实体围墙高度逐步增大，隔音屏障高度逐步降低，降噪围墙总体费用在逐步降低，降噪围墙采用7 m高框架填充墙+1 m高隔音屏障是工程造价最优的组合方案，工程设计中应优先选用。实体围墙采用半预制方案的工程费用多于框架填充墙方案，但较全预制方案费用低。从推动装配式角度出发，实体围墙应首选半预制方案。所述降噪措施及降噪围墙结构设计方案可供后续特高压换流站工程研究参考。更多还原

【Abstract】 The UHV Converter Station shall carry out noise calculation according to the relevant requirements of current national standards for noise control, so as to meet the requirements of noise standards at the plant boundary. Taking a ±800kV converter station as the research object. Firstly, the SoundPlan software is used to calculate the noise of the station boundary. Secondly, the selection of the noise reduction fence structure is studied to obtain the optimal combination mode of solid wall and sound insulation barrier. Finally, the economy of different combination modes of noise reduction fence are compared and analyzed. The results show that for the 8m high noise reduction wall, the overall cost of the noise reduction wall is gradually decreasing with the gradual increase of the physical wall height, and the noise reduction wall adopts the 7m high frame filled wall +1m high noise barrier, which is the optimal project cost combination scheme, and should be preferred in the engineering design. The engineering cost of semi-prefabricated solid wall is higher than that of frame-filled wall, but lower than that of full prefabricated wall. From the point of view of promoting assembly, the semi-prefabricated physical wall should be the first choice. The noise reduction measures and noise reduction wall structure design scheme can be used as reference for the follow-up UHV converter station engineering research.更多还原