Substation Noise Research Based on Geometric Divergence

Abstract

with increasingly strained urban land resources, fully sealed substation with high integration level has become the mainstream scheme for 110kV power distribution network. Therefore, this thesis mainly studies the noise problem of prefabricated distribution substation, aiming to solve the noise interference of fully sealed compact substation. This thesis introduces the computational formulas of noise attenuation firstly. Then, it establishes the computing model of substation attenuation based on geometric divergence in combination of the theory for sound propagation in media. At last, it offers computation to the noise propagation of point sound source, plane sound source, and global sound source of substation respectively; and concludes the attenuation relationships between noise and distance in different sound sources.