特高压交流试验基地的噪声评估与治理

Assessment and Treatment of Noise in UHV AC Test Base

为了预测及评估特高压交流试验基地金具优化前后噪声分布情况,采用SoundPLAN软件对工程实际场地大小、布局及噪声源等进行建模,通过对模型中所建立的物体赋予物理属性及声源特性,进而计算工程场地内、外噪声分布情况。将计算所得的金具优化前后噪声分布图作比较,可以看出基地噪声值得到了明显降低,充分论证了该优化措施的有效性。另外,采用SoundPLAN软件对在主变压器处设置屏障墙前后的噪声进行了预测,结果表明,设置屏障墙后较之前噪声衰减了10dB,充分证明了该优化措施的可行性。

In order to forecast and assess the noise distribution in UHV AC test base before and after the fitting optimization, we used the SoundPLAN software to simulate the UHV AC test base, and calculated the noise distribution. Through comparing the two figures of noise distribution, it is indicated that the noise value reduces obviously after the fitting optimization. Moreover, we also used the SoundPLAN software to forecast the noise of the main transformer after setting a barrier; the results show that the value of noise reduces 10 dB, hence the viability of the measurement is verified.