Calculation Method for Acoustic Power Based on Multivariant Regression Method for AC Transmission Lines

WAN Baoquan; WU Xiaorui; PEI Chunming; CHEN Yuchao; ZHOU Bing

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Calculation Method for Acoustic Power Based on Multivariant Regression Method for AC Transmission Lines

更新时间：2025-12-08

- Calculation Method for Acoustic Power Based on Multivariant Regression Method for AC Transmission Lines
- Vol. 43, Issue 4, Pages: 1354-1361(2017)
- 作者机构：
  
  电网环境保护国家重点实验室(中国电力科学研究院)
- 作者简介：
- 基金信息：
- DOI：
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- Published Online：10 April 2017，
  
  Published：2017
- 稿件说明：
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WAN Baoquan, WU Xiaorui, PEI Chunming, et al. Calculation Method for Acoustic Power Based on Multivariant Regression Method for AC Transmission Lines[J]. 2017, 43(4): 1354-1361.
DOI：

WAN Baoquan, WU Xiaorui, PEI Chunming, et al. Calculation Method for Acoustic Power Based on Multivariant Regression Method for AC Transmission Lines[J]. 2017, 43(4): 1354-1361. DOI：

摘要

由于我国导线制造工艺、试验条件和电力运行环境的不同

在使用美国邦纳维尔电力公司(BPA)推荐的公式对我国特高压交流(UHVAC)输电线路可听噪声(AN)进行预测时

准确性仍有待提高。为此

利用电晕笼分别对分裂数为6、8、9、10和12的17种不同型式导线束的可听噪声水平进行了测量

并采用多元回归分析法分析获得了导线声功率计算方法。针对1 000 k V特高压交流示范工程河南焦作与湖北钟祥电磁环境长期观测站的可听噪声

分别采用BPA推荐公式与所提公式对它们进行了计算

并与实测值进行了对比。结果显示

所提公式得到的计算值与河南、湖北两地实测L50值偏差分别为0.66 d B和0.32 d B

小于BPA推荐公式偏差3.07 d B和2.14 d B。由此可见

针对我国特高压交流输电线路可听噪声问题

所提计算式比BPA推荐计算式的运算准确性更高。研究结果可为我国特高压交流输电线路可听噪声预测提供技术支撑。

Abstract

Due to the different conductor fabrication technologies

test conditions

and climate environment

the empirical formula recommended by Bonneville power administration（BPA） is imprecise when it is used in predicting the audible noise（AN） level of utral-high voltage alternate current（UHVAC） transmission lines in China. Therefore

the audible noise values of seventeen types of bundle conductors whose division numbers are 6

10 or 12 are measured by using the corona cage

and the calculation method of acoustic power is derived by using a multiple linear regression method. Then

the audible noise levels of two long-term stations（Jiaozuo

Henan Province; Zhongxiang

Hubei Province）

as the 1 000 k V demonstration projects

were calculated by using the BPA formula and the formula presented in this paper. It is shown that the deviation between calculated value by the proposed formula and long-term testing L50 value is 0.66 d B in Henan station

and it is 0.32 d B in Hubei station. Besides

the corresponding deviation by BPA formula is 3.07 d B and 2.14 d B. Therefore

it is demonstrated that the proposed formula is more precise than BPA formula in predicting the AN levels of UHVAC transmission lines. The research results can provide a technical reference for the AN prediction of the UHVAC transmission lines in China.

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