噪声与振动控制2018，Vol.38Issue(z1)：580-583,4.DOI:10.3969/j.issn.1006-1355.2018.Z1.125
多分裂型线的直流电晕噪声频谱特性研究
Study on the Spectrum Characteristics of DC Corona Noise from Multi-split Transmission Lines
摘要
Abstract
Audible noise generated by corona discharge from HVDC transmission lines may have adverse effects on the surrounding environment, so the characteristics of corona noise from conductors need to be studied. Based on the true split conductors erected in corona cage, the noise produced by DC corona is tested and studied in this paper. The spectrum characteristics of the corona noise from the multi split lines are obtained. Test results show that the corona noise of the conductors is a wide-band noise. It has a flat spectrum and is significantly different from various environmental noises in high-frequency band. According to the spectral trend characteristics of the corona noise and the frequency domain measurement data, a corona noise reduction method is proposed. In view of the same variation trend of the corona noise with sound level A and the 8kHz component produced by the true transmission lines, the quantitative relation between the sound level A and the 8kHz component is obtained. This research will provide a technical support for noise prediction of UHVDC transmission lines in our country.关键词
声学/电晕/频谱/电晕笼/环境噪声/特高压直流输电线路Key words
acoustics/frequency spectrum/corona cage/ambient noise/UHVDC transmission line分类
资源环境引用本文复制引用
刘元庆,陆家榆,李文昱,高晨光,张景晨..多分裂型线的直流电晕噪声频谱特性研究[J].噪声与振动控制,2018,38(z1):580-583,4.基金项目
国家电网公司总部科技资助项目和中国电力科学研究院创新基金资助项目(GY83-16-041) （GY83-16-041）
