高压电器2011，Vol.47Issue(9)：26-30,5.
Study on Electromagnetic Environment of AC-DC Hybrid Transmission Lines
Study on Electromagnetic Environment of AC-DC Hybrid Transmission Lines
ZHOU Yi-feng 1LI Hua 1LIN Fu-chang 1LI Qian 1YU Feng 1ZHANG Xiao-bo1
作者信息
摘要
Abstract
With the expansion of electricity demand,transmission corridors are becoming scarce.AC and DC circuits running parallel to each other and sharing the same right-of-way or even the same tower become a possible option.Due to the existence of the adjacent line,space electromagnetic field and corona of another line may be changed.Different characteristics of two line types make the electromagnetic field of transmission corridors become more complex.Hybrid line is viewed as a whole.The calculation contains surface gradient,ground level electric field,radio interference and audible noise.Interaction between the two line types is considered.The calculation results show that the interaction is mainly concentrated in the inner corridor.In the role of DC electric field,AC electric field is no longer symmetrical and ground level electric field is significantly enhanced.Under the negative DC voltage,the positive corona of the waveform is significantly strengthened,and it is inhibited under the positive DC voltage.It is better to erect the positive DC line near AC line.关键词
hybrid corridor/surface gradient/radio interference/audible noiseKey words
hybrid corridor/surface gradient/radio interference/audible noise分类
信息技术与安全科学引用本文复制引用
ZHOU Yi-feng,LI Hua,LIN Fu-chang,LI Qian,YU Feng,ZHANG Xiao-bo..Study on Electromagnetic Environment of AC-DC Hybrid Transmission Lines[J].高压电器,2011,47(9):26-30,5.
