用于检测输电线路电晕放电的平面矩形螺旋天线

Planar Rectangular Spiral Antenna for Corona Discharge Detection of Transmission Lines

随着高压输电线路等级的提高,电晕放电的频繁发生给电力系统带来了巨大的潜在安全风险和电力损失,因此输电线路电晕放电的检测对电力系统具有重要意义。矩形螺旋天线以其阻抗平滑、圆极化特性好而得到了广泛的应用,因此设计一种平面矩形螺旋天线,用于检测输电线路电晕放电产生的射频电磁波。通过优化线圈的长度、间距和匝数,确定了天线的基本结构。通过实验验证了该天线实现检测电晕放电的可行性。

With the improvement of the grade of high-voltage transmission lines,the frequent occurrence of corona discharge has brought huge potential security risks and power losses to the power system.Therefore,the detection of corona discharge on transmission lines is of great significance to the power system.Rectangular spiral antenna is widely used because of its smooth impedance and good circular polarization.In this paper,a planar rectangular spiral antenna is designed to detect radio frequency electromagnetic waves generated by corona discharge on transmission lines.By optimizing the length,spacing and turns of the coil,the basic structure of the antenna is determined.The feasibility of detecting the corona discharge by the antenna is verified by experiments.