开关柜局部放电超高频在线监测天线的研究  

Research on the UHF on-line monitoring antenna for partial discharge in switch cabinet

作　　者：陈磊 唐建 王智睿 Chen Lei;Tang Jian;Wang Zhirui(School of Electrical Engineering,Nanjing Institute of Technology,Nanjing 211167;State Grid Jiangsu Electric Power Co.,Ltd,Zhenjiang Power Supply Branch,Zhenjiang,Jiangsu 212000)

机构地区：[1]南京工程学院电力工程学院,南京211167 [2]国网江苏省电力有限公司镇江供电分公司,江苏镇江212000

出　　处：《电气技术》2019年第5期24-28,32,共6页Electrical Engineering

摘　　要：本文针对高压开关柜局部放电超高频检测天线应具有宽频带、高增益、小尺寸的性能要求,引入Koch分形结构和空气层理论,设计出了一种新型的Koch分形微带天线。采用仿真软件HFSS对天线模型的结构参数进行优化分析,选取一组最优参数制作天线实物。仿真结果是,天线尺寸180mm×180mm,VSWR<5的检测频带为535～825MHz,天线的平均增益为1.5dB。仿真结果表明该天线满足开关柜局部放电超高频检测要求。A novel Koch fractal micro strip antenna was designed by introducing the Koch fractal structure and air layer theory to meet the requirements of wide band, high gain and small size of the UHF detection antenna for high voltage switch cabinet partial discharge. The structural parameters of the antenna model are optimized and analyzed by using the simulation software HFSS. The simulation results are as follows: antenna size is 180mm×180mm, when VSWR<5, detection frequency band is 535~825MHz, and average antenna gain is 1.5dB. The simulation results show that the antenna meets the requirements of ultra-high frequency (UHF) detection in switch cabinet.

关 键 词：局部放电 超高频 分形结构 微带天线 

分 类 号：TM591[电气工程—电器]