电测与仪表2016，Vol.53Issue(18)：21-27,50,8.
局部放电检测用超高频天线的设计与性能对比
Design and comparison of UHF antenna for partial discharge detection
摘要
Abstract
According to the demands of ultra-high frequency ( UHF) partial discharge ( PD) detection used in high voltage ( HV) electrical equipment , four kinds of miniaturized UHF antennas with different elements and sizes are de-signed and manufactured in this paper based on PCB technology .The performance parameters of the four antennas have been analyzed by simulation to test the feasibility of UHF antenna in PD detecting application .Their port charac-teristics, such as voltage standing wave ratio (VSWR), have been verified by vector network analyzer .The coeffi-cients of the four antennas , which express the relationship between output signal and electric field strength under dif -ferent frequencies , are calibrated in formulas and curves based on the standard EM field modulated in GTEM cell .A PD detecting experimental platform has been set up , using the point-plane discharge model as the partial discharge source and the pulse current detection method to measure the quantity of partial discharge signal .The experiments of UHF signals detection have been performed .It is proved by both simulations and experiments that the micro-strip an-tenna and the slot antenna have low bandwidth and gain .On the contrary , the dipole antenna and the spiral antenna have low loss , high gain and good impedance matching , and work well in UHF PD signal detection .关键词
局部放电/超高频法/微带天线/缝隙天线/偶极子天线/螺旋天线Key words
partial discharge/ultra high frequency method/micro-strip antenna/slot antenna/dipole antenna/spiral antenna分类
信息技术与安全科学引用本文复制引用
杨景刚,刘竞存,贾勇勇,高山,陶风波,张国钢..局部放电检测用超高频天线的设计与性能对比[J].电测与仪表,2016,53(18):21-27,50,8.基金项目
江苏省电力公司科技项目（ J2014035）；国家自然科学基金资助项目 （）
