高压电器2017，Vol.53Issue(10)：56-60,67,6.DOI:10.13296/j.1001-1609.hva.2017.10.010
特高频天线的局部放电时域特性分析
Analysis of Time-domain Characteristic of Ultra-high Frequency Antenna Detecting Partial Discharge
黄炎光 1刘宇舜 2田妍 1李鹏飞 2曲德宇 1周文俊 2喻剑辉2
作者信息
- 1. 广州供电局有限公司,广州510620
- 2. 武汉大学电气工程学院,武汉430072
- 折叠
摘要
Abstract
The analysis of time-domain signal is a significance method of pattern recognition and fault degree identification in partial discharge(PD)detection.Frequency domain parameter is usually used as the performance judgment standard of ultra-high frequency(UHF)detecting antenna.However,this method is unable to judge the impulse response characteristic of UHF antenna in the time-domain.The time-domain characteristics test system of PD UHF detecting antenna based on reciprocity theorem for antenna is built in this paper.Three time domain judgment parameter(oscillation time,correlation coefficient and energy of first waveform)for UHF detecting antenna is proposed in this paper.The time-domain characteristic of four representative ultra-wide band UHF antennas (the ridged horn antenna,the Vivaldi antenna,the micros-trip antenna and the spiral antenna and)has been tested.The results show that the ridged horn antenna and the Vivaldi antenna present the excellent time-domain characteristics and retain the characteristics of signal source maximally.The impulse response test results of four UHF detecting antenna are verified in simulation PD test.The results show that the ridged horn antenna and the Vivaldi antenna are appropriate for PD detecting.关键词
局部放电/UHF检测天线/时域特性/脉冲响应/加脊喇叭天线/Vivaldi天线Key words
partial discharge/UHF detecting antenna/time-domain characteristic/impulse response/ridged horn antenna/vivaldi antenna引用本文复制引用
黄炎光,刘宇舜,田妍,李鹏飞,曲德宇,周文俊,喻剑辉..特高频天线的局部放电时域特性分析[J].高压电器,2017,53(10):56-60,67,6.
