Effect of Rise Time on PD Pulse Features under Repetitive Square Wave Voltages

被引:120
作者
Wang, Peng [1 ,2 ]
Cavallini, Andrea [1 ]
Montanari, Gian Carlo [1 ]
Wu, Guangning [2 ]
机构
[1] Univ Bologna, Lab Innovat Technol, I-40136 Bologna, Italy
[2] SW Jiaotong Univ, Sch Elect Engn, Chengdu 610031, Sichuan, Peoples R China
关键词
Partial discharges; converters; motor drives; magnet wire; pulse width modulated inverters; induction motors; square wave generators; UHF filters; antennas; PARTIAL DISCHARGES; FAILURE-MECHANISM; SURGE VOLTAGE; INVERTER; INSULATION;
D O I
10.1109/TDEI.2013.6451364
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper focuses on the influence of repetitive square wave voltage rise time on partial discharge pulse characteristics in the ultra-high frequency range. Paerial Discharge (PD) tests on single-point contact crossed pairs were carried out using repetitive square wave voltages with a wide range of rise times, from 200 ns to 400. mu s, including also 50 Hz sinusoidal voltage waveforms. Experimental results show that rise time has a significant influence on magnitude and frequency spectrum of PD pulses. Voltages of shorter rise times generate larger PD pulses with a predominance of high frequency components in the energy spectrum. Interpretations are presented for this phenomenon.
引用
收藏
页码:245 / 254
页数:10
相关论文
共 20 条