摘要
笔者主要分析GIS典型绝缘缺陷引起的局部放电(PD)过程,并应用FDTD算法,分别以理想的高斯脉冲信号和真实PD电流信号为激励源,研究电磁波在GIS内部的传播特性,结果表明:PD实际电流信号与理想高斯脉冲激励下的电磁波相差较大,PD超高频电磁波传播特性仿真研究宜采用实测PD信号作为模拟激励源。
The partial discharges （PD） caused by classic GIS insulation flaws are analyzed, and the propagation characteristic of electromagnetic wave excited by ideal Gausspulse signal and actual PD current signal in GIS is investigated based on FDTD algorithm. The calculation results show that there is clear difference between the propagation characteristics of the two electromagnetic waves excited by ideal Gauss pulse signal and actual PD current signal. Actual PD signal should preferably be taken as exciting sources for simulation of propagation characteristic of PD-excited electromagnetic wave.
出处
《高压电器》
CAS
CSCD
北大核心
2011年第12期34-38,共5页
High Voltage Apparatus
关键词
GIS
局放
电磁波
传播特性
GIS
partial discharge
electromagnetic wave
propagation characteristic
