摘要
为研究浪涌保护器的特性,采用仿真分析并进行了大量的实验研究,得出了电容耦合对组合波短路电流波形参数的影响规律:①耦合电容的加入,显著改变了组合波短路电流的波形参数,使电流波的波前时间和半峰值时间减小,反极性振荡和虚拟阻抗增加。②随着耦合电容容量的增加,组合波短路电流波形的波前时间和半峰值时间增加,反极性振荡和虚拟阻抗减小,当电容容量增至无限大时,短路电流波形参数和未加任何耦合组件时相同。③压敏电阻负载条件下,耦合电容对组合波短路电流波形的波前时间、半峰值时间以及反极性振荡和虚拟电阻较无负载时的参数值偏小。研究结果对组合波回路的设计提供了一定的理论指导。
The simulation analysis and experimental research had been carried for studying the characteristics of the SPD （surge protective device）, and the influence of capacitor coupling mode on short current waveform parameters of CWG （combination wave generator） were received. While connecting into coupling capacitor, the front time and half peak time of short current of CWG are reduced obviously, whereas the anti-polarity current shock and virtual impedance increased. With the coupling capacitance increases, the front time and half peak time of short current wave of CWG increased, whereas the anti-polarity current shock and virtual impedance reduced. With the varisotrs load, the waveform parameters including the front time and half peak time of short-circuit current wave and virtual impedance decrease comparing to the situation of no load. The researching results will provide the theoretical foundation for the circuit design of CWG.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2009年第11期2647-2651,共5页
High Voltage Engineering
基金
陕西省重大科技创新项目(2008ZKC02-10)~~
关键词
浪涌保护器
仿真分析
电容耦合
组合波
短路电流
波形参数
SPD（ surge protective device）
simulation analysis
capacitor coupling
VWG（ combination wave generator）
short current
waveform parameters
