高電壓大電容負載下雷電沖擊電壓波形的調試
張建新，趙芳芳，宋衡
河南省高壓電器研究所，河南 平頂山 467001
摘 要：介紹了一種改善大電容負載的雷電沖擊電壓試驗輸出波形的方法，分析了容性負載時雷電沖擊電壓波形振蕩和過沖的原因，指出了調試雷電沖擊電壓波形常用的措施，并在沖擊電壓試驗回路中串聯RLC濾波電路來對現用低通濾波電路進行改進。仿真分析表明，改進后的RLC低通濾波電路比原先的RC低通濾波電路的波形平滑度好，雷電沖擊電壓波形波頭振蕩得到明顯改善。
關鍵詞：雷電沖擊電壓波形；大電容負載；波形過沖；RLC濾波電路
中圖分類號：TM866 文獻標識碼：B 文章編號：1007-3175(2015)04-0027-04
Debugging of Lightning Impulse Voltage Waveform Under High Voltage Large Capacitive Load
ZHANG Jian-xin, ZHAO Fang-fang, SONG Heng
Henan High Voltage Electric Apparatus Research Institute, Pingdingshan 467001, China
Abstract: Introduction was made to a method improving the output waveform of lightning impulse voltage test for large capacitive loads. This paper analyzed the reason of lightning impulse voltage waveform oscillation and overshoot under capacitive load. The common measures were used to debug lightning impulse voltage waveform and the existing low-pass filter circuit was improved by the way of series RLC filter circuit in impulse voltage test circuit. The simulation result shows that the waveform of the improved RLC low-pass filter circuit is smoother than the waveform of the original circuit. The lightning impulse voltage waveform oscillation has been improved obviously.
Key words: lightning impulse voltage waveform; large capacitive load; waveform overshoot; RLC filter circuit
參考文獻
[1] 張仁豫，陳昌漁，王昌長.高電壓試驗技術[M].3版.北京：清華大學出版社，2009.
