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Development of High Voltage and High Energy Density Capacitor for Pulsed Power Application  

이병윤 (한국전기연구원 신전력기기그룹)
정진교 (한국전기연구원 신전력기기그룹)
이우영 (한국전기연구원 신전력기기그룹)
박경엽 (한국전기연구원 신전력기기그룹)
이수휘 (삼화콘덴서 R&D Center 연구2팀)
김영광 (삼화콘덴서 R&D Center 연구3팀)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.52, no.5, 2003 , pp. 203-210 More about this Journal
Abstract
This paper describes high voltage and high energy density capacitor developed for pulsed power applications. The rated voltage of the developed capacitor is DC 22 [kV], the capacitance is 206 [$\mu$F] and the energy density is about 0.7 [kJ/kg]. Polypropylene film and kraft paper were used as the dielectrics. The ratio of the thickness of each dielectric material which consists of the composite dielectric structure, stacking factor and the termination method were determined by the charging and discharging tests on model capacitors. In terms of energy density, the developed capacitor has higher energy density compared with the products of foreign leading companies. In addition, it has been proved that the life expectancy can be more over 2000 shots through the charging and discharging test. The voltage reversal factor was 20%. This capacitor can be used as numerous discharge applications such as military, medical, industrial fields.
Keywords
high voltage; high energy density; capacitor; pulsed power; charging and discharging test; voltage reversal factor;
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