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http://dx.doi.org/10.5370/KIEE.2013.62.4.510

Analysis and Design of a 3-phase Series-Resonant type High Voltage Capacitor Charger  

Lee, Byungha (Agency for Defense Development)
Park, Sangeun (Agency for Defense Development)
Cha, Hanju (Dept. of Electrical Engineering, Chungnam National University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.62, no.4, 2013 , pp. 510-516 More about this Journal
Abstract
This paper suggests a 3-phase series-resonant type high voltage capacitor charger for an EML pulsed power system. The operating principle on the charger is explained by an equivalent circuit. Additionally, we analyze the charging characteristic in one discontinuous conduction mode and three continuous conduction modes. The analysis shows that the resonant current per phase is two thirds of the 3-phase charger's average charging current and one third of the single-phase charger's average charging current with the same capacity. We suggest a design method of the 3-phase capacitor charger in each operational mode and present an example of 3.5 kW capacitor charger at ${\omega}_s=0.33{\omega}_r$. The 3.5 kW 3-phase capacitor charger prototype is assembled with a TI28335 controller and a 40 kJ, 7 kV capacitor. The design rules based on the analysis are verified by experiment.
Keywords
3-Phase series-resonant converter; High voltage capacitor charger; Pulsed power system;
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Times Cited By KSCI : 1  (Citation Analysis)
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