전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제62권4호
  • /
  • Pages.510-516
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  • 2013
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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3상 직렬공진형 고전압 커패시터 충전기의 해석 및 설계

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

  • 투고 : 2012.11.22
  • 심사 : 2013.03.15
  • 발행 : 2013.04.01
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초록

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.

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참고문헌

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