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Power Cell-based Pulsed Power Modulator with Fast Rise Times

빠른 상승 시간을 갖는 파워 셀 기반 펄스 파워 모듈레이터

  • Lee, Seung-Hee (Department of Energy System Engineering, Chung-Ang University) ;
  • Song, Seung-Ho (Department of Energy System Engineering, Chung-Ang University) ;
  • Ryoo, Hong-Je (Department of Energy System Engineering, Chung-Ang University)
  • Received : 2020.09.21
  • Accepted : 2020.11.10
  • Published : 2021.02.20

Abstract

This paper describes the design of a power cell-based pulsed power modulator with fast rise times. The pulse-generating section of the pulse power modulator is a series stack of power cells. Each power cell is composed of a storage capacitor, a pulse switch, and a bypass diode. When the pulse switches are turned on, the capacitors are connected in series and the sum of voltages is applied to the load. For output pulses with fast rise times, an IGBT with fast turn-on characteristics is adopted as a pulse switch and the optimized gate driving method is used. Pspice simulation is performed to account for the gate driving method. A 10 kV, 12-power cell-based pulsed power modulator is tested under resistive load and plasma reactor load. The rise times of output pulses less than 20 ns are confirmed, showing that the pulsed power modulator can be effectively applied to pulsed power applications with fast rise times.

Keywords

Acknowledgement

이 논문은 2020년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임. (NRF-2020R1A2C2099663). 본 연구는 2018년도 지식경제부의 재원으로 한국에너지 기술평가원(KETEP)의 지원을 받아 수행한 연구 과제입니다. (No.20184030202270)

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