Development and investigation of two optimized soft switching pulsed power resonant converters for RF applications

Author

Ji, Chen ; Watson, Alan ; Zanchetta, Pericle ; Bland, Michael ; Clare, Jon ; Wheeler, Pat ; Reass, William

Author_Institution

Univ. of Nottingham, Nottingham, UK

fYear

2013

fDate

16-21 June 2013

Firstpage

1

Lastpage

6

Abstract

This paper focuses on the closed-loop voltage control of two classical soft switching pulsed power resonant converters for radio frequency applications. Based on the optimization algorithms proposed in the previous work, the two converters are designed to produce a series of “long pulse” voltage waveforms, each one rated at 9MW, 120kV, 1ms, 1% voltage ripple. A novel PI + Repetitive Control strategy is employed for voltage pulse regulation, resulting in a fast rise time, reduced overshoot and constant amplitude. The soft-switching of semiconductor devices is ensured throughout the pulse by a combined frequency and phase shift modulation, in order to maximize the system conversion efficiency.

Keywords

PI control; closed loop systems; power convertors; power semiconductor switches; pulsed power supplies; voltage control; zero voltage switching; PI + repetitive control strategy; RF applications; closed-loop voltage control; constant amplitude; fast rise time; frequency shift modulation; optimized soft switching pulsed power resonant converters; overshoot reduction; phase shift modulation; power 9 MW; radio frequency applications; semiconductor device soft-switching; system conversion efficiency maximization; voltage 120 kV; voltage pulse regulation; voltage ripple; Capacitance; Capacitors; Frequency modulation; Phase modulation; Resonant frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Pulsed Power Conference (PPC), 2013 19th IEEE

Conference_Location

San Francisco, CA

ISSN

2158-4915

Type

conf

DOI

10.1109/PPC.2013.6627428

Filename

6627428