High-voltage pulsed plasma generation with frequency control for streamer initiation in liquid phase

Plotnikov, Viacheslav; Dı́az, Gerardo

doi:10.1088/2516-1067/ab69d7

Cited by 2 publications

(1 citation statement)

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“…Many of them are based on the classical architecture of a Marx generator (shown in Figure 1), such as in [13][14][15][16][17], transmission lines and Blumleinbased generators [18,19], RLC pulse-forming networks [20], and pulse transformer-based generators [21]. Besides biomedical treatments, pulsed power technologies have many other applications, such as plasma science [22][23][24], industrial process [25], ultrawideband radiation, and EMP generation [26][27][28][29]. All these applications use architectures similar to the previously mentioned high-voltage pulse generators.…”

Section: Introductionmentioning

confidence: 99%

New Architecture of Solid-State High-Voltage Pulse Generators

2022

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The application of the nanosecond pulsed electric field (nsPEF) for biomedical treatments has gained more interest in recent decades due to the development of pulsed power technologies which provides the ability to control the electric field dose applied during tests. In this context, the proposed paper describes a new architecture of solid-state high-voltage pulse generators (SS-HVPG) designed to generate fully customised sequences of quasi-rectangular pulses. The idea is based on the combination of semiconductor switches (IGBT/MOSFET) known for their flexibility and controllability with special magnetic switches to build compact and modular generators. The proposed structure is inspired by the most known pulse generator of Marx, but mixes its two variants for negative and positive polarities. Thus, the polarity of the generated pulses can be freely selected. In addition to that, the use of IGBTs/MOSFET ensures a tunable repetition rate and pulse width. The capacitors are charged via a series of magnetic switches and a flyback DC–DC converter which provides fast and efficient charging and also an adjustable amplitude of the output pulses. The design can be easily simplified giving two other modified structures, based on the same idea, for mono-polar operating (only positive or only negative pulses) with a reduced number of switches. A SPICE simulation of the generator and results of experimental tests carried out on a three stages generator are presented. The obtained results confirm the operating principle and the claimed performances of the new structure.

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