A parametric and compact nanosecond pulsed power generator for liquid phase discharge

Area of Science:

• Physics
• Electrical Engineering

Background:

• Nanosecond pulsed liquid discharge is crucial for diverse applications.
• Adjustable parameters and compact size of nanosecond pulsed power supplies are vital for research convenience.

Purpose of the Study:

• To develop a compact nanosecond pulsed power supply for liquid discharge.
• To achieve adjustable pulse width and frequency for enhanced experimental control.

Main Methods:

• Utilized capacity charging power supply technology for a compact volume (0.6 × 0.8 × 0.4 m³).
• Implemented a high-frequency induction feed control system for insulated gate bipolar transistor synchronization.
• Employed a non-inductive resistor for performance testing.

Main Results:

• Achieved a rising time of 100 ns for the nanosecond pulse power.
• Output pulse voltage ranged from 0 kV to 20 kV.
• Pulse width was adjustable from 4 µs to ~100 µs.
• Repetition frequency varied from 1 Hz to 300 Hz.
• Successfully excited needle-to-needle electrode discharge in liquid phase under various conditions.

Conclusions:

• The developed compact nanosecond pulsed power supply meets the requirements for liquid discharge research.
• The system's adjustable parameters and performance characteristics are suitable for diverse experimental setups.
• Demonstrated successful liquid phase discharge, validating the power supply's efficacy.