Capacitive Power Supplies for Non-Thermal Plasma Electrochemical Mini-Reactors

The main goal of the present work is to propose several high-performance electrical pulsed power supplies for non-thermal plasma (NTP) generation as an alternative technical solution to classical pulsed power supplies using a rotating mechanical pulse generator. The capacitive pulsed power supplies permit the generation of 50 Hz HV pulses from an AC power supply (usual AC transformer) at a double voltage of the transformer secondary. For the DC resistive-capacitive configuration the frequency can be adjusted. The discharge power can be modified by changing the value of the capacitors. The proposed scheme allows the parallel connection of two or more circuits that operate independently generating simultaneous impulse discharges. To assess the systems behavior, a Blue 137 dye solution treatment was performed.