A new pulsed power supply configuration for electromagnetic forming application

Abstract

Pulsed power supply (PPS) is one of the electromagnetic forming (EMF) system components. Advances in power electronics converters led to more efficient and controllable pulsed power supplies. Development of solid-state based topologies in pulsed power applications have been considered in recent years. Using these topologies gives compactness and easiness to EMF systems unlike conventional structures. The pulses magnitude and frequency of them are not the same as other pulsed power application. Therefore, most structures introduced are bulky and not efficient. This paper proposes a new configuration for pulsed power supply in electromagnetic forming system. The proposed system is based on Z-source full-bridge inverter that has the flexibility in terms of controlling energy and charging the capacitor to provide proper pulse for electromagnetic forming. In conventional electromagnetic forming systems, power supplies often don't have power electronics configurations. Therefore, the magnitude and frequency of the pulses are not controllable. Using solid-state structure can compensate these defects. Simulation and experimental results are included to verify the proposed system performance.