Simulation and Development of Portable Pulse Power Generator

Abstract

Pulsed power is defined as an energy storage system where energy is released in the form of an intense pulse or pulses. Pulsed power technology is characterized by the concentration of energy, both in time and space, to pulses of high intensity. Pulsations of energy augment power efficiency and enables new applications that are not possible with the conventional continuous flow of energy. In the past, absence of pulsed power technology was ascribed to the limitations of the energy storage components and switching components. But now, better capacitors, inductors and switches have made the new application of pulse technology possible. In recent years, several new technologies are introduced for the high voltage and high repetition rate pulse generation.

Development of high voltage high repetition rate pulse generator having compact size is important for bringing revolution in pulsed power applications. Hence it is very important to make compact and portable pulse power generator which can be use in aircraft launching as in defense application, high current utility back storage and high current testing of electrical apparatus.

A compact and portable pulsed power generator driven by portable battery has been designed and developed to produce the maximum peak current pulsed into high inductive load. Capacitor bank is used to store energy and that energy is discharged into inductive load to produced multi kilo-ampere current pulsed into high inductive load, so exploration of capacitor is needed. Electrolytic capacitors are used to make capacitor bank. A fly back converter is used as charging unit of capacitor bank. It steps up battery voltage to the high dc voltage to charge capacitor bank.. Full bridge rectifier rectifies a voltage at the secondary of flyback transformer. A relay timer circuit is also provided to stop the capacitor bank charging after required charged voltage. To avoid spurious triggering and to eliminate the ground interference optical isolation circuit is provided to driver circuit. A SCR with proper ratings is used as discharge switch. A triggering circuit of SCR also designed and tested. A proper value of inductive load is designed. To make circuit critically damped a proper value of resistor is also inserted into the load side.