Modelling of an Electromagnetic Space Propulsion System for Pulse Mode Operation

Abstract

The chemical rocket propulsion has limitations while applied to space application, with respect to specific impulse, delta-v, volume and stored energy, which can be overcome by electric propulsion system. Among various type of Electric propulsion system, the electromagnetic propulsion has added advantages for many space applications. In this paper an electromagnetic propulsion system is considered known as Magnetoplasmadynamic thrusters (MPD). The MPD thrust works based on principle of Lorentz force.The thruster is modeled based on Paschen's Law and snow plow model to operate it in pulsed mode to generate instantaneous peak thrust. This model includes the designing of high-current power supply, ignition circuit, and electrodes. Simulations have been performed by considering all the parameters involved in the model. The design parameters are analyzed for optimum value to get maximum thrust force.