Modelling of a Small Helical Magnetic Flux Compression Generator

Summary form only given. This paper presents a 0-dimensional simulation model of the helical flux-compression generator, adapted to the FOI generator design. The model, which was implemented in Matlab-Simulink, uses analytical expressions for the generator inductance. The model of resistive losses takes into account the heating of the conductors and the diffusion of the magnetic field into the conductors. The simulation results are compared to experimental data from two experiments with identical generators but with different seed currents, which has an impact on the resistive losses. Comparison shows that the agreement between measured and calculated inductance change with time is good and that the simulated current amplification during operation agrees well in both shape and amplitude.