The influences of low temperature on system performance of inductive pulsed power supplies

In order to limit the energy loss of Inductive Pulsed Power Supplies (IPPS), low temperature environment is introduced, which not only significantly reduces the resistances of the inductors, but also slightly reduces the inductances. In order to evaluate the overall influences of the low temperature, 8 performance indices are proposed, i.e. charging time/efficiency T₀/η, primary/secondary current multiplication ratio m₁/m₂, ratio of the maximum capacitive energy over the total inductive energy η_C, maximum voltage across the main switch V_sopm, muzzle velocity proportional term xv, total energy loss caused by the inductors´ internal resistances E_R. Theoretical analyses, simulation studies and experimental validation methods are adopted to analyze this multi-parameter problem. The studies indicate that most of the indices (except m₁, V_Sopm and η_C) can be improved after adopting low temperature for any inductor and system parameters. As for the inductors with certain parameters, these 3 indices m₁, V_Sopm and η_C can also be improved.