Preliminary Analysis and Simulation of a 20-Hz Repetitive Superconducting Pulsed Power Supply

Superconducting pulsed power supplies (SPPSs) have attracted more and more attention because of their advantages of high energy storage density, long energy storage time, low loss, and low power requirements for charging power sources. In order to improve energy efficiency and output continuous pulse currents, a 20-Hz repetitive SPPS based on high temperature superconducting pulsed power transformer (HTSPPT) and residual energy recovery method is proposed and researched in this article. The main principle is that the residual energy is recovered and used for the next cycle of the repetitive SPPS for improving energy efficiency, shortening the charging time, and increasing the operating frequency. The working principle and procedure of the repetitive SPPS are introduced and analyzed in detail, and simulations are carried out to study the characteristics of the repetitive SPPS. The effects of the initial capacitor voltage and the switching trigger time of each cycle on the output characteristics are analyzed. The simulation results show that the repetitive SPPS with personalized trigger time can output a stable repetitive pulse current, that is, the output characteristics are stable.