Simulation and Experiment of Multistage Reluctance Launcher with Residual Energy Recovery and Utilization Mode
Launching efficiency is an important performance indicator of reluctance launchers.In the traditional reluctance launch mode,the residual current in the drive coil generates reverse electromag-netic force,which reduces the projectile velocity and affects the launching efficiency of the system.As for the problem,a drive circuit of residual energy recovery and utilization mode with parallel charging is pro-posed.This mode uses a pulsed power supply to charge the first three stages of capacitors in parallel and recovers the residual energy from the previous stages through the last stage capacitors.The reverse force during the launching process of the previous stages is effectively suppressed,and the residual energy is reused in the last stage.the working principle of the driving circuit is expounded in detail with a four-stage reluctance launcher as an example,and its feasibility is verified by finite element simulation.A test platform of four-stage launching is built,and the mode is experimentally verified under two kinds of dif-ferent operating voltages,and the experimental results basically match with the simulation results.Both experimental and simulation results show that the model can effectively improve the launching efficiency of the multistage reluctance launcher.Finally,the capacitance parameters of the simulation model are optimized by using finite element software to further improve the launching efficiency of the system.
reluctance launcherscircuit improvementsresidual energy recoverymultistage launching
国家科技期刊平台
NSTL
万方数据
