Research on Energy Recovery System Based on HTSM for the Synchronous Induction Electromagnetic Launcher System

Abstract

For the energy loss issue of the synchronous induction electromagnetic launcher (SIEL) subjected to the traditional driving circuit, a high temperature superconducting magnet (HTSM)-based energy recovery system is proposed in this article to improve the energy management capability for the SIEL. This energy recovery system is composed of half-wave circuit, HTSM, dc chopper, and three-phase full-bridge inverter. If there is a demand to execute the mission of short-term continuous shooting, the HTSM can convert the reverse energy stored in capacitors into forward energy in preparation for the next shot. If the launch mission has ended and no demand of launch again, the dc chopper and the three-phase full-bridge inverter are used to pump the remaining energy back into the grid. Then, a mathematical model of the energy recovery system is established to verify the effectiveness of the above mentioned schemes. The simulation results show that not only does the energy recovery system can realize the reuse of remaining energy in the continuous shooting mission, but also it can complete the unidirectional energy transfer with the grid in unit power factor. Finally, based on the three-coil reconnection electromagnetic launcher (TCREL), a small test platform is built. The transfer process of the remaining energy from the capacitors to the HTSM and the working performance of the dc chopper are mainly tested in here. The experimental results basically verify the effectiveness of the energy recovery system.