电磁发射系统的脉冲成形网络建模与仿真分析

Modeling and Simulation Analysis of Pulsed Forming Network in Electromagnetic Launcher

电磁轨道发射的脉冲功率电源一般采用脉冲成形网络(PFN),为了探索电磁轨道发射器和电源的匹配关系,文章在对电磁发射过程中的电磁过程和物理过程进行研究和分析的基础上,建立了结合PFN电路和电枢运动过程于一体的仿真模型;该模型包括了发射过程中轨道的动态电阻和动态电感,利用该模型进行了单模块和6模块PFN仿真分析,结果表明仿真计算的数据与实验数据相吻合;利用该模型进一步计算分析了影响电磁发射效率的几种影响因素。

Pulsed Forming Network has heen used as power for EML （Electro Magnetic launcher） for long time. To simplify the analy- sis of EML, This paper builds a PFN model combining the electromagnetic processes and motor process of armature at the same time. The model includes the dynamic resistance and dynamic inductance of the rail in launch process. We analyzed single module and 6 modules of PFN simulation using the model, the simulation result and the experiment result are nearly the same. Then we use the model to compute some other factors that affects the efficiency of EML.