Static State Analysis on Load Electromagnetism Parameters for Pulsed Forming Network

In the electromagnetic emission system,the rail and the armature are the load of pulsed forming network,their electromagnetic parameters are the important reasons to affect the efficiency of the electromagnetic emission.In these parameters,the inductance gradient and the resistance gradient are the two important parameters.The finite element method was used to analyze electromagnetic phenomena when the frequency of excitation current was changing,such as skin effect,inductance effects etc.The relationship between the electromagnetic parameters and the excitation frequency were acquired,and the results were compared with the empirical formula.The results showed that improving the smooth degree of excitation current can effectively increase the inductance gradient and reduce the resistance gradient.Selecting appropriate rail size can effectively improve the inductance gradient so as to increase electromagnetic emission efficiency.