Journal of Xidian University ›› 2021, Vol. 48 ›› Issue (4): 42-49.doi: 10.19665/j.issn1001-2400.2021.04.006

• Information and Communications Engineering & Electronic Science and Technology • Previous Articles     Next Articles

Simulation methods for inductive pulsed current injection on the coaxial cable

CUI Zhitong1(),WEI Bing2(),WU Wei1(),SUN Beiyun1()   

  1. 1. State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology,Xi’an 710024,China
    2. School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China
  • Received:2020-06-22 Online:2021-08-30 Published:2021-08-31

Abstract:

This paper aims at a quantitative analysis and the design of the inductive PCI (Pulsed Current Injection)on coaxial cables.First the induced current on the cable shield is derived by Spice circuit modeling.And the reasonable measurement method and coupling equations between the shield and inner conductor are proposed under the specific boundary conditions decided by the PCI.Then a Spice+Matlab simulation method for the inductive PCI on coaxial cables is developed.Furthermore,the negative inductor and the fitting circuit model of transfer impedance are expressed in Spice based on the principle of circuit equivalent response.Then the lumped approximate model of the coupling circuit between the shield and inner conductor is developed by subdividing the cable into several electrical small subsections.Finally a complete Spice model for the PCI on coaxial cables is constructed.By numerical and experimental validation,the two aforesaid methods have an appreciable agreement and show a high simulation precision and convergence in the time domain.Both of them will be very helpful to analysis and design of the PCI on coaxial cables.

Key words: intense transient electromagnetic pulse, conducted test method, pulsed current injection, transfer impedance, Spice modeling

CLC Number: 

  • TM13