Abstract
A time-domain hybrid method is presented for efficiently solving the coupling problems of long cables above the ground excited by electromagnetic pulses. The proposed method is combined with transmission-line (TL) equations, finite-difference time-domain (FDTD) method, and a novel fast calculation approach for excitation fields of long cables. In this hybrid method, the effect of the ground on the incident wave is equivalent to a time-domain reflection wave source, and the excitation fields of long cables are computed by the superposition of electric fields created by the incident and reflection wave sources. Then, the TL equations are employed to build the coupling model of long cables and the excitation fields are introduced into the TL equations as distribution sources. Finally, the transient responses on long cables are obtained by the TL equations with the FDTD method. Two examples are given to demonstrate the accuracy and high efficiency of this method. It shows that this method can tremendously decrease the memory requirement and computation time compared with the FDTD method, and has the ability of fast simulating the coupling problem of long cables excited by multiple pulse sources.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Electromagnetic Compatibility
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
