Abstract
The impedance of the rail track is one of basic parameters to analyze the high-speed railway signal circuit. In this paper, an accurate and fast approach to calculate the impedance of the rail track with the earth return is presented. Two imagined current-carrying sheaths going in opposite directions are placed to encase the rail track. With these imaginary currents, the impedance can actually be divided into imagined internal and external impedance, respectively. The imagined internal impedance can be calculated using the finite-element method without numerical difficulties, and the imagined external one can be evaluated using the analytical formula with the help of the asymptotic extraction technique. The numerical examples validate that the proposed approach and show the proposed approach has a satisfactory accuracy and reasonable computation time.
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 callDisclaimer: 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.
