The high frequency properties of coaxial power cables are modeled using time- and frequency-domain numerical simulations. This is required due to the complex helical structure of the outer metallic screen. The finite element (FEM) and finite difference time domain methods (FDTD) have been employed to study the effect of screen spiralization. It is established that this screen design causes a dependence of the cable high frequency characteristics on the surrounding medium. Analytical model based on modal analysis of wave propagation in coaxial cables confirms the numerical observations.
R. Papazyan et al., "Wave Propagation on Power Cables with Special Regard to Metallic Screen Design," IEEE Transactions on Dielectrics and Electrical Insulation, Institute of Electrical and Electronics Engineers (IEEE), Jan 2007.
The definitive version is available at http://dx.doi.org/10.1109/TDEI.2007.344621
Electrical and Computer Engineering
Keywords and Phrases
FDTD Methods; Attenuation Measurement; Coaxial Transmission Lines; Electromagnetic Coupling; Finite Element Methods; Helices; Power Cable Shielding; Velocity Measurement
Article - Journal
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