Title :
Frequency dependent model of ferromagnetic hysteresis for time domain analysis of cable shields
Author :
Grcev, Leonid ; Tasev, Zarko ; Kocarev, Ljupco
Author_Institution :
Elektrotehnicki Fak., Univ. Sv. Kiril & Metodij, Skopje, Macedonia
Abstract :
This paper describes a simple numerical technique for time-domain analysis of ferromagnetic tubular shields taking into account the effects of hysteresis. The frequency dependent Jiles model of ferromagnetic hysteresis and the finite difference technique are used to solve the field distribution inside the ferromagnetic shield in time-domain. The effects of the ferromagnetic hysteresis on the shielding properties are illustrated by several examples. The concept of dynamic permeability is discussed and comparison with more simplified modeling of ferromagnetic materials is presented
Keywords :
cable sheathing; coaxial cables; electromagnetic shielding; ferromagnetic materials; finite difference time-domain analysis; magnetic hysteresis; permeability; cable shields; coaxial cables; dynamic permeability; ferromagnetic hysteresis; ferromagnetic materials; ferromagnetic tubular shields; finite difference technique; frequency dependent Jiles model; frequency dependent model; shielding properties; time domain analysis; Boundary conditions; Cable shielding; Coaxial cables; Conducting materials; Frequency dependence; Magnetic hysteresis; Magnetic materials; Permeability; Power cables; Time domain analysis;
Conference_Titel :
Electromagnetic Compatibility, 1997. IEEE 1997 International Symposium on
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-4140-6
DOI :
10.1109/ISEMC.1997.667747
