Title :
Proximity losses computation with a 2D complex permeability modelling
Author :
Moreau, O. ; Popiel, L. ; Pages, J.L.
Author_Institution :
Electr. de France, Clamart, France
fDate :
9/1/1998 12:00:00 AM
Abstract :
Modelling high frequency overvoltages in a transformer requires a computation of R, L parameters which takes into account eddy current losses in the conductors (proximity effect). The method consists in substituting a nonconductive hysteretic material described with a complex permeability to the conductors material. Its expression is derived from the homogenisation of an analytical 1D magnetic field calculation which is afterwards implemented in a 2D finite clement electromagnetic field computation software
Keywords :
eddy current losses; electromagnetic fields; finite element analysis; magnetic hysteresis; magnetic permeability; overvoltage; power transformers; transient analysis; 1D magnetic field calculation; 2D FE EM field software; 2D complex permeability modelling; EM transient analysis; complex permeability; eddy current losses; finite element software; high frequency overvoltages modelling; nonconductive hysteretic material; proximity effect; proximity losses computation; Conducting materials; Eddy currents; Electromagnetic analysis; Frequency; Magnetic hysteresis; Magnetic materials; Permeability; Proximity effect; Soft magnetic materials; Surges;
Journal_Title :
Magnetics, IEEE Transactions on
