Title :
Iterative hybrid finite element-boundary element method for the analysis of induction heating system with nonlinear charge
Author :
Ismail, K.S. ; Marzouk, R.A.
Author_Institution :
Coll. of Eng., Baghdad Univ., Iraq
fDate :
7/1/1996 12:00:00 AM
Abstract :
The iterative hybrid finite element-boundary element method is applied for the analysis of induction heating systems with rotational symmetry in unbounded free space. A mathematical boundary is defined arbitrarily in free space to enclose the system. The finite elements formulation is applied for the interior region and the boundary integral formulation is applied on the boundary using the response function excited by a circular line current. A quasistatic magnetic field problem is solved in terms of the magnetic vector potential. A ferromagnetic charge of nonlinear magnetic properties is considered. An iterative technique is used to correct the permeability values and the effect of nonlinearity is calculated. The accuracy of the method is verified with measurements of practical induction heating systems
Keywords :
boundary-elements methods; finite element analysis; induction heating; iterative methods; magnetic fields; magnetic permeability; boundary integral formulation; circular line current; ferromagnetic charge; induction heating system; iterative hybrid finite element-boundary element method; magnetic vector potential; nonlinear charge; nonlinear magnetic properties; permeability values; quasistatic magnetic field problem; response function; rotational symmetry; unbounded free space; Coils; Electromagnetic fields; Finite element methods; Heating; Integral equations; Iterative methods; Magnetic analysis; Magnetic flux; Permeability; Vectors;
Journal_Title :
Magnetics, IEEE Transactions on
