Title :
On the use of the magnetic vector potential for the nonlinear numerical computation of space dependent reactances of a switched reluctance machine
Author :
Grabner, Christian ; Schmidt, Erich
Author_Institution :
Inst. of Electr. Machines & Drives, Graz Univ. of Technol., Austria
Abstract :
An efficient finite element analysis of an electrical switched reluctance machine considering various angular rotor positions is proposed. The finite element model is divided into distinct stator and rotor parts. The utilization of floating potentials on the sliding surface between the independent parts allows for the modeling of fully arbitrary rotor positions without any remeshing even with periodic boundary conditions. 2D and 3D nonlinear numerical field calculations are carried out for the total electromagnetic flux. Subsequently, the position dependent reactances are obtained from a numerical implementation of the nonlinear magnetic energy.
Keywords :
finite element analysis; magnetic flux; reluctance machines; rotors; stators; angular rotor; arbitrary rotor positions; distinct stator; electromagnetic flux; finite element analysis; floating potentials utilization; magnetic vector potential; nonlinear magnetic energy; nonlinear numerical computation; numerical field calculations; sliding surface; space dependent reactances; switched reluctance machine; Boundary conditions; Electromagnetic fields; Electromagnetic modeling; Finite element methods; Magnetic analysis; Magnetic flux; Magnetic switching; Nonlinear magnetics; Reluctance machines; Stators;
Conference_Titel :
Electrical and Computer Engineering, 2003. IEEE CCECE 2003. Canadian Conference on
Print_ISBN :
0-7803-7781-8
DOI :
10.1109/CCECE.2003.1226441
