Title :
Three-dimensional nonlinear finite element modeling of a voltage source excited transformer feeding a rectifier load
Author :
Arkadan, Abd A. ; VanderHeiden, Roy H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Marquette Univ., Milwaukee, WI, USA
fDate :
9/1/1992 12:00:00 AM
Abstract :
An attempt is made to use the electromagnetic finite-element analysis program EMAS to model magnetic nonlinearities and the effects of switching circuits in a coupled system. A novel approach to model the coupling (loading effects) in transformers feeding switching loads is presented. In this approach, transfer functions and nonlinear V-I relationships are used to model a voltage-source-excited three-dimensional transformer model. Three load cases of the transformer model are considered: no load, linear load, and rectifier load. The results obtained from the three load cases demonstrate that coupling (loading) effects are accounted for in the modeling approach
Keywords :
finite element analysis; load (electric); magnetostatics; power engineering computing; power transformers; transfer functions; 3D nonlinear FEM model; EMAS; electromagnetic finite-element analysis; model magnetic nonlinearities; nonlinear V-I relationships; rectifier load; switching circuits; switching loads; transfer functions; transformer model; voltage source excited transformer; Coupled mode analysis; Coupling circuits; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic modeling; Finite element methods; Magnetic analysis; Switching circuits; Transformers; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
