Title :
Generalization of coupled circuit-field calculation for polyphase structures
Author :
Oliveira, A.M. ; Kuo-Peng, P. ; Da Luz, M. V Ferreira ; Sadowski, N. ; Bastos, J.P.A.
Author_Institution :
GRUCAD, Univ. Federal de Santa Catarina, Florianapolis, Brazil
fDate :
9/1/2001 12:00:00 AM
Abstract :
A method allowing generalization of coupled circuit-field calculation for polyphase electromagnetic devices is presented. Finite element method is used to model electromagnetic devices in 2D and the static converter circuit is studied in the state space. State-variable and field equations are then coupled together and solved simultaneously, step by step in time. An application with a three-phase half-wave rectifier fed by a three-phase transformer is presented. An iron losses calculation based on the separation model, in which the iron loss is composed by hysteresis, eddy current and excess loss components is also presented
Keywords :
eddy currents; electromagnetic devices; finite element analysis; magnetic leakage; power convertors; power transformers; solid-state rectifiers; state-space methods; coupled circuit-field calculation; eddy current; electromagnetic devices; excess loss components; finite element method; hysteresis; iron losses calculation; polyphase structures; separation model; state space; state-variable equations; static converter circuit; three-phase half-wave rectifier; three-phase transformer; Coupling circuits; Electromagnetic coupling; Electromagnetic devices; Electromagnetic modeling; Equations; Finite element methods; Iron; Phase transformers; Rectifiers; State-space methods;
Journal_Title :
Magnetics, IEEE Transactions on
