Title :
Finite element modeling of power electronic circuits containing switches attached to saturable magnetic components
Author :
Brauer, John R. ; Ruehl, Jeffrey J.
Author_Institution :
Ansoft Corp., Milwaukee, WI, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
Finite element analysis of saturable lossy magnetic components is extended to include the effects of switches, which may be either mechanical or electronic. The switches are modeled using coupled electromagnetic and structural finite elements which are stretched to vary their electrical resistance with time. Good results are shown for a simple resistive circuit with a switched excitation and for a highly saturated transformer with a secondary load resistor that is switched on and off
Keywords :
eddy current losses; finite element analysis; power electronics; power semiconductor switches; transformers; coupled electromagnetic finite elements; coupled structural finite elements; eddy currents; electronic switches; finite element analysis; finite element modeling; highly saturated transformer; losses; mechanical switches; power electronic circuits; resistive circuit; saturable lossy magnetic components; saturable magnetic components; secondary load resistor; switched excitation; switched secondary load; switched secondary output voltage; switches; Electromagnetic coupling; Electromagnetic modeling; Finite element methods; Magnetic analysis; Magnetic losses; Magnetic switching; Power electronics; Saturation magnetization; Switches; Switching circuits;
Journal_Title :
Energy Conversion, IEEE Transactions on
