Title :
A voltage fed AC contactor modeling using 3D edge elements
Author :
Sadowski, N. ; Bastos, J.P.A. ; Albuquerque, A.B. ; Pinho, A.C. ; Kuo-Peng, P.
Author_Institution :
GRUCAD-EEL-CTC-UFSC, Florianopolis, Brazil
fDate :
9/1/1998 12:00:00 AM
Abstract :
The operation of voltage-fed AC contactors is simulated in this work by using a time stepping scheme. 3D edge element equations are strongly coupled to the voltage equations of the main winding, taking into account the iron nonlinearities and the currents induced in the copper short-circuited ring. To evaluate forces, a volume integral form of the Maxwell stress tensor is used. Comparison between simulated and experimental results shows good agreement
Keywords :
Maxwell equations; contactors; electromagnetic fields; electromagnetic forces; windings; 3D edge elements equations; Maxwell stress tensor; copper short-circuited ring currents; forces evaluation; iron nonlinearities; main winding; operation modelling; time stepping scheme; voltage equations; voltage-fed AC contactors; Electromagnetic forces; Iron; Joining processes; Magnetic flux; Magnetic forces; Maxwell equations; Postal services; Springs; Tensile stress; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
