Title :
Finite element prediction of losses and temperatures of laminated and composite inductors for AC drives
Author :
Skibinski, Gary L. ; Schram, Bruce G. ; Brauer, John R. ; Badics, Zsolt
Author_Institution :
Rockwell Autom., Mequon, WI, USA
Abstract :
Finite elements are used to predict losses and temperatures of two different inductors used in AC drives. One inductor has a core made of thin steel laminations, while the other is made with a new soft magnetic composite core material. First, electromagnetic finite element software is used to compute parameters including inductance, core loss, copper loss, and power loss for various current amplitudes and frequencies ranging from 1 Hz to 200 kHz. The core losses are computed using lamination loss and Steinmetz formulas. Finally, thermal finite element software is used to compute typical temperature distributions, which are found to agree reasonably well with measurements on both inductors.
Keywords :
AC motor drives; electric machine analysis computing; finite element analysis; inductance; inductors; laminations; losses; machine theory; magnetic cores; 1 Hz to 200 kHz; AC drives; Steinmetz formula; composite inductors; copper loss; core loss; finite elements; inductance; laminated inductors; losses prediction; power loss; soft magnetic composite core material; temperatures prediction; thermal finite element software; thin steel laminations; Building materials; Core loss; Finite element methods; Inductors; Lamination; Magnetic cores; Magnetic materials; Soft magnetic materials; Steel; Temperature;
Conference_Titel :
Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International
Print_ISBN :
0-7803-7817-2
DOI :
10.1109/IEMDC.2003.1210321
