High-order frequency sensitivity for nonsinusoidal steady state analysis in linear magnetodynamics

Author

Park, II-Han ; Choi, Myung-jun ; Lee, Se-hee

Author_Institution

Sch. of Electr. & Comput. Eng., Sungkyunkwan Univ., Kyunggi, South Korea

Volume

34

Issue

5

fYear

1998

fDate

9/1/1998 12:00:00 AM

Firstpage

2555

Lastpage

2558

Abstract

A number of electromagnetic devices periodically driven by solid-state switches have been analyzed with time-stepping finite element method, which requires much time to reach a steady state. The sensitivity analysis which have been used for the shape design is employed for an efficient analysis of linear magnetodynamics with nonsinusoidal driving sources. The high-order frequency sensitivity from the time-harmonic finite element formulation is used along with Fourier transform and Taylor series expansion. The algorithm is validated through two numerical examples of a single-phase transformer and an induction heating system driven by a trapezoidal voltage source

Keywords

Fourier transforms; electromagnetic devices; finite element analysis; induction heating; power transformers; sensitivity analysis; Fourier transform; Taylor series; electromagnetic device; high-order frequency sensitivity; induction heating system; linear magnetodynamics; nonsinusoidal steady state analysis; numerical algorithm; shape design; single-phase transformer; solid-state switch; time-harmonic finite element method; voltage source; Electromagnetic analysis; Electromagnetic devices; Finite element methods; Frequency; Magnetic analysis; Sensitivity analysis; Shape; Solid state circuits; Steady-state; Switches;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717589

Filename

717589