Improvement in Computational Accuracy and Convergence Characteristics by Combined Application of Various Infinite Edge Element Configurations

Author

Shimoyama, Ryunosuke ; Tsukamoto, Emi ; Wakao, Shinji ; Kameari, Akihisa

Author_Institution

Dept. of Electr. Eng. & Biosci., Waseda Univ., Tokyo, Japan

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

The infinite edge element method (IEEM) has been proposed as an effective method for efficiently handling open boundary region, i.e., the air region. In this paper, we present a newly defined infinite element radiated from a reference plane (RPL), and propose the combination method using various infinite element configurations, such as radiated configurations from a reference point, a reference line, and an RPL. By using the proposed hybrid method, we can drastically decrease the number of ill-shaped infinite elements and improve the computational accuracy and convergence characteristics in comparison with the conventional IEEM, especially in the case of flattened analysis models.

Keywords

convergence; electromagnetic fields; finite element analysis; IEEM; RPL; air region; combination method; computational accuracy; convergence characteristic; electromagnetic field computation; flattened analysis model; hybrid method; infinite edge element configuration; open boundary region; radiated configuration; reference plane; Accuracy; Analytical models; Computational modeling; Convergence; Finite element analysis; Inverters; Iron; Finite element (FE) analysis; infinite edge element (IEE); open boundary; orthogonal expansion function; reference plane (RPL);

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2349555

Filename

7093574