Magnetic field analysis in condenser motor considering skewed slot effects

Author

Matsubara, Takashi ; Ishihara, Yoshiyuki ; Kitamura, Shingo ; Inoue, Yoshiaki ; Takahashi, Norio

Author_Institution

Yonago Nat. Coll. of Tech., Japan

Volume

33

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

1698

Lastpage

1701

Abstract

This paper describes a useful method to analyze the nonlinear magnetic fields in a condenser motor considering skewed slot effects by 2-D FEM coupled problems. In this method, the exciting circuit equations, the rotor circuit equations including the currents in the end ring and the magnetic field equations are solved simultaneously. Therefore the input currents, the rotor bar currents and the currents in the end ring are obtained directly. Moreover this method is developed to consider the skewed slot effects by modifying the rotor circuits. The validity of this method is shown by comparison between the computed results and measured ones

Keywords

capacitor motors; finite element analysis; machine theory; magnetic fields; rotors; 2-D FEM coupled problems; condenser motor; end ring currents; exciting circuit equations; input currents; magnetic field analysis; magnetic field equations; nonlinear magnetic fields; rotor bar currents; rotor circuit equations; skewed slot effects; Conductors; Coupling circuits; Current density; Machine windings; Magnetic analysis; Magnetic circuits; Magnetic field measurement; Magnetic fields; Nonlinear equations; Rotors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.582599

Filename

582599