Higher harmonics calculation of synchronous generators on the basis of magnetic field analysis considering rotor movement

Author

Ide, K. ; Takahashi, M. ; Sato, M. ; Tsuji, E. ; Nishizawa, H.

Author_Institution

Hitachi Ltd., Ibaraki, Japan

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1359

Lastpage

1362

Abstract

A simple analysis method is proposed for output voltage waveforms and magnetic flux waveforms passing through the main stator parts of synchronous generators. The method considers the rotor movement in order to analyze the higher harmonic sequences and some techniques for simplifying the calculation using the symmetry of armature windings and stator slot arrangements. The effectiveness of the higher harmonics analysis method under saturated conditions, is verified by 50-MV A-class generator analysis. It is useful for quantitative evaluation of the voltage and magnetic flux waveforms and no-load saturation characteristics of synchronous generators

Keywords

electromagnetic field theory; finite element analysis; harmonic analysis; machine theory; magnetic flux; rotors; synchronous generators; 2D FEM; 50 MV; A-class generator; higher harmonic sequences; magnetic field analysis; magnetic flux waveforms; no-load saturation characteristics; output voltage waveforms; rotor movement; stator slot arrangements; symmetry of armature windings; synchronous generators; Harmonic analysis; Iron; Magnetic analysis; Magnetic cores; Magnetic fields; Magnetic flux; Rotors; Stator cores; Synchronous generators; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123944

Filename

123944