A general method to calculate harmonic response of teeth in electric machine

Author

Yumin Xiao ; Ping Zhou

Author_Institution

ANSYS, Inc., Pittsburgh, PA, USA

fYear

2014

fDate

March 31 2014-April 1 2014

Firstpage

1

Lastpage

2

Abstract

The harmonic components of electromagnetic force induce structure vibration and noise in electrical machines. There are many ways to calculate the harmonic force components. A general method is proposed to calculate the harmonic force components on teeth in this paper (it is available in ANSYS Maxwell v16). The period of data collection is based on rotating speed instead of the frequency of applied source. Discrete Fourier Transform (NDFT) with non-uniform time interval is applied to deal with the data transformation. Finally the calculated harmonic force spectrums are applied to the Harmonic Response to determine the vibration of the structure. Validation and calculation results are also showed.

Keywords

discrete Fourier transforms; electric machines; harmonics; vibrations; NDFT; data transformation; electric machines; electromagnetic force; harmonic force components; harmonic response; nonuniform discrete Fourier transform; nonuniform time interval; structure vibration; NDFT; harmonic response; vibration;

fLanguage

English

Publisher

iet

Conference_Titel

Computation in Electromagnetics (CEM 2014), 9th IET International Conference on

Conference_Location

London

Electronic_ISBN

978-1-84919-817-2

Type

conf

DOI

10.1049/cp.2014.0179

Filename

6826808