Enhanced transmission line model for induction motors controlled by adjustable-speed drive

Author

Jorks, H. ; Gjonaj, E. ; Weiland, Thomas

Author_Institution

Inst. fur Theor. Elektromagn. Felder, Tech. Univ. Darmstadt, Darmstadt, Germany

fYear

2014

fDate

March 31 2014-April 1 2014

Firstpage

1

Lastpage

2

Abstract

Pulse width modulation is known to cause high frequency (HF) common mode (CM) currents in speed controlled motors. In this paper, two aspects of transmission line (TL) motor modelling are discussed. Firstly, the effect of lamination is analysed with regard to the assumption of transverse electromagnetic fields. A TL model is validated against a full-wave simulation. Secondly, a frequency domain (FD) method is presented, which accounts for core saturation effects. The method is applied to a HF CM analysis of a 240 kW induction motor.

Keywords

angular velocity control; electromagnetic fields; frequency-domain analysis; induction motor drives; laminations; machine control; transmission lines; variable speed drives; FD method; HF CM analysis; TL model; adjustable-speed drive; core saturation effects; frequency domain method; full-wave simulation; high frequency common mode currents; induction motors; lamination; power 240 kW; pulse width modulation; speed controlled motors; transmission line model enhancement; transverse electromagnetic fields; finite element; induction machine; lamination; saturation; transmission line theory;

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.2014.0202

Filename

6826831