Title :
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
fDate :
March 31 2014-April 1 2014
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;
Conference_Titel :
Computation in Electromagnetics (CEM 2014), 9th IET International Conference on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-817-2
DOI :
10.1049/cp.2014.0202
