A finite element approach to harmonic core loss prediction in VSI-fed induction motor drives

Author

Tessarolo, Alberto ; Luise, Fabio

Author_Institution

Electr. Eng. & Comput. Sci. Dept., Univ. of Trieste, Trieste

fYear

2008

fDate

11-13 June 2008

Firstpage

1309

Lastpage

1314

Abstract

When an induction motor is supplied by a PWM voltage source inverter (VSI), flux pulsations due to voltage harmonics cause extra power dissipation for hysteresis and eddy-currents in the magnetic core. Based on the expected inverter output voltage spectrum, a finite element analysis method is discussed in this paper to predict supply-related additional core losses. The finite element motor model is tuned based on available ring-test data. Calculation results are compared to the measurements collected during a real motor drive testing.

Keywords

PWM invertors; eddy current losses; finite element analysis; induction motor drives; machine theory; magnetic cores; magnetic flux; magnetic hysteresis; power conversion harmonics; PWM voltage source inverter; VSI-fed induction motor drives; eddy currents; finite element motor model; flux pulsations; harmonic core loss prediction; magnetic core; magnetic hysteresis; power dissipation; ring-test data; voltage harmonics; Core loss; Finite element methods; Induction motor drives; Induction motors; Magnetic cores; Magnetic hysteresis; Power dissipation; Power system harmonics; Pulse width modulation inverters; Voltage; Core losses; PWM inverters; induction motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Electrical Drives, Automation and Motion, 2008. SPEEDAM 2008. International Symposium on

Conference_Location

Ischia

Print_ISBN

978-1-4244-1663-9

Electronic_ISBN

978-1-4244-1664-6

Type

conf

DOI

10.1109/SPEEDHAM.2008.4581172

Filename

4581172