Title :
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
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;
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
DOI :
10.1109/SPEEDHAM.2008.4581172
