Modeling the effect of inverter supply on eddy-current losses in synchronous machines

Author

Rasilo, Paavo ; Arkkio, Antero

Author_Institution

Dept. of Electr. Eng., Aalto Univ., Aalto, Finland

fYear

2010

fDate

14-16 June 2010

Firstpage

861

Lastpage

865

Abstract

The effect of inverter supply on the eddy-current losses in the laminated core of a synchronous machine is studied. A 2D finite element model including a dynamic model for the eddy currents in the core laminations is applied to predict the machine losses by numerical simulations. A synchronous extruder motor is simulated both with sinusoidal and pulse-width modulated voltage supplies in different operating points and the eddy-current losses both in the stator and the rotor are studied. The rotor additional inverter losses are found to be load-dependent while the stator additional losses remain constant independent of the loading.

Keywords

PWM invertors; cores; eddy current losses; eddy currents; laminations; rotors; stators; synchronous motors; 2D finite element model; eddy-current losses; inverter supply; laminated core; pulse-width modulated voltage supply; rotor; sinusoidal modulated voltage supply; stator; synchronous extruder motor; Eddy currents; Finite element methods; Lamination; Numerical simulation; Predictive models; Pulse width modulation inverters; Rotors; Stator cores; Synchronous machines; Synchronous motors; Eddy currents; finite element methods; pulse width modulated inverters; synchronous machines;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Electrical Drives Automation and Motion (SPEEDAM), 2010 International Symposium on

Conference_Location

Pisa

Print_ISBN

978-1-4244-4986-6

Electronic_ISBN

978-1-4244-7919-1

Type

conf

DOI

10.1109/SPEEDAM.2010.5544811

Filename

5544811