Title :
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
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;
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
DOI :
10.1109/SPEEDAM.2010.5544811
