Title :
Isolating the Impact of PWM Modulation on Motor Iron Losses
Author :
Boglietti, A. ; Cavagnino, A. ; Knight, A.M.
Author_Institution :
Dipt. di Ing. Elettr., Politec. di Torino, Turin
Abstract :
This paper presents an investigation into the impact that PWM harmonics have on iron losses in an induction motor. In order to isolate the effect on iron losses, a special test motor is used, with a plastic rotor cage. The special motor is operated at standstill and input power is measured and allocated as stator copper loss or iron loss. Using sinusoidal and PWM supply conditions, the influence of amplitude modulation index and switching frequency are investigated.
Keywords :
harmonics; induction motors; machine testing; pulse width modulation; rotors; PWM harmonics; PWM modulation; amplitude modulation index; induction motor; motor iron losses; plastic rotor cage; Copper; Induction motors; Iron; Loss measurement; Plastics; Power measurement; Pulse width modulation; Rotors; Stators; Testing;
Conference_Titel :
Industry Applications Society Annual Meeting, 2008. IAS '08. IEEE
Conference_Location :
Edmonton, Alta.
Print_ISBN :
978-1-4244-2278-4
Electronic_ISBN :
0197-2618
DOI :
10.1109/08IAS.2008.50
