Impact of PWM Schemes on Induction Motor Losses

Author

Wu, Y. ; McMahon, R.A. ; Zhan, Y. ; Knight, A.M.

Author_Institution

Dept. of Eng., Cambridge Univ.

Volume

2

fYear

2006

fDate

8-12 Oct. 2006

Firstpage

813

Lastpage

818

Abstract

This paper presents the results of an investigation into the impact of pulse width modulation (PWM) switching schemes on power losses in induction motors and their inverter drives. The PWM schemes considered include sinusoidal PWM, space-vector PWM and discontinuous PWM. Both experimental results and simulated predictions are presented for fractional horsepower and small integral horsepower motors. Direct loss measurements have been carried out using a calorimetric test rig; detailed simulations of the skewed motors have been carried out using multi-slice time-stepped 2D FEA. The simulated and measured losses under the different modulation schemes are compared and discussed

Keywords

PWM invertors; drives; finite element analysis; induction motors; loss measurement; calorimetric test rig; field element analysis; fractional horsepower motors; induction motor losses; integral horsepower motors; inverter drives; loss measurements; power losses; pulse width modulation switching; Induction machines; Induction motors; Iron; Loss measurement; Predictive models; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Space vector pulse width modulation; Voltage; Induction Machine; efficiency; inverter;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2006. 41st IAS Annual Meeting. Conference Record of the 2006 IEEE

Conference_Location

Tampa, FL

ISSN

0197-2618

Print_ISBN

1-4244-0364-2

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/IAS.2006.256619

Filename

4025305