DocumentCode
3334980
Title
Transient effects in application of PWM inverters to induction motors
Author
Persson, Erik
Author_Institution
H.A. Simons Ltd., Vancouver, BC, Canada
fYear
1991
fDate
3-7 June 1991
Firstpage
228
Lastpage
233
Abstract
Standard squirrel cage induction motors are subjected to nonsinusoidal wave shapes, when supplied from adjustable frequency inverters. In addition to causing increased heating, these wave patterns can be destructive to the insulation. Pulse width modulated (PWM) inverter output amplitudes and risetimes are investigated, and motor insulation capabilities are discussed. Voltage reflections are simulated for various cable lengths and risetimes and are presented graphically. Simulations confirm potential problems with long cables and short risetimes. Application precautions are also discussed.<>
Keywords
induction motors; invertors; machine insulation; pulse width modulation; transients; PWM inverter; PWM inverters; adjustable frequency inverters; heating; induction motors; motor insulation; nonsinusoidal wave shapes; transient effects; voltage reflections; Amplitude modulation; Frequency; Heating; Induction motors; Insulation; Pulse inverters; Pulse width modulation inverters; Reflection; Shape; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Pulp and Paper Industry Technical Conference, 1991., Conference Record of 1991 Annual
Conference_Location
Montreal, Quebec, Canada
Type
conf
DOI
10.1109/PAPCON.1991.239644
Filename
239644
Link To Document