Abstract
In the IGBT PWM inverter, insulation breakdown and irregular voltage distribution on stator winding due to high rate of voltage rise (dv/dt) caused by high-frequency switching and impedance mismatches between inverter and motor have been treated as the main consideration. This paper describes the distribution characteristics of switching the surge voltage in the stator windings of an induction motor driven by IGBT PWM inverter. To analyze the voltage distribution between turns and coils of the stator winding, an equivalent circuit model of the induction motor including feeder cable is proposed and high frequency parameters are computed by finite-element analysis. From the electro-magnetic transient program (EMTP) simulation of the entire system, which consists of induction motor, feeder cable, and PWM inverter, the effects of rising time of the inverter output voltage, cable length, and switching frequency on the voltage distribution are also presented. A 380 V, 50 HP three phase induction motor with taps from the first through fifth turns has been built in order to experimentally measure the turn voltage and it provides informative experimental results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
