Title :
Modeling of converter-fed motor drives for analyzing motor transients
Author :
Thorsen, O.V. ; Dalva, M.
Author_Institution :
Bergen Univ. Coll., Norway
Abstract :
The present work investigates how the components in a complex system of frequency converter, transformer, cable and motor can be modeled. Different models for the components of the system have been evaluated in order to find the best ones for analyzing the voltage stresses in a motor supplied by a PWM frequency converter. The aim is to dimension the individual components to optimize the whole system. The work is based on frequency domain analysis to detect critical harmonic frequencies, and transient- and steady-state analysis in the time domain. The developed models are valid for systems with long- as well as for shorter cable lengths, and for both VSI and CSI converters.
Keywords :
AC motor drives; AC-DC power convertors; DC-AC power convertors; PWM invertors; PWM power convertors; electric machine analysis computing; frequency convertors; frequency-domain analysis; machine theory; power system transients; rectifying circuits; time-domain analysis; transient analysis; AC-AC power conversion; CSI; PWM frequency converter; VSI; components dimensioning; critical harmonic frequencies detection; frequency domain analysis; motor transients analysis; power cable; power converter-fed AC motor drives; power transformer; time domain steady-state analysis; time domain transient analysis; voltage stresses; Frequency conversion; Frequency domain analysis; Harmonic analysis; Motor drives; Pulse width modulation; Pulse width modulation converters; Steady-state; Stress; Time domain analysis; Transient analysis;
Conference_Titel :
Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-7114-3
DOI :
10.1109/IAS.2001.955629
