DocumentCode
3265509
Title
A simple and accurate method of computing average and RMS currents in a three-phase PWM inverter
Author
Thurston, Robert C. ; Legowski, Stanislaw F.
Author_Institution
Dept. of Electr. Eng., Wyoming Univ., Laramie, WY, USA
fYear
1992
fDate
23-27 Feb 1992
Firstpage
606
Lastpage
613
Abstract
The design of three-phase pulse-width-modulated (PWM) inverters requires values for the average and RMS currents in the inverter in order to select the right components. A computer-aided investigation of approximate inverter current waveforms indicates that the average and RMS inverter currents are simple functions of a single factor equal to the product of the power factor and the modulation index. These functions have been expressed as per-unit equations that are useful not only for designing new inverters, but also for evaluating existing designs
Keywords
invertors; pulse width modulation; RMS currents; average currents; current waveforms; three-phase PWM inverter; Bridge circuits; Frequency; Insulated gate bipolar transistors; Leg; MOSFETs; Power semiconductor switches; Pulse width modulation; Pulse width modulation inverters; Variable speed drives; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition, 1992. APEC '92. Conference Proceedings 1992., Seventh Annual
Conference_Location
Boston, MA
Print_ISBN
0-7803-0485-3
Type
conf
DOI
10.1109/APEC.1992.228355
Filename
228355
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