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Pekik Argo Dahono
School of Electrical Engineering and Informatics, Institute of Technology Bandung, Jl. Ganesa No. 10, Bandung 40132, Indonesia Tel. 62-22-2503315, Fax. 62-22-2508132
Engineering

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Analysis and Minimization of Output Current Ripple of Multiphase Carrier-Based PWM Inverters Pekik Argo Dahono
Journal of Engineering and Technological Sciences Vol. 42 No. 1 (2010)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.eng.sci.2010.42.1.4

Abstract

Analysis  and  minimization  of  output  current  ripple  of  multiphase carrier-based PWM  inverters are presented in this paper.  Analytical expression of rms value of output current ripple of multiphase PWM inverters as a function of the reference signal is first derived. Based on this expression, it is shown that a pure sinusoidal signal is the optimum reference signal that results in minimum output  current  ripple.  Different  to  three-phase  PWM  inverters,  injection  of harmonics  into  the  sinusoidal  reference  signal  is  neither  necessary  nor  useful. The  rms  values  of  output  current  ripple  of  5-,  7-,  and  9-phase  PWM  inverters under various reference signals are compared. Experimental results are included to show the validity of the analysis method.
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