Artcile : [ART383]

Titre : A multilevel buck converter based rectifier with sinusoidal inputs and unity power factor for medium voltage (4160-7200 V) applications

Cité dans :[REVUE391] IEEE Transactions on Power Electronics, Volume 17, Issue 6, November 2002.

Adresse : Dept. of Electr. & Comput. Eng., Ryerson Polytech. Univ., Toronto, Ont.;
Lien : private/ZHANG1.pdf - 11 pages, ko.
Source : This paper appears in: Power Electronics, IEEE Transactions on
Pages : 853 - 863
Volume : 17
Issue : 6
Date : Nov 2002
ISSN : 0885-8993
INSPEC_Accession_Number : 7497914

Abstract :
A novel rectifier topology for high power (0.5 to 10 MVA) current
source based AC motor drives is proposed. This rectifier is composed
of a multi-winding transformer, a multi-level diode rectifier and a
modified multi-level buck converter. The rectifier produces near
unity input power factor and sinusoidal input current under any
operating conditions. In addition, the proposed rectifier features
reliable operation and low manufacturing cost. In this paper, the
operating principle of the proposed rectifier is introduced. A
number of design issues are investigated, which include PWM
switching patterns, input power factor and line current harmonic
distortion. Some design considerations such as the effect of the
line inductance discrepancy on system performance are addressed.
Experiments on a 5 kVA/208V four-level prototype are carried out for
verification.

Index_Terms :
DC-DC power convertors PWM power convertors harmonic distortion
harmonics suppression power conversion harmonics power factor
correction rectifying circuits transformers 0.5 to 10 MVA
208 V 4160 to 7200 V 5 kVA AC motor drives PWM switching
patterns high power current source input power factor line
current harmonic distortion line inductance discrepancy modified
multi-level buck converter multi-level diode rectifier
multi-winding transformer multilevel buck converter based
rectifier near unity input power factor power factor control
sinusoidal input current sinusoidal inputs system performance
unity power factor

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