A 20 kW, 20 kHz unity power factor boost converter for three-phase motor drive applications from an unregulated single-phase supply

Author

ÇADIRCI, I. ; Varma, S. ; Ermis, M. ; Gulsoy, T.

Author_Institution

Res. Inst., Tubitak Inf. Technol. & Electron., Ankara, Turkey

Volume

14

Issue

3

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

471

Lastpage

478

Abstract

A three-phase, medium-power standard AC motor can be operated from a single-phase, highly-distorted and unregulated AC source by the use of a diode bridge rectifier/boost chopper/inverter cascade. The integration of a boost chopper unit employing an inductor made of amorphous metal (Metglas) into the system results in unity power factor at the AC supply side, low harmonic content line currents and high efficiencies and power densities. Laboratory and field test results have shown that this system constitutes a reliable, cost-competitive and almost maintenance-free alternative to other drive options, especially for auxiliary systems in electric locomotives where squirrel-cage induction motors are chosen as auxiliary driving machines

Keywords

AC motor drives; DC-DC power convertors; bridge circuits; choppers (circuits); harmonic distortion; power conversion harmonics; power factor correction; power inductors; power supplies to apparatus; 20 kHz; 20 kW; Metglas inductor; applications; auxiliary driving machines; diode bridge rectifier/boost chopper/inverter cascade; efficiency; electric locomotives; line current harmonics; power density; squirrel-cage induction motors; three-phase motor drive; unity power factor boost converter; unregulated single-phase supply; AC motors; Amorphous magnetic materials; Amorphous materials; Bridges; Choppers; Diodes; Inductors; Inverters; Reactive power; Rectifiers;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.790899

Filename

790899