A 20 kW, 20 kHz unity power factor boost converter for three-phase motor drive applications from an unregulated single-phase supply
IEEE TRANSACTIONS ON ENERGY CONVERSION, no.3, pp.471-478, 1999 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Publication Date: 1999
- Doi Number: 10.1109/60.790899
- Journal Name: IEEE TRANSACTIONS ON ENERGY CONVERSION
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.471-478
- Hacettepe University Affiliated: Yes
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 pf at the ac supply side, low harmonic content line currents, 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.