A novel six-phase inverter system with 60-step output voltages for high-power motor drives

Author

Oguchi, Kuniomi ; Kawaguchi, Akihiro ; Kubota, Tomotsugu ; Hoshi, Nobukazu

Author_Institution

Dept. of Electr. & Electron. Eng., Ibaraki Univ., Hitachi, Japan

Volume

35

Issue

5

fYear

1999

Firstpage

1141

Lastpage

1149

Abstract

A novel six-phase voltage-fed inverter system is proposed. The system consists of two main three-phase inverters, coupling reactors, and an additional single-phase inverter. The ripple voltage injected into the DC link by the additional inverter results in 60-step load voltages with the help of the coupling reactors. The main inverters operate at the same frequency as the output, and the additional inverter operates at a frequency six times higher. The advantages and disadvantages of the system are quantitatively discussed

Keywords

AC motor drives; harmonics suppression; invertors; reactors (electric); 60-step output voltages; DC link; coupling reactors; harmonic blocking reactors; high-power motor drives; ripple voltage injection; single-phase inverter; six-phase inverter system; three-phase inverters; Associate members; Couplings; Frequency; Induction motors; Inductors; Industry Applications Society; Motor drives; Pulse width modulation; Pulse width modulation inverters; Voltage;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.793376

Filename

793376