Title :
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
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;
Journal_Title :
Industry Applications, IEEE Transactions on
