Title :
A novel six-phase inverter system with sixty-step output voltages for high-power motor drives
Author :
Oguchi, K. ; Kawaguchi, A. ; Kubota, T. ; Hoshi, N.
Author_Institution :
Fac. of 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 :
induction motor drives; invertors; reactors (electric); DC link; coupling reactors; high-power motor drives; induction motor drives; output voltage waveforms; ripple voltage injection; single-phase inverter; six-phase inverter system; sixty-step output voltages; three-phase inverters; waveform shaping; Associate members; Couplings; Induction motors; Inductors; Motor drives; Power electronics; Pulse width modulation; Pulse width modulation inverters; Switching frequency; Voltage;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.730327
