Title :
New single-phase unity power factor PWM converter-inverter system
Author :
Morimoto, Masayuki ; Oshitani, Katsumi ; Sumito, Kiyotaka ; Sato, Shinji ; Ishida, Muneaki ; Okuma, Shigeru
Author_Institution :
Mitsubishi Heavy Ind. Ltd., Tokyo, Japan
Abstract :
A single-phase, unity power factor converter-inverter is presented for an induction motor drive. The converter circuit, which delivers sinusoidal input current, regulates DC voltage. The inverter, which uses the magnetic flux control PWM (pulse-width-modulation) method, generates a variable-voltage, variable-frequency PWM waveform in order to minimize the output voltage distortion factor. The experimental result shows that the motor efficiency is as high as that of the sinusoidal output voltage. As a result, the system efficiency and the power factor are improved
Keywords :
electric drives; induction motors; invertors; power convertors; pulse width modulation; DC voltage regulation; PWM converter-inverter system; induction motor drive; motor efficiency; output voltage distortion factor; power factor; single-phase; sinusoidal input current; unity power factor; variable-frequency; variable-voltage; Circuits; Induction motor drives; Magnetic flux; Magnetic variables control; Pulse inverters; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Voltage control;
Conference_Titel :
Power Electronics Specialists Conference, 1989. PESC '89 Record., 20th Annual IEEE
Conference_Location :
Milwaukee, WI
DOI :
10.1109/PESC.1989.48538
