Title :
A computative decision of pulse width in three-phase PWM inverter
Author :
Funabiki, Shigeyuki ; Sawada, Yuuichirou
Author_Institution :
Dept. Electr. & Electron. Eng., Okayama Univ., Japan
Abstract :
A novel PWM (pulsewidth modulation) technique is proposed for a three-phase sine-wave PWM inverter. The pulse width is designed to produce a sine-wave output voltage by numerical calculation based on a geometrical technique. The accuracy of output voltage and the harmonics in an output voltage waveform are discussed and compared with the results of the conventional triangulation method. A modified method is introduced for obtaining a PWM inverter with fluctuating input voltage. The validity of the method is verified in an experiment using a microprocessor-based control system.<>
Keywords :
control systems; harmonics; invertors; microcomputer applications; pulse width modulation; geometrical technique; harmonics; microprocessor-based control system; output voltage waveform; pulse width; sine-wave PWM inverter; three-phase PWM inverter; triangulation method; Control systems; Pulse inverters; Pulse width modulation inverters; Space vector pulse width modulation; Voltage fluctuations;
Conference_Titel :
Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE
Conference_Location :
Pittsburgh, PA, USA
DOI :
10.1109/IAS.1988.25138
