Title :
A single-chip microprocessor-based PWM technique for sinusoidal inverters
Author :
Fukuda, Shoji ; Iwaji, Yoshitaka
Author_Institution :
Dept. of Electr. Eng., Hokkaido Univ., Sapporo, Japan
Abstract :
A sinusoidal pulsewidth-modulation (PWM) technique suitable for single-chip-microprocessor-based control is described. The scheme can be considered as a digital alternative to the analog subharmonic method (SHM) in the sense that online real-time PWM control is possible, synchronization between carrier wave and signal wave is unnecessary, and low-order harmonics in the output voltage are well suppressed. The maximum output voltage is 15% larger than that obtained by the subharmonic modulation method at the same carrier frequency.<>
Keywords :
computerised control; invertors; microcomputer applications; pulse width modulation; SHM; analog subharmonic method; online real-time PWM control; single-chip microprocessor-based PWM technique; sinusoidal inverters; Frequency synchronization; Pulse width modulation; Space vector pulse width modulation; Voltage control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE
Conference_Location :
Pittsburgh, PA, USA
DOI :
10.1109/IAS.1988.25170
