A novel three-phase AC/DC converter without front-end filter based on adjustable triangular-wave PWM technique

Submitted by OEST on May 10, 2015 - 5:28pm

Title	A novel three-phase AC/DC converter without front-end filter based on adjustable triangular-wave PWM technique
Publication Type	Miscellaneous
Year of Publication	1999
Authors	Yanchao J, Mingwei S
ISBN Number	0885-8993 VO - 14
Keywords	AC-DC power convertors, adjustable triangular-wave PWM, Bridge circuits, Choppers, DC-DC power converters, Diodes, feedback, Feedback control, harmonics elimination, harmonics suppression, higher reliability, input AC filter size reduction, output DC filter size reduction, output waveform, power conversion harmonics, Power harmonic filters, Pulse width modulation, Pulse width modulation converters, PWM power convertors, Rectifiers, three-phase AC/DC converter, Topology, Voltage
Abstract	This paper proposes a novel three-phase AC/DC converter without a front-end filter. Because an adjustable triangular-wave pulsewidth modulation (PWM) (ATPWM) technique is adopted, not only is a front-end filter located after the three-phase rectifier is omitted, but also the size of the input AC filter and the output DC filter are reduced. In addition, this AC/DC converter has many advantages such as simpler structure, higher reliability, and better output waveform. The principle of operation, harmonics elimination, and feedback control of the novel AC/DC topology are elaborated. A thorough analysis on its performance under an unbalanced system is presented. Finally, the theoretical analysis is proved to be correct by simulations and experiments
DOI	10.1109/63.750176