Title :
Space Vector Modulation for High-Power Three-Level NPC Rectifiers Without Even Order Harmonics
Author :
Feng, D. ; Wu, B. ; Liu, C. ; Xu, D. ; Cheung, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, Ont.
Abstract :
Space vector modulation (SVM) is a preferred PWM scheme for multilevel converters mainly due to its flexibility, easy digital implementation and good harmonic profile. However, the conventional SVM scheme normally produces even-order voltage/current harmonics at the rectifier inputs. The even-order harmonic currents are strictly regulated by the harmonic guidelines such as the IEEE Standards 519-1992 in North America. In this paper, the mechanism of even-order harmonic generation is analyzed, and a new SVM scheme that has the ability to eliminate these harmonics is proposed for three-level neutral point clamped (NPC) rectifiers. The harmonic profile of both schemes is investigated by computer simulation. The effectiveness of the proposed scheme is experimentally verified
Keywords :
IEEE standards; PWM power convertors; harmonics suppression; rectifying circuits; IEEE Standards 519-1992; North America; PWM scheme; SVM; even-order current harmonics; even-order harmonic generation; even-order voltage harmonics; harmonic guidelines; harmonics elimination; high-power three-level NPC rectifiers; multilevel converters; rectifier inputs; space vector modulation; three-level neutral point clamped rectifiers; Digital modulation; Frequency conversion; Guidelines; Harmonic analysis; North America; Pulse width modulation converters; Rectifiers; Space vector pulse width modulation; Support vector machines; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2005. PESC '05. IEEE 36th
Conference_Location :
Recife
Print_ISBN :
0-7803-9033-4
DOI :
10.1109/PESC.2005.1581904
