Network-Friendly Low-Switching-Frequency Multipulse High-Power Three-Level PWM Rectifier

Pontt, JA; Rodríguez JR; Liendo, A; Newman P.; Holtz J.; San Martin, JM

Abstract

High-power converters for regenerative drives and distributed generation need a network-friendly operation, low harmonic conductive electromagnetic emission for low electromagnetic interference and high electromagnetic compatibility reaching high reliability and performance. Nevertheless, the converters must be controlled with low switching frequency in order to reduce the commutation losses. These two requirements can be satisfied if an optimal modulation strategy is used. The selective harmonic elimination (SHE) is one of the low-switching-frequency strategies most used today. However, this strategy only eliminates a reduced set of harmonic components from the input current. This paper presents a novel optimal modulation strategy whose objective is to reduce the total harmonic distortion of the input current. Six- and twelve-pulse three-level neutral-pointclamped pulsewidth modulation rectifiers are used in order to implement both modulation techniques. The results confirm the advantages of the proposed strategy, namely, less input current distortion and remarkable reduction of higher order harmonics compared with the SHE method, while keeping a low-switching behavior. © 2009 IEEE.

Más información

Título según WOS: Network-Friendly Low-Switching-Frequency Multipulse High-Power Three-Level PWM Rectifier
Título según SCOPUS: Network-friendly low-switching-frequency multipulse high-power three-level PWM rectifier
Título de la Revista: IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volumen: 56
Número: 4
Editorial: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Fecha de publicación: 2009
Página de inicio: 1254
Página final: 1262
Idioma: English
URL: http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4663840
DOI:

10.1109/TIE.2008.2007998

Notas: ISI, SCOPUS