Multicarrier PWM with DC-link ripple feedforward compensation for multilevel inverters

Kouro S.; Lezana, P; Angulo M.; Rodriguez J.

Abstract

Like most power converter topologies, multilevel inverters are controlled with modulation techniques that are conceptually based on nonlinear waveform synthesis assuming constant dc-link voltages. However, real applications have load and supply dependent dc-links that usually present important low frequency ripple, which is also modulated and transmitted to the load, generating undesirable low frequency voltage and current distortion. This paper introduces a simple but effective dc-link ripple feedforward strategy into traditional carrier-based modulation techniques. The dc-link ripples are measured and used to modify the carriers or the reference directly in the modulation stage. Simulation and experimental results show the accuracy of the proposed method, eliminating low order harmonics in the load current. © 2007 IEEE.

Más información

Título según WOS: Multicarrier PWM with DC-link ripple feedforward compensation for multilevel inverters
Título según SCOPUS: Multicarrier PWM with DC-link ripple feedforward compensation for multilevel inverters
Título de la Revista: IEEE TRANSACTIONS ON POWER ELECTRONICS
Volumen: 23
Número: 1
Editorial: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Fecha de publicación: 2008
Página de inicio: 52
Página final: 59
Idioma: English
URL: http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=4400129
DOI:

10.1109/TPEL.2007.911834

Notas: ISI, SCOPUS