Phase-shifted pulse-width-amplitude modulation for quasi-Z-source cascade multilevel inverter-based photovoltaic power system

Yushan Liu, Baoming Ge, Haitham Abu-Rub, Fang Zheng Peng

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

A phase-shifted pulse-width-amplitude modulation (PS-PWAM) is proposed for a quasi-Z-source cascade multilevel inverter (qZS-CMI)-based photovoltaic power system. The switching actions of each power device of the qZS-CMI in the PS-PWAM technique are greatly reduced when compared with that in the phase-shifted sinewave pulsewidth modulation, so the qZS-CMI's power loss is reduced when using the PS-PWAM. The PS-PWAM principle and the qZS-CMI's loss analysis are presented. The simulation and experimental results verify the proposed PS-PWAM and the resultant efficiency improvement.

Original languageEnglish
Pages (from-to)1444-1456
Number of pages13
JournalIET Power Electronics
Volume7
Issue number6
DOIs
Publication statusPublished - 2014

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Amplitude modulation
Modulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Phase-shifted pulse-width-amplitude modulation for quasi-Z-source cascade multilevel inverter-based photovoltaic power system. / Liu, Yushan; Ge, Baoming; Abu-Rub, Haitham; Peng, Fang Zheng.

In: IET Power Electronics, Vol. 7, No. 6, 2014, p. 1444-1456.

Research output: Contribution to journalArticle

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