An effective control method for quasi-Z-source cascade multilevel three-phase grid-tie photovoltaic power system

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

An effective control method for a three-phase quasi-Z-source cascade multilevel inverter (qZS-CMI) based grid-tie photovoltaic (PV) power system is proposed. The control scheme achieves distributed maximum power point tracking (MPPT) and independent dc-link voltage balance for all quasi-Z-source H-bridge inverter (qZS-HBI) based PV modules, and balanced three-phase grid-injected power for the qZS-CMI based PV system. A system-level modeling, which can be used to design the controllers, is also disclosed. Simulation and experiment are carried out on a 7-level qZS-CMI based PV system to validate the proposed scheme.

Original languageEnglish
Title of host publicationAPEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1733-1737
Number of pages5
ISBN (Print)9781479923250
DOIs
Publication statusPublished - 2014
Event29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014 - Fort Worth, TX, United States
Duration: 16 Mar 201420 Mar 2014

Other

Other29th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2014
CountryUnited States
CityFort Worth, TX
Period16/3/1420/3/14

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Keywords

  • cascade multilevel inverter
  • photovoltaic power system
  • Quasi-Z-source inverter
  • three-phase grid-tie synchronization

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Liu, Y., Abu-Rub, H., Ge, B., & Peng, F. Z. (2014). An effective control method for quasi-Z-source cascade multilevel three-phase grid-tie photovoltaic power system. In APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition (pp. 1733-1737). [6803539] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2014.6803539