Quasi-Z-source modular cascaded converter for high-power photovoltaic system

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1 Citation (Scopus)

Abstract

A quasi-Z-source modular cascaded converter (qZS-MCC) for high-power photovoltaic (PV) system is proposed. The qZS-MCC comprises front-end isolated qZS half-bridge (HB) dc-dc converter submodules (SMs). The post-stage qZS-HB handles the stochastic PV voltage and power variations, also interfaces with dc collection grid at series-output side; while a unified duty cycle is applied to the front-end isolation converter of all SMs, without control. Thus, the qZS-MCC PV system accomplishes the modular topology, at scalable voltage and power, with high reliability and easily implemented control. Configuration, operation, and control method of the proposed system are presented. Simulation results are carried out on 60-kW SM based qZS-MCC to demonstrate the validity of the proposed system.

Original languageEnglish
Title of host publicationProceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1226-1231
Number of pages6
Volume2016-May
ISBN (Electronic)9781467380751
DOIs
Publication statusPublished - 19 May 2016
EventIEEE International Conference on Industrial Technology, ICIT 2016 - Taipei, Taiwan, Province of China
Duration: 14 Mar 201617 Mar 2016

Other

OtherIEEE International Conference on Industrial Technology, ICIT 2016
CountryTaiwan, Province of China
CityTaipei
Period14/3/1617/3/16

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Keywords

  • dc-dc power conversion
  • galvanic isolation
  • High-power photovoltaic systems
  • quasi-Z-source inverter

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Liu, Y., Abu-Rub, H., & Ge, B. (2016). Quasi-Z-source modular cascaded converter for high-power photovoltaic system. In Proceedings - 2016 IEEE International Conference on Industrial Technology, ICIT 2016 (Vol. 2016-May, pp. 1226-1231). [7474929] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICIT.2016.7474929