Comprehensive modeling of single-phase quasi-Z-source photovoltaic inverter to investigate low-frequency voltage and current ripples

Yushan Liu, Haitham Abu-Rub, Baoming Ge, Dongsen Sun, Hao Zhang, Daqiang Bi, Fang Z. Peng

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

4 Citations (Scopus)

Abstract

The double-line-frequency (2ω) power ripple of single-phase quasi-Z-source (qZS) Photovoltaic (PV) inverter highly affects the whole system's design and performance. In this paper, a comprehensive modeling for single-phase qZS PV inverter is proposed, where the 2ω-ripple models of qZS inverter system served by real PV source are established and discussed on cases of with and without PV terminal capacitor. The influences from qZS inductance and capacitance, as well as PV panel terminal capacitance to the 2ω ripples are investigated by using the built models. Simulation and experimental results validate the proposed comprehensive 2ω-ripple models for the qZS-PV inverter.

Original languageEnglish
Title of host publication2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4226-4231
Number of pages6
ISBN (Electronic)9781479956982
DOIs
Publication statusPublished - 11 Nov 2014

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Keywords

  • Ac small-signal model
  • Low-frequency ripple
  • Photovoltaic power system
  • Quasi-Z-source inverter

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Liu, Y., Abu-Rub, H., Ge, B., Sun, D., Zhang, H., Bi, D., & Peng, F. Z. (2014). Comprehensive modeling of single-phase quasi-Z-source photovoltaic inverter to investigate low-frequency voltage and current ripples. In 2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014 (pp. 4226-4231). [6953976] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE.2014.6953976