Modeling and SVPWM control of quasi-Z-source inverter

Yushan Liu, Baoming Ge, Fernando J.T.E. Ferreira, Anibal T. De Almeida, Haitham Abu-Rub

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

41 Citations (Scopus)

Abstract

In today's renewable energy power generation systems, inverters have become key devices connected between energy sources and power grids. The newly presented quasi-Z-source inverter (qZSI) has the unique advantages of boosting DC bus voltage without additional boost link, lower component ratings, as well as constant DC input current compared with the traditional Z-source inverter. To better design the control schemes of this novel topology, the small-signal model is deduced using state variables perturbance mathematical analysis. By this model, the voltage-current closed-loop control of shoot-through duty cycle is designed. The space vector PWM (SVPWM) technique is modified to satisfy the particularity of qZSI. Simulation results certify the correctness and effectiveness of the proposed model and control strategies and demonstrate the applicability of qZSI technology to overcome the disturbances from DC link or AC loads in renewable energy power generation systems.

Original languageEnglish
Title of host publication11th International Conference on Electrical Power Quality and Utilisation, EPQU 2011
Pages95-101
Number of pages7
DOIs
Publication statusPublished - 1 Dec 2011
Event11th International Conference on Electrical Power Quality and Utilisation, EPQU 2011 - Lisbon, Portugal
Duration: 17 Oct 201119 Oct 2011

Publication series

NameProceeding of the International Conference on Electrical Power Quality and Utilisation, EPQU
ISSN (Print)2150-6647
ISSN (Electronic)2150-6655

Other

Other11th International Conference on Electrical Power Quality and Utilisation, EPQU 2011
CountryPortugal
CityLisbon
Period17/10/1119/10/11

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Keywords

  • Quasi-Z-source inverter
  • SVPWM control
  • renewable energy power generation
  • shoot-through duty cycle
  • small-signal model

ASJC Scopus subject areas

  • Energy(all)
  • Electrical and Electronic Engineering

Cite this

Liu, Y., Ge, B., Ferreira, F. J. T. E., De Almeida, A. T., & Abu-Rub, H. (2011). Modeling and SVPWM control of quasi-Z-source inverter. In 11th International Conference on Electrical Power Quality and Utilisation, EPQU 2011 (pp. 95-101). [6128914] (Proceeding of the International Conference on Electrical Power Quality and Utilisation, EPQU). https://doi.org/10.1109/EPQU.2011.6128914