Current-fed quasi-Z-source inverter with voltage buck-boost and regeneration capability

Shuitao Yang, F. Z. Peng, Qin Lei, Ryosuke Inoshita, Zhaoming Qian

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

24 Scopus citations

Abstract

The conventional current-source inverter has two major problems: unidirectional power flow and voltage boost operation, which makes it impossible to be used in many applications such as hybrid electric vehicles (HEVs) and general purpose variable speed motor drives. The Z-source inverters (ZSIs) can solve both problems. The quasi-Z-source inverters (qZSIs) were recently proposed as an important improvement to the traditional Z-source inverters. Besides the advantages inherited from the ZSIs, the qZSIs also have several of their own merits. The current-fed qZSI/ZSI is bidirectional with an additional diode, unlike the voltage-fed qZSI/ZSI that needs a switch to achieve bidirectional power flow. This paper presents a comprehensive study on the new features of the current-fed qZSI, including the advantageous buck-boost function, improved reliability, reduced passive component ratings, and unique regeneration capability. A modified SVPWM method is proposed and the available operating regions (motoring and regeneration operation) are analyzed in this paper. Since the current-fed qZSI has the same operation with the current-fed ZSI, many results of this paper are also applicable to the current-fed ZSI. A reverse blocking IGBT (RB-IGBT) based current-fed qZSI prototype was developed in the laboratory. Experimental results are shown to verify the theoretical analysis.

Original languageEnglish (US)
Title of host publication2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Pages3675-3682
Number of pages8
DOIs
StatePublished - Dec 28 2009
Externally publishedYes
Event2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 - San Jose, CA, United States
Duration: Sep 20 2009Sep 24 2009

Publication series

Name2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009

Other

Other2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
CountryUnited States
CitySan Jose, CA
Period9/20/099/24/09

Keywords

  • Current source inverter (CSI)
  • Regeneration capability
  • Voltage buck-boost
  • Voltage source inverter (VSI)
  • Z-source inverter

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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    Yang, S., Peng, F. Z., Lei, Q., Inoshita, R., & Qian, Z. (2009). Current-fed quasi-Z-source inverter with voltage buck-boost and regeneration capability. In 2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 (pp. 3675-3682). [5316557] (2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009). https://doi.org/10.1109/ECCE.2009.5316557