Three phase current-fed Z-source PWM rectifier

Qin Lei, Shuitao Yang, Fang Zheng Peng, Ryosuke Inoshita

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

6 Scopus citations


Traditional voltage-source PWM rectifier (VSR) is a boost converter and traditional current-source PWM rectifier (CSR) is a buck converter. A dc-dc converter is requested to use with them to implement buck-boost capability. Also CSR can only provide unidirectional power flow. To overcome these limitations, voltage-fed Z-source PWM rectifier and current-fed Z-source PWM rectifier have been proposed. They can buck and boost the ac voltage with only six active switches. In addition, current-fed Z-source PWM rectifier has its own merits because it can provide bidirectional power flow without replacing the diode in Z network with an active switch which is required in voltage-fed Z-source PWM rectifier. However, CSRs are less investigated because the switches have to be reverse blocking. Recently developed reverse blocking IGBT (RB-IGBT) makes the CSRs and current-fed Z-source rectifiers more attractive and realizable. This paper describes the operating principle of this current-fed Z-source PWM rectifier, analyzes the circuit and characteristics, and discuss the PWM control strategy. A RB-IGBT based current-fed Z-source PWM rectifier has been developed in laboratory. Both simulation and experimental results are shown to verify the operation and theoretical analysis.

Original languageEnglish (US)
Title of host publication2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Number of pages6
StatePublished - 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


Other2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Country/TerritoryUnited States
CitySan Jose, CA


  • Active state
  • Buck-boost
  • Current-fed
  • Open zero state
  • Rectifier
  • Short zero state
  • Z-source

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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