Comparison of Z-source inverter and traditional two-stage boost-buck inverter in grid-tied renewable energy generation

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

40 Scopus citations

Abstract

Z-source inverter and traditional two-stage buck-boost inverter are compared with respect to the voltage stress and maximum current stress of semiconductor devices and the inverter efficiency in grid-tied renewable energy generation application. The operation principles of the two inverters are introduced firstly, considering the two different PWM strategies used in Z-source inverter. Based on the principles, voltage stress and maximum current stress of semiconductor devices in both topologies are derived and compared. Then the efficiency of two inverters are evaluated and compared. The analysis and comparison results show that the traditional two-stage buck-boost inverter bares smaller voltage and current stress of semiconductor device and has higher efficiency than Z-source inverter under the same input and output conditions.

Original languageEnglish
Title of host publication2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09
Pages1493-1497
Number of pages5
DOIs
StatePublished - 2009
Event2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09 - Wuhan, China
Duration: 17 May 200920 May 2009

Publication series

Name2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09

Conference

Conference2009 IEEE 6th International Power Electronics and Motion Control Conference, IPEMC '09
Country/TerritoryChina
CityWuhan
Period17/05/0920/05/09

Keywords

  • Buck-boost inverter
  • Current stress
  • Efficiency
  • Grid-tied application
  • Voltage stress
  • Z-source inverter

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