A Switched Quasi-Z-Source Inverter with Continuous Input Currents

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Abstract

This paper proposes a modified Switched quasi-Z-Source Inverter (Sq-ZSI). The proposed Sq-ZSI achieves continuous input currents with a larger conversion ratio by replacing one diode of the Diode-assisted Switched Boost Inverter (DA-SBI)with a capacitor. Moreover, the voltage stress of the power switches in the proposed Sq-ZSI is lower and the voltage stress of the capacitors remains the same. The proposed topology is benchmarked with other Z-source inverters using active switches in terms of conversion ratio, voltage gain, and stresses on the power switches and capacitors. Simulation and experimental tests are provided to validate the analysis.
Original languageEnglish
Title of host publicationProceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
Number of pages6
Place of PublicationKorea
PublisherIEEE Press
Publication dateMay 2019
Pages1861-1866
Article number8797128
ISBN (Electronic)978-89-5708-313-0
Publication statusPublished - May 2019
Event2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) - Busan, Korea, Republic of
Duration: 27 May 201930 May 2019

Conference

Conference2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia)
CountryKorea, Republic of
CityBusan
Period27/05/201930/05/2019
SeriesInternational Conference on Power Electronics
ISSN2150-6078

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Keywords

  • Z-source inverter
  • Impedance source inverter
  • Quasi Z-source inverter
  • Active switch
  • Continuous input current
  • DC-AC inverter

Cite this

Yuan, J., Yang, Y., & Blaabjerg, F. (2019). A Switched Quasi-Z-Source Inverter with Continuous Input Currents. In Proceedings of 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019 - ECCE Asia) (pp. 1861-1866). [8797128] IEEE Press. International Conference on Power Electronics