Switched-coupled-inductor inverter

Qin Lei, Fang Z. Peng, Miaosen Shen

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

7 Citations (Scopus)

Abstract

A new family of switched-coupled-inductor inverters has been proposed in this paper, with voltage buck-boost function. In voltage-fed switched-coupled-inductor inverter, a boost function can be implemented by introducing an extra shoot-through state on the inverter bridge. It utilizes the same principle as the Z-source inverter, but has higher boost ratio and lower active device voltage stress at the same voltage gain. It also has wider voltage buck/boost range than conventional boost-converter inverter. In current-fed switched coupled inductor inverter, a buck function can be implemented by introducing an extra open zero state on the inverter bridge. The current-fed topologies are capacitor-less solution among the buck-boost inverters, which reduces the system size significantly. In addition, compared to traditional boost-converter-inverter, it has less switch count, and less active device current stress. Compared to current-fed Z-source inverter, it has higher boost ratio and lower active device current stress. The inverter can sustain minimum voltage and current stress at a certain operation point, through adjusting the trans-ratio and the shoot through/open circuit duty cycle. The simulation results are given to verify the theory analysis and demonstrate the great merits of the switched-coupled-inductor inverter. It is beneficial to be applied in dc-ac applications that demand a high voltage gain from a very low voltage dc source, such as the micro-inverter in photovoltaic, or G/M in HEV.

Original languageEnglish (US)
Title of host publication2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013
Pages5280-5287
Number of pages8
DOIs
StatePublished - 2013
Externally publishedYes
Event5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013 - Denver, CO, United States
Duration: Sep 15 2013Sep 19 2013

Other

Other5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013
CountryUnited States
CityDenver, CO
Period9/15/139/19/13

Fingerprint

Electric potential
Capacitors
Switches
Topology
Networks (circuits)

Keywords

  • buck-boost
  • capacitor-less
  • open zero
  • shoot through
  • switched-coupled-inductor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

Cite this

Lei, Q., Peng, F. Z., & Shen, M. (2013). Switched-coupled-inductor inverter. In 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013 (pp. 5280-5287). [6647416] https://doi.org/10.1109/ECCE.2013.6647416

Switched-coupled-inductor inverter. / Lei, Qin; Peng, Fang Z.; Shen, Miaosen.

2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013. 2013. p. 5280-5287 6647416.

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

Lei, Q, Peng, FZ & Shen, M 2013, Switched-coupled-inductor inverter. in 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013., 6647416, pp. 5280-5287, 5th Annual IEEE Energy Conversion Congress and Exhibition, ECCE 2013, Denver, CO, United States, 9/15/13. https://doi.org/10.1109/ECCE.2013.6647416
Lei Q, Peng FZ, Shen M. Switched-coupled-inductor inverter. In 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013. 2013. p. 5280-5287. 6647416 https://doi.org/10.1109/ECCE.2013.6647416
Lei, Qin ; Peng, Fang Z. ; Shen, Miaosen. / Switched-coupled-inductor inverter. 2013 IEEE Energy Conversion Congress and Exposition, ECCE 2013. 2013. pp. 5280-5287
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