A New Switched Capacitor 7L Inverter with Triple Voltage Gain and Low Voltage Stress

Marif Daula Siddique, Saad Mekhilef, Noraisyah Mohamed Shah, M. Jagabar Sathik, Frede Blaabjerg

Research output: Contribution to journalJournal articleResearchpeer-review

5 Citations (Scopus)

Abstract

In this paper, a new switched capacitor based multilevel inverter topology is proposed. The proposed topology generates seven level (7L) output voltage using a single dc voltage source along with two floating capacitors. The output voltage of the proposed topology is three-times higher than the input voltage (i.e., gain factor of Vin:Vout = 1:3) along with self-voltage balancing of capacitors. The proposed seven level triple voltage gain boost inverter (7L-3GBI) inherently generates a bipolar waveform without backend H-bridge that reduces the total standing voltage of the topology. The practicability of the proposed topology has been demonstrated by having a quantitative and cost comparison with similar topologies. Furthermore, the workability of the proposed 7L topology has been validated through different results taken from a prototype laboratory setup.
Original languageEnglish
Article number8784400
JournalI E E E Transactions on Circuits and Systems. Part 2: Express Briefs
Volume67
Issue number7
Pages (from-to)1294-1298
Number of pages5
ISSN1549-7747
DOIs
Publication statusPublished - Jul 2020

Keywords

  • multilevel inverter
  • single source inverter
  • boost inverter
  • seven-level (7L) inverter
  • switched capacitor

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