Cascaded Multilevel Inverter With Regeneration Capability and Reduced Number of Switches

P. Lezana, J. Rodriguez, D. A. Oyarzun

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Multilevel converters are a very interesting alternative for medium and high power drives. One of the more flexible topologies of this type is the cascaded multicell converter. This paper proposes the use of a single-phase reduced cell suitable for cascaded multilevel converters. This cell uses a reduced single-phase active rectifier at the input and an H-bridge inverter at the output side. This topology presents a very good performance, effectively controlling the waveform of the input current and of the output voltage and allowing operation in the motoring and regenerative mode. The results presented in this paper confirm that this medium voltage inverter effectively eliminates low frequency input current harmonics at the primary side of the transformer and operates without problems in regenerative mode.
Original languageEnglish
Pages (from-to)1059-1066
Number of pages8
JournalIEEE Transactions on Industrial Electronics
Issue number3
Publication statusPublished - 3 Mar 2008

Keywords / Materials (for Non-textual outputs)

  • invertors
  • rectifiers
  • switches
  • transformers
  • cascaded multilevel inverter
  • regeneration capability
  • power drives
  • single-phase active rectifier
  • H-bridge inverter
  • current harmonics
  • transformer
  • Topology
  • Rectifiers
  • Pulse width modulation inverters
  • Pulse width modulation
  • Switches
  • Diodes
  • Bridge circuits
  • Voltage control
  • Pulse width modulation converters
  • Reactive power
  • Multilevel systems
  • pulsewidth modulated power converters
  • Pulse width modulated power converters
  • Regeneration capability


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