A Five-Level Cascade Multilevel Inverter Three-Phase Motor Drive Using a Single DC Source

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Description

A method is presented showing that a 5-level cascade multilevel inverter for a three-phase permanent magnet sychronous motor drive can be implemented using only a single DC link to supply a standard 3-leg inverter along with three full H-bridges supplied by capacitors. It is shown that the capacitor voltages can be regulated while achieving an output voltage waveform that is 20% greater than that obained using the standard 3-leg inverter alone. Finally conditions are given in terms of the power factor and modulation index that determine when the capacitor voltage can regulated.

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Chiasson, J. N. October 1, 2006.

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A method is presented showing that a 5-level cascade multilevel inverter for a three-phase permanent magnet sychronous motor drive can be implemented using only a single DC link to supply a standard 3-leg inverter along with three full H-bridges supplied by capacitors. It is shown that the capacitor voltages can be regulated while achieving an output voltage waveform that is 20% greater than that obained using the standard 3-leg inverter alone. Finally conditions are given in terms of the power factor and modulation index that determine when the capacitor voltage can regulated.

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  • Report No.: ORNL/TM-2006/572
  • Grant Number: DE-AC05-00OR22725
  • DOI: 10.2172/974616 | External Link
  • Office of Scientific & Technical Information Report Number: 974616
  • Archival Resource Key: ark:/67531/metadc931167

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  • October 1, 2006

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Nov. 21, 2016, 6:39 p.m.

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Chiasson, J. N. A Five-Level Cascade Multilevel Inverter Three-Phase Motor Drive Using a Single DC Source, report, October 1, 2006; [Tennessee]. (digital.library.unt.edu/ark:/67531/metadc931167/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.