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Title: A Five-Level Cascade Multilever Invertor Three-Phase Motor Drive Using a Single DC Source

Technical Report ·
DOI:https://doi.org/10.2172/901193· OSTI ID:901193

A method is presented showing that a 5-level cascade multilevel inverter for a three-phase permanent magnet synchronous 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 obtained 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.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
DOE Contract Number:
DE-AC05-00OR22725
OSTI ID:
901193
Report Number(s):
ORNL/TM-2006/572; TRN: US200713%%325
Country of Publication:
United States
Language:
English