A Five-Level Cascade Multilevel Inverter Three-Phase Motor Drive Using a Single DC Source
- University of Tennessee, Knoxville (UTK)
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Power Electronics and Electric Machinery Research Facility
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 974616
- Report Number(s):
- ORNL/TM-2006/572; VT0302000; CEVT022; TRN: US201008%%412
- Country of Publication:
- United States
- Language:
- English
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