Title page for ETD etd-12162009-020342
|Type of Document
||Single-switch three-phase zero-current-transition rectifier with power factor correction
||Master of Science
|Baumann, William T.
|Lee, Fred C.
|Date of Defense
A novel, zero-current-transition (ZCT) topology of the single-switch three-phase
boost PFC rectifier is proposed. The soft transition is achieved with a low-power
auxiliary circuit employing an additional switch. The circuit can be used with an IGBT at
switching frequencies up to 50. Its operation is analyzed in detail, and design
guidelines are provided. The small signal model of the circuit is developed, and voltage
mode control is designed. The results are verified on a 4 kW, 50 kHz, experimental ZCT
rectifier with an IGBT; total harmonic distortion below 9% and efficiency above 95%
|| Approximate Download Time
| 28.8 Modem
|| 56K Modem
|| ISDN (64 Kb)
|| ISDN (128 Kb)
|| Higher-speed Access
next to an author's name indicates that all
files or directories associated with their ETD
are accessible from the Virginia Tech campus network only.
If you have questions or technical
problems, please Contact DLA.