Title :
Three-Level Rectifier Fed Four-Level Inverter for Electric Drives
Author :
Lopatkin, Nikolay ; Zinoviev, Gennady ; Usachev, Alex ; Weiss, Helmut
Author_Institution :
BTTSU (Shukshin Biyask Teacher-Training State University)/Department of Physics and Mathematics, Biysk, Russia
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
A special four-level three-phase diode clamped inverter fed by a correspondingly adapted untypical three-phase rectifier with two typical transformers is presented. The three-level rectifier is formed by consecutive connection of three rectifiers under the circuit of Scott for the bi-phase orthogonal voltage received from corresponding windings of two three-phase transformers. The inverter is realized by 4,5kV IGBT modules and provides a voltage of 6 kV (RMS) for a high power induction machine without transformer. The dependences of THD and integral values of THD of output voltage are simulated and shown for simple variants of three-carriers PWM and SVM.
Keywords :
Circuits; Diodes; Electric motors; Frequency conversion; Insulated gate bipolar transistors; Mechatronics; Phase transformers; Pulse width modulation; Pulse width modulation inverters; Rectifiers;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Conference_Location :
Portoroz
Print_ISBN :
1-4244-0121-6
DOI :
10.1109/EPEPEMC.2006.4778493
