Title :
Four-Level Rectifier and Four-Level Inverter for Electric Drives
Author :
Lopatkin, Nikolay ; Zinoviev, Gennady ; Usachev, Alex ; Weiss, Helmut
Author_Institution :
Shukshin´´s Biysk State Teacher-Training Univ., Shukshin
Abstract :
A four-level three-phase diode clamped inverter fed by a correspondingly adapted untypical three-phase rectifier with two typical transformers is presented. The four-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 4,5 kV IGBT modules and provides a voltage of 6 kV (RMS) for a high power induction machine without transformer. The dependences of THD and THD of integral values of the output voltage are simulated and shown for simple variants of three-carriers PWM and SVM.
Keywords :
induction motor drives; invertors; rectifiers; transformers; electric drives; four-level rectifier; four-level three-phase diode clamped inverter; high power induction machine; three-phase rectifier; three-phase transformers; voltage 5 kV; voltage 6 V; Circuits; Diodes; Frequency conversion; Induction motors; Insulated gate bipolar transistors; Mechatronics; Phase transformers; Pulse width modulation; Pulse width modulation inverters; Rectifiers;
Conference_Titel :
Electronic Instrument Engineering, 2006. APEIE '06. 8th International Conference on Actual Problems of
Conference_Location :
Novosibirsk
Print_ISBN :
5-7782-0662-3
DOI :
10.1109/APEIE.2006.4292416
