Title :
A control method of a three phase five-level PWM converter
Author :
Matsuse, Kouki ; Sugita, Katsuhiko ; Kitahata, Takeshi ; Huang, Lipei
Author_Institution :
Dept. of Electr. Eng., Meiji Univ., Kawasaki, Japan
fDate :
31 Aug-4 Sep 1998
Abstract :
This paper describes a control method for a three phase five-level PWM converter that is used as a DC power source for five-level inverters for AC drives. The proposed control circuit uses multiband hysteresis comparators to simplify control of the main circuit. The proposed method can (1) overcome voltage imbalance in the DC capacitors, (2) achieve a unity power factor, (3) generate nearly sinusoidal input currents, and (4) regenerate electric power back to the power system. Simulations were carried out using PSIM to verify the proposed control method. The results demonstrate the validity of the proposed method
Keywords :
AC motor drives; PWM invertors; PWM power convertors; comparators (circuits); electric current control; machine control; power factor; power supplies to apparatus; voltage control; AC drives; DC capacitors voltage imbalance; DC output voltages control; DC power source; PSIM; control circuit; control method; electric power regeneration; five-level inverters; input currents control; multiband hysteresis comparators; nearly sinusoidal input currents generation; three phase five-level PWM converter; unity power factor; Capacitors; Circuits; DC generators; Hysteresis; Power generation; Power system simulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Voltage;
Conference_Titel :
Industrial Electronics Society, 1998. IECON '98. Proceedings of the 24th Annual Conference of the IEEE
Conference_Location :
Aachen
Print_ISBN :
0-7803-4503-7
DOI :
10.1109/IECON.1998.724187
