Title :
A dual PWM scheme for three-level voltage source converter system with IGBT modules
Author :
Wei, Lixiang ; Li, Chongjian ; Liu, Congwei ; Li, Fahai
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
fDate :
31 Aug-4 Sep 1998
Abstract :
This paper presents a dual PWM method for the three-level IGBT converter to drive an induction motor. A VMEbus based multi-CPU hardware platform is depicted in detail. This structure has the following merits: high performance in industry application, flexible control, easy to handle different traction system with the single bus. By applying the space vector control method to dual-PWM three-level converter system, we can minimize both input and output current harmonics, get unity input power factor and retain the DC link voltage balance. The principle of the proposed PWM method and the control method of flux orientation are discussed in detail. Computer simulation results verified the former method on a prototype of one three-level IGBT system with 5 kHz
Keywords :
PWM power convertors; harmonics suppression; induction motor drives; insulated gate bipolar transistors; machine vector control; magnetic flux; magnetic variables control; power conversion harmonics; power factor; system buses; 5 kHz; DC link voltage balance; IGBT modules; VMEbus; dual PWM method; flexible control; flux orientation control; high performance; induction motor drive; input current harmonics; multi-CPU hardware platform; output current harmonics; space vector control method; three-level IGBT converter; three-level IGBT system; three-level voltage source converter system; traction system; unity input power factor; Control systems; Hardware; Induction motors; Industry applications; Insulated gate bipolar transistors; Machine vector control; Power system harmonics; Pulse width modulation; Pulse width modulation converters; 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.1998.724188
