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

Volume

2

fYear

1998

fDate

31 Aug-4 Sep 1998

Firstpage

755

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IECON.1998.724188

Filename

724188