A DTC Algorithm for Three-level Induction Motor Drives System Based on Discrete Space Vector Modulation

Author

Lei, Lin ; Heqing, Zhong ; Yu, Deng ; Jie, Zhang ; Yunping, Zou ; Xu, She

Author_Institution

Dept. of Electron. Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan

fYear

2009

fDate

15-19 Feb. 2009

Firstpage

1978

Lastpage

1983

Abstract

In this paper, an uniform mathematic model of three-level inverters feed induction motor drives system has been constructed. Based on the application of the discrete space vector modulation (DSVM), a DTC strategy of three-level inverters induction motor drives system is proposed. With DSVM-DTC algorithm, the neutral-point (NP) voltage balancing problem and high dv/dt of output voltage is restrained. The proposed algorithm does not deteriorate dynamic performance of traditional DTC schemes, and does not increase switching loss at the same time. The experimental results verify the correctness and feasibility of the proposed control scheme.

Keywords

induction motor drives; invertors; machine control; mathematical analysis; torque control; DTC algorithm; discrete space vector modulation; neutral-point voltage balancing problem; three-level induction motor drives system; three-level inverters; Induction motor drives; Induction motors; Mathematical model; Mathematics; Pulse width modulation inverters; Space technology; Switches; Switching loss; Topology; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Conference_Location

Washington, DC

ISSN

1048-2334

Print_ISBN

978-1-4244-2811-3

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2009.4802944

Filename

4802944