Direct torque control of asynchronous motor based on space vector modulation

Author

Zheng, Zheng ; Xue, Xiumei ; Xu, Ben

Author_Institution

Sch. of Electr. Eng. & Autom., Henan Polytech. Univ., Jiaozuo, China

fYear

2011

fDate

9-11 Sept. 2011

Firstpage

1440

Lastpage

1443

Abstract

In conventional direct torque control (DTC) strategy, the inverter switching frequency is not fixed, torque ripple and total current harmonic distortion is high. In order to overcome these problems, improved DTC using space vector pulse width modulation strategy (SVPWM-DTC) is proposed in this paper. Switching table is replaced by SVPWM module to enable the fixed switching frequency. On the other hand, PI controllers are used to regulate the stator flux and torque errors. The simulation results verify the system is accuracy and feasibility.

Keywords

PI control; induction motors; invertors; machine control; pulse width modulation; stators; torque control; PI controllers; SVPWM-DTC; asynchronous motor; direct torque control; inverter switching frequency; space vector pulse width modulation strategy; stator flux; switching table; Induction motors; Space vector pulse width modulation; Stators; Switches; Torque; Torque control; Vectors; Asynchronous Motor; Direct Torque Control; PI controller; SVPWM;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Control (ICECC), 2011 International Conference on

Conference_Location

Zhejiang

Print_ISBN

978-1-4577-0320-1

Type

conf

DOI

10.1109/ICECC.2011.6067880

Filename

6067880