International Journal of Electronic Engineering and Computer Science
Articles Information
International Journal of Electronic Engineering and Computer Science, Vol.1, No.1, Aug. 2016, Pub. Date: Jun. 20, 2016
SVM and PI Based Simplest Approach to Direct Torque Control of Induction Motor
Pages: 1-5 Views: 575 Downloads: 376
[01] Hafeezul Haq, Department of Electrical & Electronics Engineering, Karadeniz Technical University, Trabzon, Turkey.
[02] Mehedi Hasan Imran, Department of Electrical & Electronics Engineering, Karadeniz Technical University, Trabzon, Turkey.
[03] Halil Ibrahim Okumus, Department of Electrical & Electronics Engineering, Karadeniz Technical University, Trabzon, Turkey.
[04] Zia-ul-Haq , Department of Electrical Engineering, University of Engineering & Technology, Peshawar, Pakistan.
DTC is a control technique in AC drive systems to obtain high performance torque control. The conventional DTC drive uses a pair of hysteresis comparators. Those DTC drives suffer from high torque ripple and variable switching frequency. The most common and easy solution to those problems is the use of space vector depends on the reference torque and flux. This paper proposes design and simulation of a direct torque controlled induction motor drive system based on Space vector modulation and PI controller to control speed, torque and to reduce torque ripples. For controlling these the principle used here is the simultaneously decoupling of the stator flux and electromagnetic torque. Hysteresis comparators used by DTC drives suffer from high torque ripple and variable switching frequency. The proposed SVM based DTC technique reduces torque ripples and preserve DTC transient merits such as fast torque response. The basis of the SVM-DTC method is the calculation of the required space vector of voltage to compensate the errors in flux and torque and its generation using the SVM for each sample period. The performance of this method in this paper is demonstrated by simulation using Simulink software.
Direct Torque Control, Induction Motor, PI Controller, Space Vector Modulation
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