Journal of Automation and Control
ISSN (Print): 2372-3033 ISSN (Online): 2372-3041 Website: http://www.sciepub.com/journal/automation Editor-in-chief: Santosh Nanda
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Journal of Automation and Control. 2015, 3(1), 18-24
DOI: 10.12691/automation-3-1-3
Open AccessArticle

Decoupled PWM Based Direct Torque Control of Four Level Inverter Fed Open End Winding Induction Motor Drive

Satheesh G1, , T Bramhananda Reddy2 and CH Sai Babu2

1Electrical and Electronics Engineering Department, G.Pulla Reddy Engineering College, Kurnool, India

2Electrical and Electronics Engineering Department, University college of Engineering Kakinada, JNTUK, Kakinada, India

Pub. Date: January 19, 2015

Cite this paper:
Satheesh G, T Bramhananda Reddy and CH Sai Babu. Decoupled PWM Based Direct Torque Control of Four Level Inverter Fed Open End Winding Induction Motor Drive. Journal of Automation and Control. 2015; 3(1):18-24. doi: 10.12691/automation-3-1-3

Abstract

A direct torque control (DTC) of open end winding induction motor (OEWIM) with decoupled PWM is proposed in this present paper. In this approach the four level voltages are generated by two conventional two level inverters which are fed with the unequal dc link voltages. These two inverters are feeding the induction motor from either ends. However, the proposed DTC scheme does not require the sector information of the estimated fundamental stator voltage vector and its relative position with respect to the stator flux vector. Simulation results clearly demonstrate a better dynamic and simplicity in numerical calculations of the proposed method.

Keywords:
decoupled SVPWM Algorithm DTC four level SVPWM Multilevel Inverters OEWIM zero sequence voltages

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