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B. Venugopal Reddy, V.T.Somasekhar, Y. Kalyan, “Decoupled Space-Vector PWM strategies for a Four-Level Asymmetrical Open-End Winding Induction Motor Drive With waveform Symmetries” IEEE TRANS on INDUSTRIAL ELECTRONICS, VOL. 58, NO. 11, NOVEMBER 2011 pp. 5130-5141.

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Article

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

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


Journal of Automation and Control. 2015, Vol. 3 No. 1, 18-24
DOI: 10.12691/automation-3-1-3
Copyright © 2015 Science and Education Publishing

Cite this paper:
Satheesh G, T Bramhananda Reddy, 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.

Correspondence to: Satheesh  G, Electrical and Electronics Engineering Department, G.Pulla Reddy Engineering College, Kurnool, India. Email: gsatish.eee@gmail.com

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.

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