Direct Torque Control of Induction Motor Using Sophisticated Lookup Tables Based on Neural Networks

Y.V.Siva Reddy¹, M.Vijayakumar² and T. Brahmananda Reddy¹

¹E.E.E Department, G. Pulla Reddy Engineering College, Kurnool, Andhra Pradesh, India

²EE Department, JNTU, Anantapur, Andhra Pradesh, India

 

Abstract:

 Induction motor drive based on direct torque control (DTC) allows high dynamic performance to be obtained with very simple hysteresis control scheme. Direct control of the torque and flux is achieved by proper selection of inverter voltage space vector through a lookup table .In this paper apart from six sector look up table used for classical DTC, a modified look up table, which also use  six sectors but with different zones and a twelve sector table are presented .This paper also presents the application of neural networks to control induction machines with DTC. Neural network is used to emulate the state selector of the DTC. In this paper Levenberg-Marquardt algorithm is used to train the neural network. Finally DTC is simulated with and without neural networks and results are compared.

Keywords: Direct torque control, Neural Networks.

Biographies:

	Y.V. Siva Reddy received B.Tech and M.Tech degrees from JNT University, Anantapur in the year 1995 and 2000 respectively. He is currently pursuing Ph.D at J.N.T.University, Hyderabad. He is presently Associate Professor in the Electrical and Electronics Engineering Department, G. Pulla Reddy Engineering College, Kurnool.  His research areas include Power systems and Electrical Drives.
	Dr. M. Vijaya Kumar graduated from NBKR Institute of Science and Technology, Vidyanagar, A.P, India in 1988. He obtained M.Tech degree from Regional Engineering College, Warangal, India in 1990. He received Doctoral degree from JNT University, Hyderabad, India in 2000.  Currently he is working as Associate professor in Electrical and Electronics Engineering Department, JNT University, Anantapur, A.P, India.
	T. Brahmananda Reddy graduated from Sri Krishna Devaraya University, Anantapur in the year 2001, M.E from Osmania University, Hyderabad in the year 2003. He is currently pursuing Ph.D at J.N.T.University, Hyderabad. He is presently Assistant Professor in the Electrical and Electronics Engineering Department, G. Pulla Reddy Engineering College, Kurnool.  His research areas include PWM techniques, and Electrical Drives.

BibTex:

@ARTICLE{P1120701001,

AUTHOR = {Y.V.Siva Reddy and  M.Vijayakumar and T.Brahmananda Reddy},

TITLE = {Direct Torque Control of Induction Motor Using Sophisticated Lookup Tables Based on Neural Networks},

}

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