Cover
Vol. 16 No. 1 (2020)

Published: June 30, 2020

Pages: 49-53

Original Article

Bifurcation and Chaos from DTC Induction Motor Drive System

Ahmed Sadeq Hunaish 1 Fadhil Rahma Tahir
1Electrical Engineering Department, University of Basrah, Basrah, Iraq.
History
  • Received: March 30, 2020
  • Revised: April 29, 2020
  • Accepted: April 30, 2020
  • Available Online: May 2, 2020
DOI

https://doi.org/10.37917/ijeee.16.1.6

Abstract

In this paper, three phase induction motor (IM) has been modelled in stationary reference frame and controlled by using direct torque control (DTC) method with constant V/F ratio. The obtained drive system consists of nine nonlinear first order differential equations. The numerical analysis is used to investigate the system behavior due to control parameter change. The integral gain of speed loop is used as bifurcation parameter to test the system dynamics. The simulation results show that the system has period-doubling route to chaos, period-1, period-2, period-4, and then the system gets chaotic oscillation. A specific value of the parameter range shows that the system has very strong randomness and a high degree of disturbance

Keywords

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