Cover
Vol. 15 No. 2 (2019)

Published: December 31, 2019

Pages: 1-9

Original Article

Bifurcations and Chaos in Current-Driven Induction Motor

Fatma N. Ayoob 1 Fadhil R. Tahir Khalid M. Abdul-Hassan
1Electrical Engineering Department, Basrah University, Basrah, Iraq.
History
  • Received: October 31, 2019
  • Available Online: December 31, 2019
DOI

https://doi.org/10.37917/ijeee.15.2.1

Abstract

In this paper, a model of PI-speed control current-driven induction motor based on indirect field oriented control (IFOC) is addressed. To assess the complex dynamics of a system, different dynamical properties, such as stability of equilibrium points, bifurcation diagrams, Lyapunov exponents spectrum, and phase portraits are characterized. It is found that the induction motor model exhibits chaotic behaviors when its parameters fall into a certain region. Small variations of PI parameters and load torque affect the dynamics and stability of this electric machine. A chaotic attractor has been observed and the speed of the motor oscillates chaotically. Numerical simulation results are validating the theoretical analysis.

Keywords

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