A Numerical Bifurcation Analysis of Indirect Vector-Controlled Induction Motor

Indirect vector-controlled induction motor (IVCIM) dynamics is well known for having different bifurcation behavior, viz., saddle-node bifurcation, Hopf bifurcation (HB), Bogdanov-Takens bifurcation, and zero-HB. A numerical analysis of these bifurcations for proportional-integral-controlled IVCIM is made in this brief using full-order IM model. Some new observations on the bifurcation behavior are made. Simulation and experimental results are presented validating the bifurcation behaviors.