Abstract : Induction Motor (IM) has such characteristics as
multivariable, high coupled and high nonlinearity, which implies
that it is very difficult to control. In this paper, to achieve
accurate control performance of position control of IM, a newly
designed optimal control method is presented. The new
proposed controller is designed via combining sliding mode
control (SMC) and linear quadratic regulator (LQR). This is
new technique fully matches the merits of the easy design of the
LQR and the strong robustness of the SMC. To validate the
performances of the new proposed control strategy, we provided
a series of simulations and a comparative study between the
performances of the new proposed controller strategy and those
of the LQR and PI controller techniques. Simulation results
show that the proposed approach gives a better position
response and is robust to parameter variations.
Index Terms- Optimal control, Linear quadratic regulator,
Sliding mode control, Induction motor, Position control.
Aamir H O Ahmed
Martino O Ajangnay
Matthew W Dunnigan
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