This study presents a feedback linearization strategy
and a robust controller to permit a decoupling and regulation of the motor
states in order to assure a good dynamic performance and stability of
the global system. As the control required the knowledge of the instantaneous
flux of the rotor and the rotor parameter estimation can improve the control
quality, a six-dimensional discrete-time extended sliding mode observer
is proposed for on-line estimation of rotor fluxes and rotor time constant.
The simulation results for a 1.8 kW induction motor are presented to illustrate
the validity and the high robustness of the proposed approach against
parameter variations and disturbances.
O. Asseu, M. Koffi, Z. Yeo, X. Lin-Shi, M.A. Kouacou and T.J. Zoueu, 2008. Robust Feedback linearization and Observation Approach for Control of an Induction Motor. Asian Journal of Applied Sciences, 1: 59-69.