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Nonlinear Control of an Induction Motor Using a Reduced-Order Extended Sliding Mode Observer for Rotor Flux and Speed Sensorless Estimation

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DOI: 10.4236/eng.2010.210104    5,887 Downloads   10,729 Views   Citations

ABSTRACT

This article proposes an innovative strategy to the problem of non-linear estimation of states for electrical machine systems. This method allows the estimation of variables that are difficult to access or that are simply impossible to measure. Thus, as compared with a full-order sliding mode observer, in order to reduce the execution time of the estimation, a reduced-order discrete-time Extended sliding mode observer is proposed for on-line estimation of rotor flux, speed and rotor resistance in an induction motor using a robust feedback linearization control. Simulations results on Matlab-Simulink environment for a 1.8 kW induction motor are presented to prove the effectiveness and high robustness of the proposed nonlinear control and observer against modeling uncertainty and measurement noise.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

O. Asseu, M. Kouacou, T. Ori, Z. Yéo, M. Koffi and X. Lin-Shi, "Nonlinear Control of an Induction Motor Using a Reduced-Order Extended Sliding Mode Observer for Rotor Flux and Speed Sensorless Estimation," Engineering, Vol. 2 No. 10, 2010, pp. 813-819. doi: 10.4236/eng.2010.210104.

References

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