A Novel Identification Method of Rotor Time Constant of Induction Motor

Abstract:

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Vector control system is dependent of parameters of motor, and rotor time constant usually changes with temperature. Through analyzing the influence of rotor time constant variations on the control system performance, a novel identification method based on adaptive flux observer is presented. Different with traditional pole assignment method, it implies robust control theory and Lyapunov stability theory, by solving a linear matrix inequality (LMI) to obtain the feedback gain matrix. The simulation results show that this method can identify the rotor time constant of induction motor accurately, and it has rapid converge, good indiscrimination degree and strong robustness.

Info:

Periodical:

Edited by:

Ford Lumban Gaol, Mehdi Roopaei, Svetlana Perry and Jessica Xu

Pages:

249-254

DOI:

10.4028/www.scientific.net/AMM.87.249

Citation:

Q. Li and T. G. Yang, "A Novel Identification Method of Rotor Time Constant of Induction Motor", Applied Mechanics and Materials, Vol. 87, pp. 249-254, 2011

Online since:

August 2011

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Price:

$35.00

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