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Electric Drive Control with Rotor Resistance and Rotor Speed Observers Based on Fuzzy Logic

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  • C. Ben Regaya
  • A. Zaafouri
  • A. Chaari

Abstract

Many scientific researchers have proposed the control of the induction motor without speed sensor. These methods have the disadvantage that the variation of the rotor resistance causes an error of estimating the motor speed. Thus, simultaneous estimation of the rotor resistance and the motor speed is required. In this paper, a scheme for estimating simultaneously the rotor resistance and the rotor speed of an induction motor using fuzzy logic has been developed. We present a method which is based on two adaptive observers using fuzzy logic without affecting each other and a simple algorithm in order to facilitate the determination of the optimal values of the controller gains. The control algorithm is proved by the simulation tests. The results analysis shows the characteristic robustness of the two observers of the proposed method even in the case of variation of the rotor resistance.

Suggested Citation

  • C. Ben Regaya & A. Zaafouri & A. Chaari, 2014. "Electric Drive Control with Rotor Resistance and Rotor Speed Observers Based on Fuzzy Logic," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-9, February.
    • Handle: RePEc:hin:jnlmpe:207826
    DOI: 10.1155/2014/207826
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