Influence of the sign function approximation form on performance of the sliding-mode speed observer for induction motor drive

  • Grzegorz Tarchala
  • Published 2011 in
    2011 IEEE International Symposium on Industrial…


The paper deals with the speed oscillation reduction methods for the Sliding Mode Observers (SMOs) of the induction motor (IM). The oscillations introduced by the chattering phenomenon can be reduced using the sign function continuous approximation and simple adaptation method. In this method the observer gain is adapted linearly with reference or estimated… (More)

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