Speed control of induction motors using a novel fuzzy sliding-mode structure

  • Authors:
  • F. Barrero;A. Gonzalez;A. Torralba;E. Galvan;L. G. Franquelo

  • Affiliations:
  • Departimento de Ingenieria Electronica, Escuela Superior de Ingenieros, Seville;-;-;-;-

  • Venue:
  • IEEE Transactions on Fuzzy Systems
  • Year:
  • 2002

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Abstract

This paper presents a new approach to indirect vector control of induction motors. Two nonlinear controllers, one of sliding mode type and the other PI-fuzzy logic-based, define a new control structure. Both controllers are combined by means of an expert system based on Takagi-Sugeno fuzzy reasoning. The sliding-mode controller acts mainly in a transient state while the PI-like fuzzy controller acts in the steady state. The new structure embodies the advantages that both nonlinear controllers offer: sliding-mode controllers increasing system stability limits, and PI-like fuzzy logic based controllers reducing the chattering in permanent state. The scheme has been implemented and experimentally validated