Issues on Stability of ADP Feedback Controllers for Dynamical Systems

  • Authors:
  • S. N. Balakrishnan;Jie Ding;F. L. Lewis

  • Affiliations:
  • Dept. of Mech. & Aerosp. Eng., Missouri Univ. of Sci. & Technol., Rolla, MO;-;-

  • Venue:
  • IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
  • Year:
  • 2008

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Abstract

This paper traces the development of neural-network (NN)-based feedback controllers that are derived from the principle of adaptive/approximate dynamic programming (ADP) and discusses their closed-loop stability. Different versions of NN structures in the literature, which embed mathematical mappings related to solutions of the ADP-formulated problems called ldquoadaptive criticsrdquo or ldquoaction-criticrdquo networks, are discussed. Distinction between the two classes of ADP applications is pointed out. Furthermore, papers in ldquomodel-freerdquo development and model-based neurocontrollers are reviewed in terms of their contributions to stability issues. Recent literature suggests that work in ADP-based feedback controllers with assured stability is growing in diverse forms.