Norm-Optimal Iterative Learning Control Applied to Gantry Robots for Automation Applications

  • Authors:
  • J. D. Ratcliffe;P. L. Lewin;E. Rogers;J. J. Hatonen;D. H. Owens

  • Affiliations:
  • Sch. of Electron. & Comput. Sci., Southampton Univ.;-;-;-;-

  • Venue:
  • IEEE Transactions on Robotics
  • Year:
  • 2006

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Abstract

This paper is concerned with the practical implementation of the norm-optimal iterative learning control (NOILC) algorithm. Here, the complexity of this algorithm is first considered with respect to real-time control applications, and a new modified version, fast norm-optimal ILC (F-NOILC), is derived for this application, which potentially allows implementation with a sampling rate three times faster that the original algorithm. A performance index is used to assess the experimental results obtained from applying F-NOILC to an industrial gantry robot system and, in particular, the effects of varying the parameters in the cost function, which is at the heart of the norm-optimal approach