A Two-Layer Robot Controller Design Using Evolutionary Algorithms

  • Authors:
  • F. Abdessemed;K. Benmahammed

  • Affiliations:
  • Université/ de Batna, Institut d'Electronique, Rue Chahid Boukhlouf, Batna, Algé/rie/ e-mail: fodil_a@hotmail.com;Université/ de Sé/tif, Institut d'Electronique, Sé/tif, Algé/rie

  • Venue:
  • Journal of Intelligent and Robotic Systems
  • Year:
  • 2001

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Abstract

The results obtained by a rule-based proportional, integral, derivative (PID) precompensator controller applied to a two-joint manipulator are discussed. The end effector is made to follow a specified trajectory obtained from the inverse kinematics by an appropriate design of a fuzzy control law. The desired trajectory is determined by the values of the joint variables and the structural kinematics parameters of the manipulator. The performance of the PID controller is exploited here to build a fuzzy precompensator that will enhance the conventional PID and to obtain better performances and results. The fuzzy rule base of the precompensator designed is found by associating two evolutionary algorithms that search for the optimal solution.