Particle swarm optimization of interval type-2 fuzzy systems for FPGA applications

  • Authors:
  • Yazmin Maldonado;Oscar Castillo;Patricia Melin

  • Affiliations:
  • Tijuana Institute of Technology, Mexico;Tijuana Institute of Technology, Mexico;Tijuana Institute of Technology, Mexico

  • Venue:
  • Applied Soft Computing
  • Year:
  • 2013

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Abstract

This paper proposes the optimization of the type-2 membership functions for the average approximation of an interval of type-2 fuzzy controller (AT2-FLC) using PSO, where the optimization only considers certain points of the membership functions and, the fuzzy rules are not modified so that the algorithm minimizes the runtime. The AT2-FLC regulates the speed of a DC motor and is coded in VHDL for a FPGA Xilinx Spartan 3A. We compared the results of the optimization using PSO method with a genetic algorithm optimization of an AT2-FLC under uncertainty and the results are discussed. The main contribution of the paper is the design, simulation and implementation of PSO optimization of interval tye-2 fuzzy controllers for FPGA applications.