Evolutionary optimization of dynamic control problems accelerated by progressive step reduction

  • Authors:
  • Q. Tuan Pham

  • Affiliations:
  • University of New South Wales, Sydney, Australia

  • Venue:
  • GECCO '05 Proceedings of the 7th annual conference on Genetic and evolutionary computation
  • Year:
  • 2005

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Abstract

In this paper, we describe the use of an evolutionary algorithm (EA) to solve dynamic control optimization problems in engineering. In this class of problems, a set of control variables must be manipulated over time to optimize the outcome, which is obtained by solving a set of differential equations for the state variables. A new problem-specific technique, progressive step reduction (PSR), is shown to considerably improve the efficiency of the algorithm for this application. Factorial experimentation and rigorous statistical analysis are used to determine the effects of PSR and tune the parameters of the algorithm.