Modified genetic algorithm for solving multi-extremal optimal control problem

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Abstract

The problem of optimal control with free right end of the trajectory is considered. To find its approximate solution, a reduction to a finite-dimensional optimization problem is performed. The control is a bounded piecewise constant function. A real-coded genetic algorithm is proposed to solve the finite-dimensional problem. To maintain the diversity of the population, a dynamic population size is proposed to be introduced into the algorithm. The algorithm finds a solution to the multi-extremal optimal control problem under different initial approximations. The work of the algorithm is tested on the optimal control problem with a non-convex reachability region. The work of the algorithm is compared with the method of variations in the control space and the genetic algorithm without modifications, as a result of which the advantage of using the modified genetic algorithm is shown.

About the authors

E. V. Antipina

Ufa University of Science and Technology

Author for correspondence.
Email: stepashinaev@ya.ru

Ph.D., Senior Researcher

Russian Federation, Ufa, 450076

S. A. Mustafina

Ufa University of Science and Technology

Email: mustafina_sa@mail.ru

Dr. of Phys.-Math. Sc., Professor

Russian Federation, Ufa, 450076

A. F. Antipin

Ufa University of Science and Technology

Email: andrejantipin@ya.ru

Ph.D., Assistant Professor

Russian Federation, Ufa, 450076

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