Resolução de Problemas de Controle Ótimo usando a Abordagem Indireta

Authors

  • Fran Sérgio Lobato Universidade Federal de Uberlândia
  • Gustavo Libotte Universidade do Estado do Rio de Janeiro

Keywords:

Problema de Controle Ótimo, Abordagem Indireta, Equações Algébrico-Diferenciais de Valor no Contorno

Abstract

The Optimal Control Problem (OCP) consists of determining the control variable profile for the purpose of optimizing an objective function. From a mathematical perspective, the OCP can be essentially solved using two approaches, namely, the Direct and the Indirect methods. In the Direct approach, the OCP is transformed into a nonlinear programming problem by approximating the control variable and state variables. On the other hand, in the Indirect approach, the original optimization problem is converted into an algebraic-differential boundary value problem, obtained by applying the optimality condition. In this context, the present contribution aims to solve OCPs resulting from the application of the optimality condition using the Normalized Collocation Method. For this purpose, case studies with different levels of complexity are considered. The obtained results demonstrate the quality of the proposed methodology in comparison to other numerical strategies.

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References

ASCHER, U., SPITERI, R. Collocation Software for Boundary-Value Differential-Algebraic Equations. SIAM J. Scient. Comput., 15, 938-952, 1994.

BRENAN, K. E., CAMPBELL, S. L., PETZOLD, L. R. Numerical Solution of Initial Value Problems in Differential Algebraic Equations. Classics in Applied Mathematics, SIAM Philadelphia, 1996.

BRYSON, A. E., HO, Y. C. Applied Optimal Control. Hemisphere Publishing, Washington, 1975.

FEEHERY, W. F. Dynamic Optimization with Path Constraints. Massachusetts Institute of Technology, 1998.

HENSON, M. A., SEBORG, D. A. Nonlinear Control Strategies for Continuous Fermenters. Chemical Engineering Science, 47(4), 821-835, 1992.

LARANJEIRA, P., PINTO, J.C. Métodos Numéricos em Problemas de Engenharia Química, Editora E-Papers, 316, ISBN 85-87922-11-4, 1º ed., 2001.

LOBATO, F. S. Abordagem Mista para Problemas de Otimização Dinâmica. Faculdade de Engenharia Química, Universidade Federal de Uberlândia, Uberlândia-MG, 2004.

LOBATO, F. S., OLIVEIRA-LOPES, L. C., MURATA, V. V. Optimal Feed Policy for Fed-Batch Fermentation with Events Identification based on Switching Structures. Proceedings of the XXII IACChE (CIIQ) 2006 and V CAIQ, Buenos Aires - Argentina, 2006.

VILLADSEN, J., MICHELSEN, M.L. Solution of Differential Equation Models by Polynomial Approximation. Prentice-Hall, Inc., Englewood Cliffs, N.J., 1978.

VON STRYK, O. User's Guide for DIRCOL - A Direct Collocation Method for the Numerical Solution of Optimal Control Problems. Technische Universitat Darmstadt, Fachgebiet Simulation und Systemoptimierung (SIM), 1999.

VON STRYK, O., BULIRSCH, R. Direct and Indirect Methods for Trajectory Optimization. Annals of Operations Research, 37, 357-373, 1992.

Published

2024-01-31

How to Cite

Lobato, F. S., & Libotte, G. (2024). Resolução de Problemas de Controle Ótimo usando a Abordagem Indireta. Revista Interdisciplinar De Pesquisa Em Engenharia, 9(2), 38–45. Retrieved from https://periodicos.unb.br/index.php/ripe/article/view/52314