doi: 10.17586/2226-1494-2024-24-2-198-207


Adaptive suboptimal control problem and its variational solution

A. V. Blazhenov, A. A. Vedyakov, E. V. Milovanovich, O. V. Slita, V. Y. Tertychny-Dauri


Read the full article  ';
Article in Russian

For citation:
Blazhenov A.V., Vedyakov A.A., Milovanovich E.V., Slita O.V., Tertychny-Dauri V.Yu. Adaptive suboptimal control problem and its variational solution. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2024, vol. 24, no. 2, pp. 198–207 (in Russian). doi: 10.17586/2226-1494-2024-24-2-198-207


Abstract
A suboptimal cross-border problem is considered about nonlinear dynamic controlled systems under deterministic, uniformly bounded external unknown disturbances. The problem is solved by applying the methods of classical variations calculus for the case when the time interval of adaptation and optimization is not set in advance. The necessary conditions for the choice of extreme motion are determined due to the proper formation of a closed suboptimal adaptive control system. The theoretical analysis is supplemented with computer calculations using a specific model example, which showed effectiveness of the considered approach. The proposed scheme of suboptimal adaptive synthesis can be used in the calculations and design of nonlinear controlled dynamic systems.

Keywords: dynamic system, quality functional, Lagrange multipliers, suboptimal control, adaptation, Euler equations, transversality condition

Acknowledgements. The work was carried out with the support of the Ministry of Science and Higher Education of the Russian Federation, state assignment passport 2019-0898.

References
  1. Miroshnik I.V., Nikiforov V.O., Fradkov A.L. Nonlinear and Adaptive Control of Complex Dynamic Systems. St. Petersburg, Nauka Publ., 2000, 548 p. (in Russian)
  2. Fomin V.N., Fradkov A.L., Iakubovich V.A. Adaptive Control of the Dynamic Objects. Moscow, Nauka Publ., 1981, 448 p. (in Russian)
  3. Barabanov A.E. Adaptive suboptimal control of a linear object with stationary (deterministic) interference. Voprosy kibernetiki. Adaptivnye sistemy upravlenija, Moscow, Nauchnyj sovet po kibernetike AN SSSR, 1979, pp. 107–116. (in Russian)
  4. Bondarko V.A. Adaptive suboptimal control of solutions of linear difference equations. Doklady Akademii Nauk SSSR, 1983, vol. 270, no. 2, pp. 301–303. (in Russian)
  5. Krasovskii A.A. Suboptimal adaptive algorithm for continuous processes estimating. Doklady Akademii Nauk SSSR, 1976, vol. 230, no. 3, pp. 538–540. (in Russian)
  6. Kuntsevich V.M., Lychak M.M. Optimal and adaptive-control of dynamic objects under conditions of uncertainty. Automation and Remote Control, 1979, vol. 40, no. 1, pp. 60–68.
  7. Nemirovskii A.S., Tsypkin Y.Z. Optimal adaptive-control algorithms. Automation and Remote Control, 1984, vol. 45, no. 12, pp. 1589–1600. 
  8. Ponomarenko V.N., Iakubovich V.A. Method of recurrent target inequalities in problems of dynamic objects suboptimal adaptive control. Voprosy kibernetiki. Adaptivnye sistemy upravlenija, Moscow, Nauchnyj sovet po kibernetike AN SSSR, 1977, pp. 16–28. (in Russian)
  9. Tsypkin Ya.Z. Optimal adaptive control systems. Doklady Akademii nauk SSSR, 1984, vol. 277, no. 5, pp. 1091–1096. (in Russian)
  10. Tsypkin Y.Z. Optimality in problems and optimization algorithms under indeterminacy. Automation and Remote Control, 1986, vol. 47, no. 1, pp. 67–72.
  11. Chernous'ko F.L. Decomposition and suboptimal control in dynamical systems. Journal of Applied Mathematics and Mechanics, 1990, vol. 54, no. 6, pp. 727–734. https://doi.org/10.1016/0021-8928(90)90001-q
  12. Iakubovich V.A. Adaptive suboptimal control of a linear dynamic object in the presence of control lag. Kibernetika, 1976, no. 1, pp. 26–43. (in Russian)
  13. Krasovskii A.A. Analytical form of suboptimal adaptive control of nonlinear objects. Izvestija AN SSSR. Tehnicheskaja kibernetika, 1983, no. 2, pp. 137–145. (in Russian)
  14. Tertychny-Dauri V.Yu. Adaptive Mechanics. Moscow, Nauka. Fizmatlit Publ., 1998, 480 p. (in Russian)
  15. Tertychny-Dauri V.Yu. Galamech. Vol. 4. Optimum Mechanics. Moscow, Fizmatlit Publ., 2019, 608 p. (in Russian)
  16. Vedyakov A.A., Milovanovich E.V., Tertychny-Dauri V.Yu., Timofeeva G.V. Optimal control as conditional variational problem with variable right endpoint. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2019, vol. 19, no. 1, pp. 59–66. (in Russian). https://doi.org/10.17586/2226-1494-2019-19-1-59-66
  17. Vedyakov A.A., Milovanovich E.V., Slita O.V., Tertychny-Dauri V.Yu. Variational problem of adaptive optimal control. Theoretical and applied computer analysis. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2023, vol. 23, no. 2, pp. 252–262. (in Russian). https://doi.org/10.17586/2226-1494-2023-23-2-252-262


Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Copyright 2001-2024 ©
Scientific and Technical Journal
of Information Technologies, Mechanics and Optics.
All rights reserved.

Яндекс.Метрика