Abstract
The time-optimal control problem for an arbitrary number of nonsynchronous oscillators with a limited scalar control is considered. An analytical investigation of the problem is performed. The property of strong accessibility and global controllability is proved, and a program control is found that brings the system from the origin to a fixed point in the shortest time. Trajectories satisfying both the motion equations of the system and the additional conditions based on the matrix nondegeneracy conditions of the relay control have been found for bringing a group of oscillators to the origin. Two classification methods of trajectories according to the number of control switchings are compared: the one based on the necessary extremum conditions and the Neustadt–Eaton numerical algorithm.
REFERENCES
Eaton, J.H., An iterative solution to time-optimal control, J. Math. Anal. Appl., 1962, vol. 5, pp. 329–344. https://doi.org/10.1016/S0022-247X(62)80015-8
Neustadt, L.W., Synthesizing time-optimal control systems, J. Math. Anal. Appl., 1960, vol. 1, pp. 484–493. https://doi.org/10.1016/0022-247X(60)90015-9
Boltyanskii, V.G., Matematicheskie metody optimal’nogo upravleniya (Mathematical Methods of Optimal Control), Moscow: Nauka, 1969.
Fedorenko, R.P., Priblizhennoe reshenie zadach optimal’nogo upravleniya (Approximate Solution of Optimal control problems), Moscow: Nauka, 1978.
Lee, E.B. and Markus, L., Foundations of Optimal Control Theory, New York: Wiley, 1967.
Pshenichnyi, B.N., A numerical method of calculating the optimum high speed control for linear systems, Comput. Math. Math. Phys., 1964, vol. 4, no. 1, pp. 71–82. https://doi.org/10.1016/0041-5553(64)90216-2
Starov, V.G., Improvement of Neustadt–Eaton’s method convergence, Mathematical Notes of NEFU, 2019, vol. 26, no. 1, pp. 70–80. https://doi.org/10.25587/SVFU.2019.101.27248
Rabinovich, A.B., On a class of methods for the iterational solution of time-optimal problems, Comput. Math. Math. Phys., 1966, vol. 6, no. 3, pp. 30–46. https://doi.org/10.1016/0041-5553(66)90131-5
Pshenichnyi, B.N. and Sobolenko, L.A., Accelerated method of solving the linear time optimal problem, Comput. Math. Math. Phys., 1968, vol. 8, no. 6, pp. 214–225. https://doi.org/10.1016/0041-5553(68)90107-9
Polyak, B.T., Convergence of methods of feasible directions in extremal problems, Comput. Math. Math. Phys., 1971, vol. 11, no. 4, pp. 53–70. https://doi.org/10.1016/0041-5553(71)90004-8
Aleksandrov, V.M., Real-time computation of optimal control, Comput. Math. Math. Phys., 2012, vol. 52, no. 10, pp. 1351–1372. https://doi.org/10.1134/S0965542512100028
Shevchenko, G.V., A numerical algorithm for solving a linear time-optimality problem, Comput. Math. Math. Phys., 2002, vol. 42, no. 8, pp. 1123–1134.
Shevchenko, G.V., Numerical method for solving a nonlinear time-optimal control problem with additive control, Comput. Math. Math. Phys., 2007, vol. 47, no. 11, pp. 1768–1778. https://doi.org/10.1134/S0965542507110048
Polyak, B.T., Khlebnikov, M.V., and Shcherbakov, P.S., Upravlenie lineinymi sistemami pri vneshnikh vozmu-shcheniyakh: Tekhnika lineinykh matrichnykh neravenstv (Control of Linear Systems under External Perturbations: Linear Matrix Inequalities Technique), Moscow: LENAND, 2014.
Ovseevich, A.I. and Fedorov, A.K., Asymptotically optimal feedback control for a system of linear oscillators, Dokl. Math., 2013, vol. 88, pp. 613–617. https://doi.org/10.1134/S106456241305013X
Kayumov, O.R., Time-Optimal Movement of Platform with Oscillators, Mechanics of Solids, 2021, vol. 56, no. 8, pp. 1622–1637. https://doi.org/10.3103/S0025654421080094
Berlin, L.M., Galyaev, A.A., and Lysenko, P.V., Time-optimal control problem of two non-synchronous oscillators, Mathematics, 2022. https://doi.org/10.3390/math10193552
Galyaev, A.A., Scalar control of a group of free-running oscillators, Autom. Remote Control, 2016, vol. 77, no. 9, pp. 1511–1523. https://doi.org/10.1134/S0005117916090010
Agrachev, A.A. and Sachkov, Yu.L., Control Theory from the Geometric Viewpoint, Berlin: Springer-Verlag, 2004.
Wyrwas, M., Strong accessibility and integral manifolds of the continuous-time nonlinear control systems, J. Math. Anal. Appl., 2019, vol. 469, no. 2, pp. 935–959. https://doi.org/10.1016/j.jmaa.2018.09.045
Benzaid, Z., Global null controllability of perturbed linear systems with constrained controls, J. Math. Anal. Appl., 1988, vol. 136, pp. 201–216. https://doi.org/10.1016/0022-247X(88)90126-6
Berlin, L.M., Galyaev, A.A. and Kravtsova, S.K., About two-switching control class in the time-optimal control problem of two non-synchronous oscillators, Large-Scale Systems Control, 2023, vol. 136, pp. 24–38. https://doi.org/10.25728/ubs.2023.101.2
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This research was funded by a grant to support youth scientific schools of Trapeznikov Institute of Control Sciences, Russian Academy of Sciences.
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Berlin, L.M., Galyaev, A.A. & Lysenko, P.V. Necessary Extremum Conditions and the Neustadt–Eaton Method in the Time-Optimal Control Problem for a Group of Nonsynchronous Oscillators. Autom Remote Control 85, 543–556 (2024). https://doi.org/10.1134/S0005117924060043
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DOI: https://doi.org/10.1134/S0005117924060043