Abstract
Different methods of solution continuation for the system with discontinuous control and sliding modes are discussed in the paper. First, the systems with one discontinuity surface are discussed when the right-hand side of differential equation can take two values only for the selected state x and time t. According to Filippov method the right-hand side of sliding mode equation can be found in convex hull of these two values. Other five methods of solution continuation are developed under additional assumption about values of control on discontinuity surface. They led to sliding mode equations different from Filippov’s equations both for affine systems and systems nonlinear with respect to control. However, if we apply Filippov method based on the procedure of passing over to a convex hull considering additional assumptions of each method then the sliding mode equation is the same as for this method.
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References
Aizerman, M. A., & Pyatnitskii, Y. S. (1974). Foundations of the theory of discontinuous systems. II. Automation and Remote Control, 35(8), 39–61 (in Russian).
André, J., & Seibert, P. (1956). Über stückweise lineare differentialgleichungen, die bei regelungsproblemen auftreten I, II. Archiv der Mathematik. 7, 148–156, 157–164. https://doi.org/10.1007/BF01899832
Barbashin, Y. (1967). Introduction to stability theory. Nauka.
Cortes, J. (2008). Discontinuous dynamical systems. IEEE Control Systems Magazine, 28(3), 36–73.
Filippov, A. (1960). Differential Equations with discontinuous right-hand side, Set of math. papers, Publisher MGU, 51(93), #1, 99–128 (in Russian).
Filippov, A. (1961). Application of the theory of differential equations with discontinuous right-hand sides to non-linear problems in automatic control. In Proceedings of the First International Congress of the International Federation of Automatic Control, Moscow, 1960 (vol. II, pp. 923–925). Butterworths.
Filippov, A. F. (1988). Differential Equations with Discontinuous Right-hand Sides. Kluwer Academic Publishers.
Gelig, A., Leonov, G., & Yakubovich, V. (1978). Stability of nonlinear systems with non-unique equilibrium point. Nauka. (in Russian).
Jeffrey, M. R., Seidman, T. I., Teixeira, M. A., & Utkin, V. I. (2022). Into higher dimensions for nonsmooth dynamical systems. Phisica D: Nonlinear Phenomena, 434, 133222.
Leonov, G. A., Kuznetsov, N. V., Kiseleva, N. A., & Mokaev, R. N. (2017). Global problems for differential inclusions. Kalman and Vyshnegradskii problems and Chua circuits. Differential Equations, 53, 1671–1702.
Neimark, Y. I. (1957). On sliding process in control relay systems. Automation and Remote Control, 18(1), 27–33 (in Russian).
Neimark, Y. (1961). Discussion of the paper by A. Filippov. In Proceedings of the First International Congress of the International Federation of Automatic Control, Moscow, 1960 (vol. II, pp. 926–927). Butterworths.
Polyakov, A., & Fridman, L. (2014). Stability notion and Lyapunov functions for sliding mode control systems. Journal of Franklin Institute, 351(4), 1831–1865.
Rockafeller, R. T., & Wets, R. J. B. (1998). Variational analysis. Berlin Heidelberg: Springer-Verlag, p. 117.
Tsypkin, Y. (1956). Theory of relay automatic regulation. State Publisher of Engineering Literature (in Russian).
Utkin, V. I. (1971). Concerning equations of sliding motions in discontinuous systems I. Automation and Remote Control, 32(12), 1897–1907 (in Russian).
Utkin, V. I. (1972). On sliding mode equations in discontinuous systems II. Automation and Remote Control, 32(2), 211–219 (in Russian).
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Utkin, V. Brief Comments for Doubts in Filippov Method. J Control Autom Electr Syst 33, 1628–1632 (2022). https://doi.org/10.1007/s40313-022-00952-9
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DOI: https://doi.org/10.1007/s40313-022-00952-9