Abstract
A quadratic regulator problem for a class of nonlinear systems is considered in which the control cost is multiplied by a small parameter, which becomes a so-called cheap control problem. Conditions are found under which the minimum cost becomes zero (perfect regulation) and the linear part in the optimal control law becomes dominant as the small parameter goes to zero. Near optimality of control laws truncated from the optimal control law in series form is also found.
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References
Lukes, D. L.,Optimal Regulation of Nonlinear Dynamical Systems, SIAM Journal on Control, Vol. 7, pp. 75–100, 1969.
Moylan, P. J., andAnderson, B. D. O.,Nonlinear Regulator Theory and an Inverse Optimal Control Problem, IEEE Transactions on Automatic Control, Vol. AC-18, pp. 460–465, 1973.
Cebuhar, W. A., andCostanza, V.,Approximation Procedures for the Optimal Control of Bilinear and Nonlinear Systems, Journal of Optimization Theory and Applications, Vol. 43, pp. 615–627, 1984.
Kwakernaak, H., andSivan, R.,The Maximally Achievable Accuracy of Linear Optimal Regulators and Linear Optimal Filters, IEEE Transactions on Automatic Control, Vol. AC-17, pp. 79–85, 1972.
Schmacher, J. M.,Almost Stabilizability Subspaces and High Gain Feedback, IEEE Transactions on Automatic Control, Vol. AC-29, pp. 620–629, 1984.
Grasman, J.,On a Class of Optimal Control Problems with an Almost Cost-Free Solution, IEEE Transactions on Automatic Control, Vol. AC-27, pp. 441–445, 1982.
O'Malley, R. E. Jr., andJameson, A.,Singular Perturbations and Singular Arcs, Part 1, IEEE Transactions on Automatic Control, Vol. AC-20, pp. 218–226, 1975.
Francis, B. A.,The Optimal Linear-Quadratic Time-Invariant Regulator with Cheap Control, IEEE Transactions on Automatic Control, Vol. AC-24, pp. 616–621, 1979.
Sannuti, P., andWason, H. S.,Multiple Time-Scale Decomposition in Cheap Control Problems—Singular Control, IEEE Transactions on Automatic Control, Vol. AC-30, pp. 633–644, 1985.
Saberi, A., andKhalil, H.,Stabilization and Regulation of Nonlinear Singularly Perturbed Systems—Composite Control, IEEE Transactions on Automatic Control, Vol. AC-30, pp. 739–747, 1985.
Kokotovic, P. V.,Recent Trends in Feedback Design: an Overview, Automatica, Vol. 21, pp. 225–236, 1985.
Steinberg, A., andCorless, M.,Output Feedback Stabilization of Uncertain Dynamical Systems, IEEE Transactions on Automatic Control, Vol. AC-30, pp. 1025–1027, 1985.
Laub, A. J., andBailey, F. N.,Suboptimality Bounds and Stability in the Control of Nonlinear Dynamic Systems, IEEE Transactions on Automatic Control, Vol. AC-21, pp. 396–399, 1976.
Kleinman, D. L.,On an Iterative Technique for Riccati Equation Computations, IEEE Transactions on Automatic Control, Vol. AC-13, pp. 114–115, 1968.
Kirk, D. E.,Optimal Control Theory, An Introduction, Prentice-Hall, Englewood Cliffs, New Jersey, 1970.
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Communicated by G. Leitmann
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Lee, J.T., Bien, Z.N. A quadratic regulator with cheap control for a class of nonlinear systems. J Optim Theory Appl 55, 289–302 (1987). https://doi.org/10.1007/BF00939086
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DOI: https://doi.org/10.1007/BF00939086