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October 12, 2026
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Субоптимальное управление нелинейным объектом, линеаризуемым обратной связью

Известия РАН. Теория и системы управления. 2011. Т. 50. № 3. С. 13–22.
Afanasiev V., Orlov P.

An optimal control problem is formulated for a class of nonlinear systems for which there exists a coordinate representation (diffeomorphism) transforming the original system into a system with a linear main part and a nonlinear feedback. In this case the coordinate transformation significantly changes the form of original quadratic functional. The penalty matrices become dependent on the system state. The linearity of the structure of the transformed system and the quadratic functional make it possible to pass over from the Hamilton–Jacoby–Bellman equation to the Riccati type equation with state-dependent parameters upon the control synthesis. Note that it is impossible to solve the obtained form of Riccati equation analytically in the general case. It is necessary to approximate the solution; this approximation is realized by numerical methods using symbolic computer packages or interpolation methods. In the latter case, it is possible to obtain the suboptimal control. The presented example illustrates the application of the proposed control method for the feedback linearizable nonlinear system.

Priority areas: mathematics
Language: Russian
Full text
Keywords: нелинейные системыnonlinear systemssuboptimal controlдинамические системыfeedback linearizationоптимальное и субоптимальное управление
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