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Finite-Approximation-Error-Based Optimal Control Approach for Discrete-Time Nonlinear Systems

Liu, Derong, Wei, Qinglai·2013·IEEE Transactions on Cybernetics

Abstract

In this paper, a new iterative adaptive dynamic programming (ADP) algorithm is developed to solve optimal control problems for infinite-horizon discrete-time nonlinear systems with finite approximation errors. The idea is to use an iterative ADP algorithm to obtain the iterative control law that makes the iterative performance index function reach the optimum. When the iterative control law and the iterative performance index function in each iteration cannot be accurately obtained, the convergence conditions of the iterative ADP algorithm are obtained. When convergence conditions are satisfied, it is shown that the iterative performance index functions can converge to a finite neighborhood of the greatest lower bound of all performance index functions under some mild assumptions. Neural networks are used to approximate the performance index function and compute the optimal control policy, respectively, for facilitating the implementation of the iterative ADP algorithm. Finally, two simulation examples are given to illustrate the performance of the present method.

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Metadata

Authors
Liu, D., & Wei, Q.
Venue
IEEE Transactions on Cybernetics
Published
2013-04
Volume
43
Issue
2
Pages
779-789
ISSN
  • 2168-2267 (ISSN-L)
  • 2168-2275
OpenAlex
W1983089547
Cited by
304
References
4
FWCI
38.69
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Finite-Approximation-Error-Based Optimal Control Approach for Discrete-Time Nonlinear Systems. https://app.cochat.ai/papers/10.1109/tsmcb.2012.2216523
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Liu, D., & Wei, Q. (2013). Finite-Approximation-Error-Based Optimal Control Approach for Discrete-Time Nonlinear Systems. IEEE Transactions on Cybernetics. https://doi.org/10.1109/tsmcb.2012.2216523

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