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Decentralized Control of Continuous-Time Interconnected Nonlinear Systems

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Adaptive Dynamic Programming with Applications in Optimal Control

Part of the book series: Advances in Industrial Control ((AIC))

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Abstract

In this chapter, by using neural network (NN)-based online learning optimal control approach, a decentralized control strategy is developed to stabilize a class of continuous-time large-scale interconnected nonlinear systems . It is proven that the decentralized control strategy of the overall system can be established by adding appropriate feedback gains to the optimal control laws of the isolated subsystems . Then, an online policy iteration (PI) algorithm is developed to solve the Hamilton–Jacobi–Bellman equations related to the optimal control problem. By constructing a set of critic NNs, the cost functions can be obtained by NN approximation, followed by the control laws. Furthermore, as a generalization, an NN-based decentralized control law is developed to stabilize the large-scale interconnected nonlinear systems using an online model-free integral PI algorithm. The model-free PI approach can solve the decentralized control problem for large-scale interconnected nonlinear systems with unknown dynamics. Finally, two simulation examples are provided to illustrate the effectiveness of the present decentralized control scheme.

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Correspondence to Derong Liu .

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Liu, D., Wei, Q., Wang, D., Yang, X., Li, H. (2017). Decentralized Control of Continuous-Time Interconnected Nonlinear Systems. In: Adaptive Dynamic Programming with Applications in Optimal Control. Advances in Industrial Control. Springer, Cham. https://doi.org/10.1007/978-3-319-50815-3_10

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  • DOI: https://doi.org/10.1007/978-3-319-50815-3_10

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-50813-9

  • Online ISBN: 978-3-319-50815-3

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