4.4 Article

Learning feedback Nash strategies for nonlinear port-Hamiltonian systems

期刊

INTERNATIONAL JOURNAL OF CONTROL
卷 96, 期 1, 页码 201-213

出版社

TAYLOR & FRANCIS LTD
DOI: 10.1080/00207179.2021.1986233

关键词

Port-Hamiltonian systems; noncooperative differential game; Hamilton-Jacobi-Bellman equation; feedback Nash equilibrium

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This paper presents an adaptive control strategy for multi-player noncooperative differential games by extending a single-player feedback Nash strategy and using the Hamiltonian of the port-Hamiltonian system. Numerical simulations demonstrate the effectiveness of the proposed control laws.
This paper presents an adaptive control strategy for solving multi-player noncooperative differential games with dynamics modelled as general nonlinear input-state-output port-Hamiltonian systems. The proposed controller is obtained by extending an existing single-player feedback Nash strategy to N players and by using the Hamiltonian of the port-Hamiltonian system as an admissible control-Lyapunov function for each player. Necessary and sufficient conditions for the stability of the resulting controlled system are provided by employing Lyapunov stability theory. Furthermore, the N player feedback strategy is extended by adaptively weighting the individual value functions to ensure convergence to the Nash solution. Finally, numerical simulations demonstrate the effectiveness of the proposed explicit control laws.

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