A model-free deep integral policy iteration structure for robust control of uncertain systems

Ding Wang, Ao Liu and Junfei Qiao

International Journal of Systems Science, 2024, vol. 55, issue 8, 1571-1583

Abstract: In this paper, we develop an improved data-based integral policy iteration method to address the robust control issue for nonlinear systems. Combining multi-step neural networks with pre-training, the condition of selecting the initial admissible control policy is relaxed even though the information of system dynamics is unknown. Based on adaptive critic learning, the established algorithm is conducted to attain the optimal controller. Then, the robust control strategy is derived by adding the feedback gain. Furthermore, the computing error is considered during the process of implementing matrix inverse operation. Finally, two examples are presented to verify the effectiveness of the constructed algorithm.

Date: 2024
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DOI: 10.1080/00207721.2024.2312886

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