Authors

Erol Can

Abstract

Underactuated mechanical systems (UMSs) present significant challenges in control design due to limited actuation, nonlinear coupling, and susceptibility to unmatched and time-varying disturbances. Traditional passivity-based methods often assume full state availability and matched disturbances, limiting their applicability in uncertain, sensor-constrained environments. This study proposes a learning-augmented interconnection and damping assignment passivity-based control (iIDA–PBC) framework that enhances robustness and adaptability for UMSs. The approach integrates real-time disturbance estimation using Gaussian Math. Comput. Appl. (GPR) and Math. Comput. Appl. (LSTM) networks, alongside nonlinear observer designs for reconstructing unmeasured actuator states. The overall control architecture preserves the port-Hamiltonian structure while enabling adaptive compensation for unknown external perturbations. Theoretical analysis ensures Math. Comput. Appl. (ISS) under bounded estimation errors. Simulation results on a benchmark underactuated system demonstrate improved disturbance rejection, tracking accuracy, and robustness compared to conventional adaptive and passivity-based controllers. The proposed method is suitable for complex, partially observable systems such as aerial vehicles, autonomous robots, and marine platforms.

Keywords

adaptive control, disturbance observer, gpr, lstm, nonlinear observer, passivity-based control, port-hamiltonian systems, underactuated systems

Citation

  • Journal: Automation and Remote Control
  • Year: 2025
  • Volume: 86
  • Issue: 9-12
  • Pages: 305–321
  • Publisher: Pleiades Publishing Ltd
  • DOI: 10.1134/s0005117925600922

BibTeX

@article{Can_2025,
  title={{Learning-Augmented IDA–PBC for Underactuated Mechanical Systems with Unmeasured Actuator Dynamics and Unmatched Disturbances}},
  volume={86},
  ISSN={1608-3032},
  DOI={10.1134/s0005117925600922},
  number={9-12},
  journal={Automation and Remote Control},
  publisher={Pleiades Publishing Ltd},
  author={Can, Erol},
  year={2025},
  pages={305--321}
}

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References