Authors

Nahla Khraief Haddad, Ahmed Chemori, Safya Belghith

Abstract

Improving the robustness, vis-à-vis matched input disturbances of interconnection and damping assignment, passivity based control (IDA-PBC) for a class of underactuated mechanical systems is addressed in this paper. The characterised class of systems is described by a Port Controlled Hamiltonian (PCH) model which represents another alternative to the classical Euler–Lagrange models for which IDA–PBC yields a smooth stabilising controller. Our main contribution consists of combining the so-called IDA-PBC controller with an adaptive control technique. Some sufficient stability conditions on matched input disturbances are given. In order to estimate the stability and performance robustness of both controllers, a stochastic robustness analysis was used. Indeed, we used the Monte Carlo simulation (MCS) based on uncertainties to analyse the behaviour of the closed-loop system. The comparison of the stability robustness between the classical IDA-PBC controller and the proposed one is then provided. As an illustration, we proposed to revisit the application of IDA-PBC controller to the inertia wheel inverted pendulum in the presence of matched disturbances. Simulation and real-time experimental results mirror the theoretical results and prove the efficiency of the proposed controller.

Citation

  • Journal: International Journal of Control
  • Year: 2018
  • Volume: 91
  • Issue: 12
  • Pages: 2657–2672
  • Publisher: Informa UK Limited
  • DOI: 10.1080/00207179.2017.1331378

BibTeX

@article{Haddad_2017,
  title={{Robustness enhancement of IDA-PBC controller in stabilising the inertia wheel inverted pendulum: theory and real-time experiments}},
  volume={91},
  ISSN={1366-5820},
  DOI={10.1080/00207179.2017.1331378},
  number={12},
  journal={International Journal of Control},
  publisher={Informa UK Limited},
  author={Haddad, Nahla Khraief and Chemori, Ahmed and Belghith, Safya},
  year={2017},
  pages={2657--2672}
}

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References