Sliding mode disturbance observer-based the port-controlled Hamiltonian control for a four-tank liquid level system subject to external disturbances

Authors

Xiangxiang Meng, Haisheng Yu, Tao Xu, Herong Wu

Abstract

In this paper, a new port-controlled Hamiltonian(PCH) method based on disturbance observer is proposed considering the presence of disturbance in a four-tank liquid level system. Firstly, the PCH model of the four-tank the liquid level system is established by using PCH principle. secondly, the basic feedback controller is designed by configuring the interconnection structure and damping injection. Thirdly, a nonlinear disturbance observer is designed to suppress the disturbance in the four-tank liquid level system. Finally, the simulation results show that the proposed control strategy has better steady-state performance and robustness than the terminal sliding mode control method.

Citation

• Journal: 2020 Chinese Control And Decision Conference (CCDC)
• Year: 2020
• Volume:
• Issue:
• Pages: 1720–1725
• Publisher: IEEE
• DOI: 10.1109/ccdc49329.2020.9163818

BibTeX

@inproceedings{Meng_2020,
  title={{Sliding mode disturbance observer-based the port-controlled Hamiltonian control for a four-tank liquid level system subject to external disturbances}},
  DOI={10.1109/ccdc49329.2020.9163818},
  booktitle={{2020 Chinese Control And Decision Conference (CCDC)}},
  publisher={IEEE},
  author={Meng, Xiangxiang and Yu, Haisheng and Xu, Tao and Wu, Herong},
  year={2020},
  pages={1720--1725}
}

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References

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