Authors

Walter Gil-Gonzalez, Alejandro Garces, Olav B. Fosso

Abstract

This paper presents a passivity-based control method for a small hydro-power system that consists of a permanent magnet synchronous generator (PSMG) connected to the grid through a back-to-back converter. Nonlinear models of the hydraulic, mechanical, and electrical parts of the small hydro-power system are considered. Two approaches in the realm of passivity-based control are implemented, namely, standard passivity-based control and PI-passive. These controls consider the intrinsic characteristics of the model, which has a port-Hamiltonian (pH) structure with a small hydro-power system in open-loop. The purpose is to design a control law with passive output which ensures asymptotic stability for closed-loop operation in the sense of Lyapunov’s theory. The paper is practically oriented, and hence, the proposed controllers are tested and compared with a conventional approach, in a 13.2 kV distribution feeder. The proposed controllers have been assessed and compared with a classical PI controller considering steady state and transient behaviors in small hydro-power plants (SHPs). Simulation results show that the proposed methodology guarantees stability and offers better dynamical performance.

Citation

  • Journal: IEEE Access
  • Year: 2020
  • Volume: 8
  • Issue:
  • Pages: 153001–153010
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • DOI: 10.1109/access.2020.3018027

BibTeX

@article{Gil_Gonzalez_2020,
  title={{Passivity-Based Control for Small Hydro-Power Generation With PMSG and VSC}},
  volume={8},
  ISSN={2169-3536},
  DOI={10.1109/access.2020.3018027},
  journal={IEEE Access},
  publisher={Institute of Electrical and Electronics Engineers (IEEE)},
  author={Gil-Gonzalez, Walter and Garces, Alejandro and Fosso, Olav B.},
  year={2020},
  pages={153001--153010}
}

Download the bib file

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