Port-Hamiltonian based Optimal Power Flow algorithm for multi-terminal DC networks

Authors

Ernest Benedito, Dunstano del Puerto-Flores, Arnau Dòria-Cerezo, Jacquelien M.A. Scherpen

Abstract

In this paper an algorithm for solving the Optimal Power Flow problem for multi-terminal DC networks based on the gradient method is proposed. The aim is seeking the optimal point subject to voltage, current and power constraints. The algorithm is described by a continuous-time port-Hamiltonian model, and the inequality constrains are included by the use of barrier functions. The dynamics of the algorithm is studied and stability conditions are obtained. Finally, the method is used for the offshore wind integration grid in the North Sea and the interconnection with the network dynamics is tested by means of numerical simulations.

Keywords

Optimal power flow; Port-Hamiltonian systems; Gradient method; DC networks; Cyclic networks

Citation

• Journal: Control Engineering Practice
• Year: 2019
• Volume: 83
• Issue:
• Pages: 141–150
• Publisher: Elsevier BV
• DOI: 10.1016/j.conengprac.2018.10.018

BibTeX

@article{Benedito_2019,
  title={{Port-Hamiltonian based Optimal Power Flow algorithm for multi-terminal DC networks}},
  volume={83},
  ISSN={0967-0661},
  DOI={10.1016/j.conengprac.2018.10.018},
  journal={Control Engineering Practice},
  publisher={Elsevier BV},
  author={Benedito, Ernest and del Puerto-Flores, Dunstano and Dòria-Cerezo, Arnau and Scherpen, Jacquelien M.A.},
  year={2019},
  pages={141--150}
}

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