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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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https://doi.org/10.5194/wes-2020-34
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2020-34
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  17 Mar 2020

17 Mar 2020

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A revised version of this preprint is currently under review for the journal WES.

Grid-forming control strategies for blackstart by offshore wind farms

Anubhav Jain1, Jayachandra N. Sakamuri2, and Nicolaos A. Cutululis1 Anubhav Jain et al.
  • 1DTU Wind Energy, Technical University of Denmark, 4000 Roskilde, Denmark
  • 2Vattenfall A/S, 6000 Kolding, Denmark

Abstract. Large-scale integration of renewable energy sources with power-electronic converters is pushing the power system closer to its dynamic stability limit. This has increased the risk of wide-area blackouts. Thus, the changing generation profile in the power system necessitates the use of alternate sources of energy such as wind power plants, to provide blackstart services in the future. This however, requires grid-forming and not the traditionally prevalent grid-following wind turbines. In this paper, four different grid-forming control strategies have been implemented in an HVDC-connected wind farm. A simulation study has been carried out to test the different control schemes for the different stages of energization of onshore load by the wind farm. Their transient behaviour during transformer inrush, converter pre-charge and de-blocking, and onshore block-load pickup, has been compared to demonstrate the blackstart capabilities of grid-forming wind power plants for early participation in power system restoration.

Anubhav Jain et al.

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Anubhav Jain et al.

Anubhav Jain et al.

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Latest update: 08 Aug 2020
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Short summary
This paper provides an understanding of grid-forming control of wind turbines that can enable their blackstart & islanding functionalities. Four control strategies have been tested with the aim to compare their capability to deal with the energization transients of an HVDC-connected offshore wind power plant, while maintaining stable offshore voltage & frequency. This study presents a step forward in overcoming wind turbine control challenges to provide blackstart/restoration ancillary services.
This paper provides an understanding of grid-forming control of wind turbines that can enable...
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