Preprints
https://doi.org/10.5194/wes-2024-61
https://doi.org/10.5194/wes-2024-61
04 Jun 2024
 | 04 Jun 2024
Status: this preprint is currently under review for the journal WES.

Functional Specifications and Testing Requirements of Grid-Forming Offshore Wind Power Plants

Sulav Ghimire, Gabriel M. G. Guerreuro, Kanakesh Vatta Kkuni, Emerson David Guest, Kim Høj Jensen, Guangya Yang, and Xiongfei Wang

Abstract. Throughout the past few years, various transmission system operators (TSOs) and research institutes have defined several functional specifications for grid-forming (GFM) converters via grid codes, white papers, and technical documents. These institutes and organisations also proposed testing requirements for general inverter-based resources (IBRs) and specific GFM converters. This paper initially reviews functional specifications and testing requirements from several sources to create an understanding of GFM capabilities in general. Furthermore, it proposes an outlook of the defined GFM capabilities, functional specifications, and testing requirements for offshore wind power plant (OF WPP) applications from an original equipment manufacturer (OEM) perspective. Finally, this paper briefly establishes the relevance of new testing methodologies for equipment-level certification and model validation, focusing on GFM functional specifications.

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Sulav Ghimire, Gabriel M. G. Guerreuro, Kanakesh Vatta Kkuni, Emerson David Guest, Kim Høj Jensen, Guangya Yang, and Xiongfei Wang

Status: open (until 17 Jul 2024)

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Sulav Ghimire, Gabriel M. G. Guerreuro, Kanakesh Vatta Kkuni, Emerson David Guest, Kim Høj Jensen, Guangya Yang, and Xiongfei Wang
Sulav Ghimire, Gabriel M. G. Guerreuro, Kanakesh Vatta Kkuni, Emerson David Guest, Kim Høj Jensen, Guangya Yang, and Xiongfei Wang

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Short summary
This paper reviews the technical behaviour defined for a specific control method named grid-forming control used in inverter-integrated power generation sources such as wind power plants, solar power plants, and battery energy storage systems. Considering the growing trend of offshore wind power plants, the paper adapts the behaviours into offshore wind power applications, re-classifies them into mandatory, optional, and advanced category, and provides testing methods to assess these behaviours.
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