Empowering Offshore Wind With Es-Statcom For Stability Margin Improvement and Provision of Grid-Forming Capabilities
Artikel i vetenskaplig tidskrift, 2024

Offshore wind power plants (WPPs) play a pivotal role in achieving a CO2-neutral electricity sector. However, their grid connection presents significant challenges and costs. High-voltage alternating current (HVAC) offers a cost-effective solution, but it may necessitate the installation of a static synchronous compensator (STATCOM) at the onshore bus to ensure stability and compliance with connection requirements. Integrating energy storage into the STATCOM (ES-STATCOM) enables the provision of ancillary services, such as inertial response and frequency support, which require active power. This paper utilizes the generalized Nyquist criterion to demonstrate that operating the ES-STATCOM with grid-forming control enhances the stability margin of the grid-connected WPP when compared to operating it with grid-following control. Furthermore, it illustrates through network frequency perturbation (NFP) plots that the overall WPP, comprising grid-following wind turbines and a grid-forming ES-STATCOM, imparts grid-forming behavior at the grid-connection point.

Grid-forming converter


NFP plot

offshore wind power plant

small-signal stability


Anant Narula

Chalmers, Elektroteknik, Elkraftteknik

Paul Imgart

Chalmers, Elektroteknik, Elkraftteknik

Massimo Bongiorno

Chalmers, Elektroteknik, Elkraftteknik

Mebtu Bihonegn Beza

Chalmers, Elektroteknik, Elkraftteknik

Electric Power Systems Research

0378-7796 (ISSN)

Vol. 234


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Annan elektroteknik och elektronik



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