Grid-Forming Technologies for Offshore Wind Integration

As Australia prepares for large-scale offshore wind deployment, integrating these projects into a grid increasingly dominated by inverter-based resources presents significant technical challenges. Traditional synchronous generation has historically provided system strength, inertia, and fault current services that are now diminishing as thermal plants retire. Offshore wind farms, connected via high-voltage direct current (HVDC) or weak alternating current (AC) networks, exacerbate these issues, leading to risks of instability, curtailment, and constrained operation. This presentation explores the role of grid-forming inverter technologies in enabling offshore wind integration and maintaining system stability. Unlike conventional grid-following inverters, grid-forming inverters can establish voltage and frequency reference points, provide synthetic inertia, and support black-start capability. The discussion includes recent advancements in control algorithms, hybrid solutions combining battery energy storage with offshore wind, and the deployment of synchronous condensers as complementary assets. Through global case studies and emerging Australian trials, the paper evaluates performance benefits such as reduced curtailment, improved fault ride-through, and enhanced resilience in weak grid conditions. It also addresses economic considerations, including cost-benefit analysis of grid-forming solutions versus traditional network reinforcements. Finally, the paper outlines a roadmap for integrating these technologies into Australia’s offshore wind strategy, emphasising collaboration between developers, network operators, and regulators to accelerate adoption.