The increasing integration of offshore wind farms into high-voltage AC networks demands robust methodologies to ensure compliance with grid codes.

This presentation focuses on the methodology and practical project experience gained from a comprehensive measurement campaign and model validation for an offshore wind farm connected to the German AC transmission grid according to VDE-AR-N 4130.

We discuss the step-by-step methodology applied, including:

• Design of the measurement campaign: Selection of key grid parameters (frequency, voltage, active/reactive power), placement of measurement devices, and synchronization with grid events.
• Data acquisition and processing: Techniques for high-resolution data collection, filtering, and analysis to capture dynamic grid behavior and disturbances.
• Model development and validation: Simulation models (aggregated and detailed model in DIgSILENT PowerFactory and PSCAD) and their validation and bechmarking against measurement data to ensure accuracy in representing grid interactions, control strategies, and system services.

The presentation will also share key project experiences and lessons learned, such as:

• Challenges in coordinating measurements with grid operators and managing data quality.
• Insights into model validation and the importance of accurate parameterization for reliable simulation results.

By highlighting both the methodological approach and the practical experiences, this presentation aims to provide valuable insights for OEMs, project developer and grid operators who are working on the integration of offshore wind energy into modern power systems.