De-Risking Grid Code Compliance for a 50 MW Grid-Forming BESS

Die Herausforderungen

• Limited flexibility when requirements or controller parameters evolve during development.
• High costs associated with repeated site testing campaigns.
• Long feedback cycles between development, integration, and validation teams.
• Difficulty reproducing severe grid disturbances in a controlled and repeatable manner.
• Increased project risk due to the late discovery of control and integration issues.

Die OPAL-RT-Lösung

• CHIL Testing with HYPERSIM: A comprehensive CHIL platform based on HYPERSIM reproduced demanding grid-code scenarios in a controlled and repeatable laboratory environment.
• Real Hardware Integration: The platform integrated the actual PPC, physical measurement hardware, converter control implementations, and the simulated transmission network.
• High-Fidelity Real-Time Modeling: A detailed switching converter model was developed in HYPERSIM and benchmarked against the real device to accurately capture converter dynamics.
• Automated Testing Workflow: HYPERSIM’s Python API automated grid-code test sequences, scenario configuration, test campaigns, data collection, and compliance reporting.

Die Ergebnisse

• Reduced Technical Risk: Potential control and integration issues were identified earlier, reducing the likelihood of costly late-stage corrections.
• Increased Confidence: Validating the full control architecture under realistic conditions increased confidence in compliance readiness.
• Greater Test Coverage: Scenarios difficult or impossible to reproduce in the field could be executed repeatedly and consistently in the laboratory.
• Accelerated Validation Workflow: HYPERSIM real-time simulation and Python-based automation reduced manual effort and enabled efficient, large-scale test campaigns.
• Enhanced Scalability: The reusable framework can support future grid-forming BESS developments and growing compliance-testing needs.

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