Development of a robust, HVDC cable prototype with a new insulation material based on alternative XLPE, demonstrating resistance to electrical stress, high thermal stability and functionality after ageing.

Calibrated insulation ageing algorithm for cable life analysis based on space charge phenomena simulation models for standard and newly designed cable systems.

Real-time thermal rating algorithms fine-tuned to predict temperature anomalies and cable capacity based on thermal and ampacity models.

Upgraded fault location systems with DTS and DAS interrogator prototypes, fibre-based vibration monitoring systems for cable connections and terminations and GPS location component for long cable corridors.

Accurate and highly stable online PD monitoring system incorporating a PD analyser software with ageing prediction functionalities and fibre optic-based passive PD sensors.

Innovative Edge Computing infrastructure with improved cybersecurity mechanisms and reduced latency of data transmission.

EasyDC-FOS’s industrial feasibility will be demonstrated through testing sites across France, Denmark, and Norway, validating cable capacity and performance in relevant industrial environments. The DTS, DAS, vibration monitoring system and the Partial Discharge (PD) analyser will be assessed.

Testing
&
Validation

DEMO Validation of the cable insulation operational capacity under high-voltage loads

  • Halden, Norway.

    The test will involve subjecting the insulation system to 1.85 times the rated voltage, while also running currents through the conductor that match or exceed operational loads. The goal is to verify the new cable system’s capability to operate reliably over a 40-year design life, in line with industry standards.

USE CASE 1  Designing a Testbed to validate the health monitoring and fault location techniques in field applications.

  • Øygarden, Norway

    The tests will take place as part of the Øygarden 2 project, a 420kV cable system set for installation in 2025. STATNETT will provide access to a section of the AC underground cable system with approximately 15 cross-bonding cable joint locations that will be monitored to carry out a long-term test.

USE CASE 2 Demonstrate condition monitoring methods in HVDC underground and submarine transition joints.

  • Jutland, Denmark

    The test will showcase advanced condition monitoring methods for HVDC transition joints in both underground and submarine settings, utilizing Denmark’s COBRAcable, a 320 kV, 700 MW HVDC interconnector linking Denmark and the Netherlands. Sensors will monitor the cable using previously developed technologies to validate the system’s long-term DC performance.

This project has received funding from the European Union’s Horizon Europe research and innovation programme under grant agreement 101172806.

Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or European Commission. Neither the European Union nor the granting authority can be held responsible for them.

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