Qualification and reliability assessment of slow polarity reversal endurance in HVDC MIND cables for enhanced grid flexibility

As part of the ongoing effort to improve the resilience and operational flexibility of the electrical grid integrating as best as possible the high-voltage direct current (HVDC), significant advancements are being pursued in both joint technology and cable stress endurance. This work is focused on HVDC MIND (Mass-Impregnated Non-Draining) cable performance under more frequent slow power reversals and the long-term aging effects caused by such operating conditions.