Summary
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.
Read more Read lessThe steady increase of power flow direction in a HVDC interties due to more and more stringent electricity market requirements push HVDC cables powered by a Line Commutated Converters
(LCC) to an increase of polarity reversals per year. This type of cables is with MIND technology for their intrinsic ability to withstand polarity reversal stress.
With the aim to assess the ability of HVDC MIND cable to a larger number of polarity reversal per year, a specific test protocol has been used. A 500 kV HVDC MIND cable loop with joints and terminations from two Suppliers has been tested in laboratory. Test results are very encouraging highlighting that HVDC MIND cables have an astounded ability to withstand polarity reversals and are able to cope with the more stringent requirements of the evolving electricity market.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B1_11065_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Italy |
| Study committees | |
| File size | 2 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
MARZINOTTO Massimo - TERNA
Keywords
HVDC, MIND cables, slow polarity reversal, LCC technology, power flow reversal
