Page 23 - Innovation in energy management: contribution of railways to sustainable mobility

R.8. Boosting superconductor link technologies

Investment: Nature: Improvement:
To be analysed

Related to:

R.3

A technology that is beginning to be implemented in direct current systems is the use of
superconducting auxiliary cables, and there are already experiences of this use in Japan.
As superconducting cables have low electrical resistance, considerable energy savings
can be achieved, while voltage stability can be increased. This is an advantage in direct
current systems since the voltage drops significantly as the distance from the substation
increases.

This solution could help improve the electrical energy regeneration process if there is not
a train consuming near another that is slowing down. It would be possible to increase the
energy recovered with regenerative braking, including the energy returned to the
external network in traction substations equipped with reversible cells.

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Position paper: Innovation in energy management: contribution of railways to sustainable mobility
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