Multiphysics Finite Element Modelling of the Fault Response and Recovery of First Generation Superconducting Cables

Lead Research Organisation: University of Southampton
Department Name: Electronics and Computer Science

Abstract

Understanding the fault response of superconducting cables is important to their wider adoption. In particular, it is useful to understand how the cable's rating and spatial design would influence both its fault response and time of recovery after a high through fault overcurrent in a particular grid. To achieve that, reliable modelling techniques must be established. A detailed electromagnetic and thermal modelling of a cable will be performed in COMSOL. This modelling will be complemented by a coupled sample power grid model in MATLAB. So far, a successful numerical model of magnetic field dependent behaviour of a Bi-2223 superconducting tape has been demonstrated. This model has been used to propose and verify two homogenization techniques for Bi-2223 tapes that decrease the computation time by simplifying the geometry. Future work will include introducing a thermal model and scaling the problem to cable level.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509747/1 01/10/2016 30/09/2021
1922232 Studentship EP/N509747/1 29/09/2016 30/09/2019 Alexander Petrov
 
Description The work has revisited and re-enabled the use of specialist modelling techniques to predict the behaviour of power cables, made of low-loss superconductors. These techniques allow for a different level of understanding to what has been applied previously. Perhaps more importantly, the work done reports the means to recreate these techniques and implement them in one's own work.

From a personal perspective, the skills developed the most include research and technical writing, as well as use of specialist software to develop realistic simulations. An in-depth understanding of superconductor behaviour must also be mentioned, as it is one of the most valuable outcomes for the researcher.
Exploitation Route The use of the findings is most likely to be found useful by the power industry where they would be used to fuel a better understanding of the given superconducting system prior to the manufacturing of a prototype. Further work can be carried out by both academia and industry to validate the findings beyond what has already been done, and to discover more uses or limitations.
Sectors Energy