The Design of a Fusion Prognostic Model and Health Management System for Subsea Power Cables

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Subsea power cables are critical infrastructure for
the continuity of energy supply and are a key enabler to the
global growth in offshore renewable energy generation. Capital
projects for long range, greater than 60km distances, for
transmission networks can cost in excess of £1billion. In this
paper, we have extensively reviewed the data within academia
and industry with respect to the practices and challenges of
subsea power cable management. With a detailed focus on 15
years of historical cable failure data from the UKs largest owner
of subsea power cables, we identified that existing commercial
monitoring systems do not monitor about 70% of subsea power
cable failure modes. To overcome the challenges this represents
to delivering cost effective and timely intervention to subsea
power cables, we present a fusion prognostic model to enable
predictive forecast on cable failure modes, include location and
rates of degradation.
In our model, we incorporate physical models to simulate the
process where common cable failure modes lead to cable damage,
such as abrasion and corrosion. In addition, we implemented
multi-physics modelling techniques to model cable displacement
and scouring, taking into consideration different environmental
condition profiles. We also demonstrate how new sensing
technologies can be integrated into this sensor agnostic model in
order to enhance lifetime prediction accuracy. An operational
decision support system is implemented within this work to
integrate these different physical failure models, using a fusion
model approach which integrates in-situ inspection data from
sonar, autonomous underwater vehicle (AUV) inspection mission
planning, and data analysis results into a holistic subsea cable
remaining useful life prediction capability.
Original languageEnglish
Title of host publicationOCEANS 2019 Seattle Online Proceedings
Publication statusAccepted/In press - 12 Jul 2019
EventOCEANS 2019 - Seattle, Seattle, United States
Duration: 27 Oct 201931 Oct 2019


ConferenceOCEANS 2019
CountryUnited States
Internet address


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