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Integrity Analysis Inspection and Lifecycle Prediction of Subsea Power Cables | IEEE Conference Publication | IEEE Xplore

Integrity Analysis Inspection and Lifecycle Prediction of Subsea Power Cables


Abstract:

Subsea power cables are critical assets within the distribution and transmission infrastructure of electrical networks. Based on review of historical failure data, we hav...Show More

Abstract:

Subsea power cables are critical assets within the distribution and transmission infrastructure of electrical networks. Based on review of historical failure data, we have discovered that 70% of their failure modes are not monitored by current commercial monitoring systems, which predominately focus on the internal failure modes associated with partial discharge or overheating using online monitoring methods or embedded fibre-optics. In this paper, we proposed a fusion prognostic model for subsea cable lifetime prediction, employing an analytical model which is supported by accelerated aging data. In addition, we presented the preliminary results of our low frequency (LF) sonar analysis of subsea cables with a view to insitu integrity monitoring of cables. Seminal analysis on the echo data allowed us to distinguish cable samples with different types and diameter differentials of 2mm. Future work will focus on the integration and validation of this sonar data into the predictions of a cable's remaining useful life.
Date of Conference: 26-28 October 2018
Date Added to IEEE Xplore: 06 January 2019
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Conference Location: Chongqing, China

I. Introduction

Investment in offshore renewable energy is increasing globally [1]. The potential of offshore wind power in the UK is recognized as one of the best in the world (29 offshore wind farms already exist, representing an installed capacity of 5.1 GW). The UK is planning to eventually derive 20–40 GW of power from offshore wind farms, which equates to an investment of around billion [2].

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