Holistic Subsea Cable Fault Detection & Condition Monitoring System

海上风力发电比陆上风力发电面临更恶劣的环境，这可能会对关键基础设施的可靠性造成更大的挑战。海上风电场经济成功的基础资产之一是海底电缆基础设施。这包括阵列内电缆和出口电缆，如果这些电缆发生故障，将因无法出口发电而导致收入大幅损失，以及监管机构施加的处罚。自2013年以来，由于海底电缆故障，海上发电量损失了8太瓦时，给运营商造成了10亿英镑的损失。在海上风电行业，80%的保险索赔总成本归因于电缆故障，而海底电缆支出仅占新风电场资本成本的9%。因此，需要更好的电缆或增强的故障预测和监测系统，以减少可检测到的电缆故障的数量，并最大限度地减少故障时的损失发电。目前，没有一个现有系统能够在检测到故障时准确识别、定位和提供缓解措施。SmartCable将为海底电缆状况监测带来根本解决方案，Proserv将整合众多最先进的监测系统和它们生成的数据，首次为运营商提供海底电缆健康状况的完整图景，以便进行预测性维护，减少故障并优化维修计划。这将使电缆监测系统首次能够部署在新的和现有的海上风力发电场的海底电缆上。将由Proserv开发的SmartCable系统将作为一个决策支持平台，以获取丰富的数据--来自海底光缆光纤和主芯的温度、机电、局部放电和声学数据--并将其集中关联，开发新的通用数据语言，并应用定制的机器学习算法，向业主和运营商提供关于电缆状况的可行情报，并在故障发生之前尽早检测到运行故障。这将能够有效地预测电缆故障，允许采取应急行动来降低故障风险和计划维修。在莱文茅斯示范涡轮机(LDT)演示期间对性能指标和系统数据进行分析，将允许在海上环境中验证系统的长期健壮性和稳定性，并在商业化之前进行优化。

Power generation from offshore wind is subject to harsher environments than onshore wind, which can cause greater challenges for the reliability of critical infrastructure. One asset that is fundamental to the economic success of an offshore wind farm is the subsea cable infrastructure. This includes intra-array and export cables, failure of which will lead to significant loss of revenues through failure to export generated power, as well as penalties imposed by regulators. Since 2013, 8 TWh of electricity generated offshore has been lost due to subsea cable faults resulting in £\>1bn of losses for operators. In the offshore wind industry, 80% of the total cost of insurance claims are attributed to cable failures, while subsea cable expenditure only accounts for 9% of the capital cost of a new windfarm. Therefore, better cables or enhanced failure prognostics and monitoring systems are required to reduce the number of detectable cable failures and minimise the lost generation in the event of a fault. At present, no existing system is capable of accurately identifying, locating and offering mitigation in the event that a fault is detected.SmartCable will bring a radical solution to subsea cable condition monitoring, with Proserv integrating numerous state-of-the-art monitoring systems and the data they generate to provide operators with, for the first time, a complete picture of subsea cable heath for predictive maintenance with cost savings associated with reduced failures, and optimised repair scheduling.This will enable for the first time a cable monitoring system that can be deployed on subsea cabling for new and existing offshore wind farms. The SmartCable system, to be developed by Proserv will act as a decision-enabling platform to take the wealth of data -- temperature, electro-mechanical, partial discharge and acoustic data from the subsea cable fibre optic and main cores -- and correlate it centrally, developing a new common data language and applying bespoke machine learning algorithms to provide actionable intelligence to owner-operators on cable condition, and detect an operational fault at the earliest possible stage, long before a failure will take place. This will enable effective prediction of cable failure, allowing for contingency actions to be taken to reduce the risk of failure and plan for repairs.Analysis of the performance metrics and system data during a demonstration at Levenmouth Demonstration Turbine(LDT)will allow the long-term robustness and stability of the system to be validated in an offshore environment and optimised prior to commercialisation.