Optimisation of Deep Water Offshore Wind Systems

不断增长的能源需求与清洁能源生产之间的冲突是我们今天面临的挑战之一。该博士研究项目旨在解决海上可再生能源（ORE）优化和弹性的挑战。ORE被认为是一项很好的投资，但由于在深水中设计海上风力涡轮机（OWT）以及在未经调查的海底地面上建立基础所涉及的不确定性，目前建设新的ORE基础设施的计划受到阻碍。浮式海上风力涡轮机（FOWTs）是解决深水中成本增加和基础问题的一种解决方案。它们还具有更大的能源潜力，更多的安装空间，并且与陆上风力涡轮机相比，它们通常具有更少的限制，例如视觉限制和噪音影响。拟议的研究旨在为fowt开发一种集成设计方法，以产生更具弹性和鲁棒性的设计。详细的环境负荷评估与先进的耦合计算模型相结合，将提供对复杂的空气-水-弹性耦合响应的理解，从而优化未来的方案。此外，还将研究内波的影响，以预测对fowt稳定性的影响。因此，该项目的目标首先是通过使用先进的耦合计算模型，评估平台上的载荷，例如系泊、风、表面和内波的影响，为深水海上风电系统开发更具弹性和坚固性的设计。其次，通过使用适当的CFD软件对fowt进行模拟，并开发MATLAB代码来优化fowt的功率输出，对单个fowt和阵列进行优化，以加速大规模FOW农场的安装。第三个目标是找到一个现实世界的解决方案，通过将波浪能量转换器（WECs）附加到fowt的浮动平台上，来创建更高效的矿石。最初的步骤将包括研究fowt的载荷，特别是内部波，并找到合适的CFD软件来分析研究合作伙伴提供的实验室结果数据。

The conflict between increasing energy demand and clean energy generation is one of the challenges we face today. This PhD research project aims to address the challenge of optimisation and resilience for Offshore Renewable Energy (ORE). ORE is recognised as a good investment, but current plans for building new ORE infrastructure is held back due to the uncertainties involved with designing offshore wind turbines (OWT) in deeper waters and with foundations in un-investigated subsea ground. Floating offshore wind turbines (FOWTs) are a solution to the increasing costs and foundation issues within deeper water. They also have a greater energy potential, more installation space available and they generally have less restrictions than onshore wind turbines, such as visual constraints and noise impacts.The proposed research aims to develop an integrated design methodology for FOWTs that yields more resilient and robust designs. The detailed environmental load assessment combined with advanced coupled computational modelling will provide an understanding of the complex aero-hydro-elastic coupled response enabling the optimisation of future schemes. Furthermore, the effects of internal waves will be investigated to predict the impact on the stability of the FOWTs.The aims of this project therefore are firstly to develop more resilient and robust designs for deep water offshore wind systems by assessing the loads on the platforms, such as the impacts of moorings, wind, surface and internal waves, using advanced coupled computational modelling. Secondly, individual FOWTs and arrays will be optimised to accelerate the installation of large-scale FOW farms by using appropriate CFD software to simulate FOWTs and developing a MATLAB code to optimise the power output of FOWTs. And the third aims is to find a real world solution to create significantly more efficient OREs by attaching wave energy converters (WECs) to the floating platforms of FOWTs.The initial steps will involve the investigation of the loads on FOWTs, especially the internal waves, and finding an appropriate CFD software to analyse data from laboratory results provided by research partners.