Seismic Design of Offshore Wind Turbines: Good, Bad and Unknowns
Seismic Design of Offshore Wind Turbines: Good, Bad and Unknowns
复制标题
海上风力发电机的抗震设计：好的、坏的和未知的
作者：
S. Bhattacharya;S. Biswal;M. Aleem;Sadra Amani;A. Prabhakaran;G. Prakhya;D. Lombardi;Harsh K. Mistry
大型海上风电场是相对较新的基础设施，正在部署在地震多发地区。海上风电场包括海上风力涡轮机（OWT）和电站平衡（BOP）设施，如阵列间和输出电缆、电网连接等。OWT结构可以是接地系统（刚性锚定到海底）或浮动系统（带有张力腿或悬链线电缆）。OWT是由具有头重脚轻的质量的细长塔架制成的动态敏感结构，称为机舱，其上连接有重旋转质量（轮毂和叶片）。这些结构，除了可变的环境风和波浪载荷，也可能受到地震区地震相关的危害。可能影响海上风电场的地震灾害是断层位移、地震震动、地下液化、海底滑坡、海啸效应及其组合。在现行的实践规范中没有明确提到OWT的抗震设计程序。本文的目的是讨论海上风电场和风力涡轮机结构的分析和设计中与地震相关的挑战。不同类型的接地和浮动系统被认为是评估地震相关的影响。然而，重点是张力腿平台（TLP）型浮动风力涡轮机。还确定了未来的研究需求。
Large scale offshore wind farms are relatively new infrastructures and are being deployed in regions prone to earthquakes. Offshore wind farms comprise of both offshore wind turbines (OWTs) and balance of plants (BOP) facilities, such as inter-array and export cables, grid connection etc. An OWT structure can be either grounded systems (rigidly anchored to the seabed) or floating systems (with tension legs or catenary cables). OWTs are dynamically-sensitive structures made of a long slender tower with a top-heavy mass, known as Nacelle, to which a heavy rotating mass (hub and blades) is attached. These structures, apart from the variable environmental wind and wave loads, may also be subjected to earthquake related hazards in seismic zones. The earthquake hazards that can affect offshore wind farm are fault displacement, seismic shaking, subsurface liquefaction, submarine landslides, tsunami effects and a combination thereof. Procedures for seismic designing OWTs are not explicitly mentioned in current codes of practice. The aim of the paper is to discuss the seismic related challenges in the analysis and design of offshore wind farms and wind turbine structures. Different types of grounded and floating systems are considered to evaluate the seismic related effects. However, emphasis is provided on Tension Leg Platform (TLP) type floating wind turbine. Future research needs are also identified.
影响因子：
4
作者：
Ahmer Ali;R. Risi;A. Sextos
通讯作者：
Ahmer Ali;R. Risi;A. Sextos
影响因子：
4
作者：
De Risi, Raffaele;Bhattacharya, Subhamoy;Goda, Katsuichiro
通讯作者：
Goda, Katsuichiro