Seismic Design of Offshore Wind Turbines: Good, Bad and Unknowns
| Autor: | Harsh K. Mistry, Suryakanta Biswal, Athul Prabhakaran, Muhammed Aleem, Domenico Lombardi, Subhamoy Bhattacharya, Sadra Amani, Ganga Kasi V. Prakhya |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
seismic design
offshore wind turbines tension leg platform seismic hazards ground motion analysis Technology Control and Optimization 0211 other engineering and technologies Energy Engineering and Power Technology 020101 civil engineering Floating wind turbine 02 engineering and technology Turbine 0201 civil engineering Seismic analysis Catenary Electrical and Electronic Engineering Engineering (miscellaneous) 021101 geological & geomatics engineering Tension-leg platform Renewable Energy Sustainability and the Environment Building and Construction Offshore wind power Tower Geology Energy (miscellaneous) Marine engineering Submarine landslide |
| Zdroj: | Energies, Vol 14, Iss 3496, p 3496 (2021) Energies; Volume 14; Issue 12; Pages: 3496 Bhattacharya, S, Biswal, S, Aleem, M, Amani, S, Prabhakaran, A, Prakhya, G K V, Lombardi, D & Mistry, H 2021, ' Seismic Design of Offshore Wind Turbines: Good, Bad and Unknowns ', Energies, vol. 14, no. 12 . https://doi.org/10.3390/en14123496 |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en14123496 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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