A review on recent advancements of substructures for offshore wind turbines

Wang, Xuefei; Zeng, Xiangwu; Li, Jiale; Yang, Xu; Wang, Haijun

doi:10.1016/j.enconman.2017.12.061

Cited by 176 publications

(65 citation statements)

References 123 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides the previously mentioned types of foundations, there are others in development to be used in the offshore wind industry. One of the most known is the suction caisson being used in oil and gas with very good results [69][70][71]. This typology provides a stable and light base, whose strength comes directly, not from its weight or depth, but from the compaction of the supporting soil through the suction of the water.…”

mentioning

confidence: 99%

Foundations in Offshore Wind Farms: Evolution, Characteristics and Range of Use. Analysis of Main Dimensional Parameters in Monopile Foundations

Avila-Sanchez

Gutiérrez

Negro

et al. 2019

JMSE

View full text Add to dashboard Cite

Renewable energies are the future, and offshore wind is undoubtedly one of the renewable energy sources for the future. Foundations of offshore wind turbines are essential for its right development. There are several types: monopiles, gravity-based structures, jackets, tripods, floating support, etc., being the first ones that are most used up to now. This manuscript begins with a review of the offshore wind power installed around the world and the exposition of the different types of foundations in the industry. For that, a database has been created, and all the data are being processed to be exposed in clear graphic summarizing the current use of the different foundation types, considering mainly distance to the coast and water depth. Later, the paper includes an analysis of the evolution and parameters of the design of monopiles, including wind turbine and monopile characteristics. Some monomials are considered in this specific analysis and also the soil type. So, a general view of the current state of monopile foundations is achieved, based on a database with the offshore wind farms in operation.

show abstract

mentioning

confidence: 99%

Foundations in Offshore Wind Farms: Evolution, Characteristics and Range of Use. Analysis of Main Dimensional Parameters in Monopile Foundations

Avila-Sanchez

Gutiérrez

Negro

et al. 2019

JMSE

View full text Add to dashboard Cite

show abstract

“…The different foundation forms of OWTs, which mainly include monopole, gravity, tripod, jacket, suction bucket and floating techniques [63,64], require the adaptable health monitoring system. Wang et al designed an online monitoring system for the Vestas 3 MW wind turbine with a bucket foundation to access the structural condition and obtain the modal information [63]. Then, an SHM system based on FBG sensors dedicated to an OWT model supported by a tripod foundation was presented.…”

Section: Health Monitoring System Of the Tower And Foundationmentioning

confidence: 99%

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

et al. 2019

View full text Add to dashboard Cite

With the depletion of fossil energy, offshore wind power has become an irreplaceable energy source for most countries in the world. In recent years, offshore wind power generation has presented the gradual development trend of larger capacity, taller towers, and longer blades. The more flexible towers and blades have led to the structural operational safety of the offshore wind turbine (OWT) receiving increasing worldwide attention. From this perspective, health monitoring systems and operational safety evaluation techniques of the offshore wind turbine structure, including the monitoring system category, data acquisition and transmission, feature information extraction and identification, safety evaluation and reliability analysis, and the intelligent operation and maintenance, were systematically investigated and summarized in this paper. Furthermore, a review of the current status, advantages, disadvantages, and the future development trend of existing systems and techniques was also carried out. Particularly, the offshore wind power industry will continue to develop into deep ocean areas in the next 30 years in China. Practical and reliable health monitoring systems and safety evaluation techniques are increasingly critical for offshore wind farms. Simultaneously, they have great significance for strengthening operation management, making efficient decisions, and reducing failure risks, and are also the key link in ensuring safe energy compositions and achieving energy development targets in China. The aims of this article are to inform more scholars and experts about the status of the health monitoring and safety evaluation of the offshore wind turbine structure, and to contribute toward improving the efficiency of the corresponding systems and techniques.

show abstract

“…Currently, bucket foundation has been put forward as an innovative foundation type which is applicable to softer soil conditions due to its cost-effectiveness and high-reliability [1,2] compared with the other various foundation types [3][4][5], including monopile [6,7], concrete pile-supported square footing [8], gravity, tripod [9], jacket [9,10], and floating [11], which were designed for different environmental and geological conditions. The bucket foundation normally consists of skirt and lid, which constitutes an upside-down bucket [12] and may be used as an offshore wind turbine foundation in appropriate soil conditions [13,14].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Impedance of the Wide-Shallow Bucket Foundation for Offshore Wind Turbine Using Coupled Finite–Infinite Element Method

et al. 2019

View full text Add to dashboard Cite

The dynamic impedances of foundation play an important role in the dynamic behavior and structural stability of offshore wind turbines (OWT). Though the behaviors of bucket foundation, which are considered as a relatively innovative foundation type under static loading, have been extensively investigated, the corresponding dynamic performances were neglected in previous research. This study focuses on the dynamic impedances of wide-shallow bucket foundations (WSBF) under the horizontal and rocking loads. Firstly, the numerical model was established to obtain the dynamic impedances of WSBF using the coupled finite-infinite element technique (FE-IFE). The crucial parameters affecting the dynamic responses of WSBF are investigated. It is shown that the skirt length mainly affects the rocking dynamic impedance and the diameter significantly affects the horizontal and coupling impedances, especially when the diameter is larger than 34 m. The overall dynamic responses of WSBF are profoundly affected by the relative soil thickness and the multi-layer soil stiffness. Additionally, dynamic impedances of WSBF are insensitive to the homogeneous soil stiffness. Lastly, the safety threshold curve was calculated according to the OWT, which can provide essential reference for the design of the OWT supported by large scale WSBF.

show abstract

A review on recent advancements of substructures for offshore wind turbines

Cited by 176 publications

References 123 publications

Foundations in Offshore Wind Farms: Evolution, Characteristics and Range of Use. Analysis of Main Dimensional Parameters in Monopile Foundations

Foundations in Offshore Wind Farms: Evolution, Characteristics and Range of Use. Analysis of Main Dimensional Parameters in Monopile Foundations

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

Dynamic Impedance of the Wide-Shallow Bucket Foundation for Offshore Wind Turbine Using Coupled Finite–Infinite Element Method

Contact Info

Product

Resources

About