Developments in semi-submersible floating foundations supporting wind turbines: A comprehensive review

Liu, Yichao; Li, Sunwei; Qian, Yi; Chen, Daoyi

doi:10.1016/j.rser.2016.01.109

Cited by 151 publications

(48 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the field of wind power production, it has long been recognized that the wind resources over the sea are more abundant although inland wind energy exploitation is more popular [2]. The visual and sound impact, in addition, caused by a wind farm are alleviated when moving from an inland site to an offshore site [3].…”

Section: Introductionmentioning

confidence: 99%

Wind Profiles and Wave Spectra for Potential Wind Farms in South China Sea. Part I: Wind Speed Profile Model

et al. 2017

Self Cite

View full text Add to dashboard Cite

Abstract:With the setting of wind energy harvesting moving from coastal waters to deep waters, the South China Sea has been deemed to offer great potential for the construction of floating wind farms thanks to the abundance of wind energy resources. An engineering model describing the wind profiles and wave spectra specific to the South China Sea conditions, which is the precondition for offshore wind farm construction, has, however, not yet been proposed. In the present study, a series of numerical simulations have been conducted using the Weather Forecast and Research model. Through analyzing the wind and wave information extracted from the numerical simulation results, engineering models to calculate vertical profiles of wind speeds and wave spectra have been postulated. While the present paper focuses on the wind profile model, a companion paper articulates the wave spectrum model. For wind profiles under typhoon conditions, the power-law and log-law models have been found applicable under the condition that the Hellmann exponent α or the friction velocity u * are modified to vary with the wind strength. For wind profiles under non-typhoon conditions, the log-law model is revised to take into consideration the influence of the atmospheric stability.

show abstract

Section: Introductionmentioning

confidence: 99%

Wind Profiles and Wave Spectra for Potential Wind Farms in South China Sea. Part I: Wind Speed Profile Model

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…The offshore wind power industry development trends clearly lead towards deeper water regions. However, the main problem here is the lack of effective technical solutions for supporting structures, although the literature on supports for offshore wind turbines provides descriptions of various foundation types, such as monopiles [7][8][9] [21], and supports with submerged displacement hulls, a so-called Tension Leg Platform (TLP) solution [22][23]. What is noteworthy is huge technological progress in the field of numerical simulations, supported by experimental tests [24][25][26][27][28][29][30][31][32][33][34][35][36][37].…”

Section: Fig 2 Average Water Region Depth and Distance From The Seamentioning

confidence: 99%

Strength Analysis of a Large-Size Supporting Structure for an Offshore Wind Turbine

Niklas

2017

Polish Maritime Research

View full text Add to dashboard Cite

show abstract

“…On the other hand, the installation cost of the mooring system is also significantly lower than that of the other two types of foundations. In addition, due to the large draft of the semi-submersible foundation, the natural period of the heave motion response is longer, so the hydrodynamic characteristics caused by the wind load are better [31]. According to the relevant research results, the semi-submersible foundation's motion response shows an interesting law.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of a Proposed Semi-Submersible Floating Platform with Different Numbers of Offset Columns Based on the DeepCwind Prototype for Improving the Wave-Resistance Ability

et al. 2019

View full text Add to dashboard Cite

DeepCwind semi-submersible floating offshore wind turbines have been widely examined, and in some countries this type of floating offshore wind turbine has been adopted in the construction of floating wind farms. However, the DeepCwind semi-submersible floating offshore wind turbines still experience large surge motion that limits their operational time. Therefore, in this study, a semi-submersible floating platform with different numbers of offset columns, but with the same total weight, based on the DeepCwind prototype is proposed. From the free-decay test, it was found that the number of the floating columns will affect the natural frequency of the platform. Furthermore, the regular wave test in the time domain and the irregular wave test in the frequency domain show that increasing the number of the floating columns will reduce the surge motion greatly, while the effects in the heave and pitch motions are not obvious.

show abstract

Developments in semi-submersible floating foundations supporting wind turbines: A comprehensive review

Cited by 151 publications

References 40 publications

Wind Profiles and Wave Spectra for Potential Wind Farms in South China Sea. Part I: Wind Speed Profile Model

Wind Profiles and Wave Spectra for Potential Wind Farms in South China Sea. Part I: Wind Speed Profile Model

Strength Analysis of a Large-Size Supporting Structure for an Offshore Wind Turbine

Numerical Study of a Proposed Semi-Submersible Floating Platform with Different Numbers of Offset Columns Based on the DeepCwind Prototype for Improving the Wave-Resistance Ability

Contact Info

Product

Resources

About