Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept

Cheng, Zhengshun; Wen, Ting; Ong, Muk Chen; Wang, Kai

doi:10.1016/j.energy.2018.12.157

Cited by 63 publications

(10 citation statements)

References 30 publications

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“…On this basis, Mitra et al [104] modified the STC by integrating spring and dashpot between the spar and torus to improve the sway motion. Cheng et al [105] replaced the horizontal axis WT with a vertical axis WT, and believed that it has a good potential to reduce the LCOE. University of Strathclyde [106] proposed a new offshore floating renewable energy system, called HWNC, which adds two tidal turbines compared to STC.…”

Section: Spar Type 4341 Torusmentioning

confidence: 99%

“…The basic concept of the code is shown in figure 41. Cheng et al [105] achieved NUM analysis of the hybrid system by applying the SIMO-RIFLEX-DMS, whose flowchart is shown in figure 42. OUC developed an in-house overall optimization tool, using FAST as the linking code to connect the external WEC module, like advanced quantitative wave analysis (AQWA) and WEC-Sim.…”

Section: Numerical (Num) Simulationmentioning

confidence: 99%

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A state-of-the-art review of the hybrid wind-wave energy converter

Dong

et al. 2022

Prog. Energy

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The urgent demand for energy structural reform and the limitations of single energy development have promoted the combination of wind energy and wave energy. A hybrid energy system means that two or more energy devices share the same foundation. It reduces the levelized cost of energy (LCOE) and improves competitiveness through infrastructure sharing and increased power output. This paper starts with the development of the joint resources of wind and wave energies, then introduces the foundation forms of the hybrid system. It reviews the latest concepts and devices proposed with the integration of wind energy and wave energy, according to the foundation forms, and makes a preliminary assessment of the synergies of the hybrid system. The existing study methods of the hybrid systems are summarized. In view of the challenges faced by the development of hybrid energy systems, several suggestions are put forward accordingly. This paper provides a comprehensive guideline for the future development of the hybrid wind-wave energy converter (W-WEC) system.

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Section: Spar Type 4341 Torusmentioning

confidence: 99%

Section: Numerical (Num) Simulationmentioning

confidence: 99%

A state-of-the-art review of the hybrid wind-wave energy converter

Dong

et al. 2022

Prog. Energy

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“…The spar: Spars are cylindrical floating structures which achieve stability through the relative position of the centre of gravity and centre of buoyancy. Most common are the Spar-Torus Combinations (STC) presented in [151][152][153][154][155][156], where a spar type wind turbine is combined with a torus-shaped heaving point absorber added at the water surface. The power performance and dynamic response of this combination are discussed in [153], and it is concluded that using combined wave and wind provides lower-cost power as compared to individual wind or wave technology, but the grid integration effects of adding a WEC on wind turbines needs further research.…”

Section: Combined Platformsmentioning

confidence: 99%

Grid integration aspects of wave energy—Overview and perspectives

Said

Ringwood

2021

IET Renewable Power Gen

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The sustained development of wave energy in the past two decades makes it one of the most promising renewable energy resources to be added to the diverse mixture of supply systems. The inherent difficulty of grid integration of wave energy involves various aspects such as suitable control of power converters and power conditioning processes, allowing for the extraction of the best quality power. This paper presents a comprehensive review of different aspects of grid integration of wave energy devices, including classification of wave energy devices based on their impacts on grid integration, grid requirements imposed by the grid codes and storage technologies used for the grid integration of wave energy converters (WECs). This study also analyses various grid integration studies on wave energy converters, with particular emphasis on power converter technology and control. Furthermore, specific attention is given to the combinational studies that use wave energy combined with other renewable resources due to their positive synergies in lowering the costs of energy produced and that hold an opportunity for future research. An economic case is presented for wave energy devices based on value on the grid.

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“…The accuracy of this method by comparing the calculated results with the experimental data can meet the needs of applications (Luo et al , 2015). Cheng et al (2019) performed fully coupled simulations under turbulent winds and irregular waves. They conducted this study to evaluate its power performance and assess the additional torus’s impact on the floating’s dynamic behavior.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of fluid dynamic performance of turbulent flow over Hunter turbine with variable angle of blades

Nazarieh

Kariman

Hoseinzadeh

2022

HFF

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Purpose This study aims to simulate Hunter turbine in Computer Forensic Examiner (CFX) environment dynamically. For this purpose, the turbine is designed in desired dimensions and simulated in ANSYS software under a specific fluid flow rate. The obtained values were then compared with previous studies for different values of angles (θ and α). The amount of validation error were obtained. Design/methodology/approach In this research, at first, the study of fluid flow and then the examination of that in the tidal turbine and identifying the turbines used for tidal energy extraction are performed. For this purpose, the equations governing flow and turbine are thoroughly investigated, and the computational fluid dynamic simulation is done after numerical modeling of Hunter turbine in a CFX environment. Findings The failure results showed; 11.25% for the blades to fully open, 2.5% for blades to start, and 2.2% for blades to close completely. Also, results obtained from three flow coefficients, 0.36, 0.44 and 0.46, are validated by experimental data that were in high-grade agreement, and the failure value coefficients of (0.44 and 0.46) equal (0.013 and 0.014), respectively. Originality/value In this research, at first, the geometry of the Hunter turbine is discussed. Then, the model of the turbine is designed with SolidWorks software. An essential feature of SolidWorks software, which was sorely needed in this project, is the possibility of mechanical clamping of the blades. The validation is performed by comparing the results with previous studies to show the simulation accuracy. This research’s overall objective is the dynamical simulation of Hunter turbine with the CFX. The turbine was then designed to desired dimensions and simulated in the ANSYS software at a specified fluid flow rate and verified, which had not been done so far.

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Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept

Cited by 63 publications

References 30 publications

A state-of-the-art review of the hybrid wind-wave energy converter

A state-of-the-art review of the hybrid wind-wave energy converter

Grid integration aspects of wave energy—Overview and perspectives

Numerical simulation of fluid dynamic performance of turbulent flow over Hunter turbine with variable angle of blades

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