Geometric optimisation of wave energy conversion devices: A survey

Guo, Bingyong; Ringwood, John V.

doi:10.1016/j.apenergy.2021.117100

Cited by 80 publications

(17 citation statements)

References 195 publications

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“…It can been seen that only the Mighty Whale , Pelamis , Mutriku and SeaBased devices are at stage 5. Most pre‐commercial devices are based on OWC or PA concepts, showing high consistency to the R&D foci reviewed in [11, 62, 221].…”

Section: Historical and Commercial Effortmentioning

confidence: 83%

“…Most R&D activities focus on wave-activated WEC concepts, which can make use of the potential or/and kinetic wave energy to generate electricity [11,35,36,62]. Wave-activated WECs can be further classified as (i) floating or submerged subclasses, according to wave-WEC interaction, (ii) rotating or translating subtypes according to the essential degrees of freedom (DoFs) exploited, or (iii) PAs, attenuators and terminators according to WEC geometry, with respect to wavelength and propagating direction.…”

Section: Figurementioning

confidence: 99%

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A review of wave energy technology from a research and commercial perspective

Guo

Ringwood

2021

IET Renewable Power Gen

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Although wave energy prototypes have been proposed for more than 100 years, they have still not reached full commercialisation. The reasons for this are varied, but include the diversity of device operating principles, the variety of onshore/nearshore/offshore deployment possibilities, the diversity of the wave climate at various potential wave energy sites, and the consequent lack of convergence in technology and consensus. This distributed effort has, in turn, lead to a slow rate of progression up the learning curve, with a significant number of wave energy company liquidations and technical setbacks dampening investor confidence. Although a number of reviews on wave energy technology are already in the published literature, such a dynamic environment merits an up‐to‐date analysis and this review examines the wave energy landscape from a technological, research and commercial perspective.

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Section: Historical and Commercial Effortmentioning

confidence: 83%

Section: Figurementioning

confidence: 99%

A review of wave energy technology from a research and commercial perspective

Guo

Ringwood

2021

IET Renewable Power Gen

Self Cite

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“…In general, there may be three stages when transferring the energy of ocean waves into electrical power (there are other uses as well), as shown in Fig. 3, including the primary, secondary, and tertiary energy conversion stages [18] . At the primary energy conversion stage, the energy of the ocean waves is transferred into mechanical power by the wave-structure interaction between the ocean waves and fixed or floating structures.…”

Section: Wave Energy Convertors (Wecs)mentioning

confidence: 99%

Recent advances in wave energy converters based on nonlinear stiffness mechanisms

Zhang

Zhou

et al. 2022

Appl. Math. Mech.-Engl. Ed.

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Wave energy is one of the most abundant renewable clean energy sources, and has been widely studied because of its advantages of continuity and low seasonal variation. However, its low capture efficiency and narrow capture frequency bandwidth are still technical bottlenecks that restrict the commercial application of wave energy converters (WECs). In recent years, using a nonlinear stiffness mechanism (NSM) for passive control has provided a new way to solve these technical bottlenecks. This literature review focuses on the research performed on the use of nonlinear mechanisms in wave energy device utilization, including the conceptual design of a mechanism, hydrodynamic models, dynamic characteristics, response mechanisms, and some examples of experimental verification. Finally, future research directions are discussed and recommended.

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“…The majority of these focus on single-body point absorbers (see e.g. Table 6 of [9], or Tables 8-10 of [10]), and more generally, the first objective is usually based on the energy production, whilst the second and any further objectives typically aim to embody the cost of the device. Because the overall cost of a WEC (or the energy it produces) during its entire life cycle is difficult to compute, these objective functions are often reduced to a simpler proxy measure, such as some function of the mass, (submerged or total) volume or surface area.…”

Section: Introductionmentioning

confidence: 99%