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- Conference Paper:
Moretti et al.
… This paper introduces a novel concept of Oscillating Wave Surge Converter, named Poly-Surge, provided with a Dielectric Elastomer … that employ rubber-like polymers to conceive deformable membrane capacitors capable of directly converting mechanical energy into electricity. In particular, a Parallelogram Shaped DEG is considered. In the paper, a description of the Poly-Surge is outlined and engineering considerations about the operation and control of …
- Conference Paper:
Bailey and Bryden
… effect that a mono-directional Power Take Off (PTO) has on the motions and power extraction of a Wave Energy Converter (WEC). A mono-directional damper is one where the resisting force only operates in one direction. The model comprises of a cylinder that is restrained to move in heave, reacting against an internal mass (also … mono-directional damper in parallel. This paper presents experimental results for a variety of different damping constants for mono-directional dampers which operate in both in expansion …
- Conference Paper:
Hodgins et al.
… aimed at reducing overall system mass in direct drive power takeoff applications. The design of a C-GEN generator requires the combination of electromagnetic, structural and thermal models. Two rotary prototypes of 15 & 20kW have been constructed and tested and the 15kW prototype has been fitted to a wind …
- Conference Paper:
Child and Venugopal
… A method is presented to analyse wave interactions with an array of simplified wave energy devices. The problem is formulated in terms of a group of heaving vertical circular cylinders floating in the ocean, whose motion is damped by their …
- Conference Paper:
Crozier et al.
… The high operation and maintenance (O&M) costs of wave energy converters are a large impediment to the technology’s development. Magnetic gears … suffer considerably less wear than mechanical alternatives. This paper presents the results of a dynamic analysis of a magnetically geared power take off system that has been designed for use with an oscillating …
- Conference Paper:
Burchell et al.
… for Wave Energy Convertor (WEC) designers and manufacturers is the efficient conversion of differing wave types into useful motion to produce electricity. The height, period and orientation of waves vary greatly as do their respective power levels [1]. In order to efficiently and cost effectively convert the kinetic energy of wave motion into electrical energy, a Power Take Off (PTO) system must be able to withstand …
- Conference Paper:
Reynolds et al.
… A novel control strategy is proposed for the control of two fixed pitch tidal turbines subjected to discrete flow speeds whilst interconnected in an … Expenditure (OPEX) due to offshore equipment failure. An added benefit is utilisation of a single shared export cable for both turbines, thereby reducing Capital Expenditure (CAPEX). By lowering the cost of installing and maintaining an array it is anticipated that the commercial viability of the …
- Conference Paper:
Lucas et al.
… A modified version of the Edinburgh duck wave energy converter has been studied recently at the University of Edinburgh. …
- Conference Paper:
Keysan et al.
… C-GEN is a new topology of direct-drive permanent magnet generator being developed at University of Edinburgh. The main benefits are reduced overall system mass and ease of manufacturing, due to …
- Conference Paper:
Clark et al.
… loads (DELs) for a PTO given three hull shapes (a cylinder, a sphere, and a barge), two sets of metocean conditions (from the center of the North Sea and off the west coast of Norway), and two float motions (heave and surge). Results indicate that hull geometry has a …
- Conference Paper:
Mueller et al.
… power take-off and the type used depends upon the wave energy device. A brief description of the different power take offs is provided to show how conventional rotary generators are used … and disadvantages are highlighted in the paper. Direct drive systems can overcome some of the disadvantages, but there are additional engineering challenges to overcome, in particular … size and mass. Current and more novel direct machine topologies are discussed in the context of these challenges. … 21723 …
- Conference Paper:
Hiles et al.
… The influence of the dimensionality of the performance matrix and the duration of the performance data series on the power performance assessments by the IEC/TS-62600-100 and …
- Conference Paper:
Ohana et al.
… One of the main goals of the EU H2020 MaRINET2 project is to improve the quality, robustness and … paper describes the tests on a wave energy converter model carried out in the wave tanks of University of Plymouth, University College Cork, University of Edinburgh and Centrale Nantes. This deep water device selected by the partners is a two-body …
- Conference Paper:
Mueller et al.
… off eliminates the need for a mechanical interface to match the low speed reciprocating motion of a wave device to high speed rotational motion of conventional electrical generators. However, direct drive generators are physically large and … is challenging for the structural and bearing design. An air-cored machine solves the issue of magnetic attraction forces, which will benefit the mechanical design. The performance of an …
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