Wave power technologies

Previsic, Mirko

doi:10.1109/pes.2005.1489371

Cited by 16 publications

(6 citation statements)

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“…The fundamental converter type utilised in the CORES project operates on the principle of the OWC. An OWC is a WEC with a submerged opening and a hollow structure containing a volume of water and an air-water interface (Evans, 1978;O'Sullivan and Lewis, 2008;Previsic, 2005). The OWC used in this project was a backward bend duct buoy as shown in Figure 1, while Figure 2 shows the CORES OWC shortly following deployment.…”

Section: System Overviewmentioning

confidence: 99%

Challenges and lessons learned in the deployment of an offshore oscillating water column

Kelly

O’Sullivan

Wright

et al. 2014

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -The purpose of this paper is to disseminate the lessons learned from the successful deployment of a wave energy converter (WEC) and accelerate growth in the field of ocean energy. Design/methodology/approach -A thorough, well structured, documented, industrial approach was taken to the deployment because of the depth and scale of the task required. This approach is shown throughout the paper, which reflects the importance of a comprehensive project plan in success as well as failure.Findings -The findings demonstrate the viability of the use of off shore WEC to generate electricity and that such a project can be completed on time and on budget.Research limitations/implications -The research implications of the paper include the importance of an enhanced, integrated supervisory system control in terms of efficiency, operation and maintenance, and long-term viability of WECs. This paper can be used to help guide the direction of further research in similar areas. Practical implications -The practical implications include proof that WEC deployments can be carried out both on time and under budget. It highlights much of the practical data collected throughout the course of the project and presents it so that it might be used as a guide for future projects.

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Section: System Overviewmentioning

confidence: 99%

Challenges and lessons learned in the deployment of an offshore oscillating water column

Kelly

O’Sullivan

Wright

et al. 2014

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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“…The ocean waves are an attractive renewable energy source as they offer high utilization, no fuel cost as well as a high power density, and a number of different research groups around the world are currently investigating the possibilities to convert this energy to electric energy [1][2][3][4][5]. The wave energy converter this paper focuses on, developed at Uppsala University, is a linear direct driven permanent magnet generator placed on the seabed connected by a line to a point absorbing buoy.…”

Section: Introductionmentioning

confidence: 99%

Longitudinal End Effects in a Linear Wave Power Generator

Ekergård

Leijon

2020

Energies

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Even though the magnetic circuit of a linear electric machine is very similar to a rotating electric machine, they diverge in one fundamental property. The linear generator is open in both ends, i.e., the magnetic circuit is non-symmetric. This paper investigates and discusses the drawbacks of this non-symmetric design in a linear permanent magnet generator, installed in a wave energy conversion system. A two-dimensional geometry has been utilized for the numerical calculations in a finite element method simulation tool. The results present an increased cogging force and significant core losses in the translator as consequences of the longitudinal ends in the machine.

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“…Wave energy, with the advantages of high energy density and wide distribution, is an inexhaustible renewable clean energy source, and considered an ideal energy source for the power supply of the drifters. For more than two centuries, inventors have proposed many different devices to utilize wave power for human purposes [14][15][16], and several research papers relating to ocean wave energy conversion have been emerged in an endless stream [17][18][19][20]. Control strategies for wave energy conversion systems also have been studied in several papers [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of a Novel Adaptively Counter-Rotating Wave Energy Converter for Powering Drifters

Luo

et al. 2019

JMSE

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Nowadays, drifters are used for a wide range of applications for researching and exploring the sea. However, the power constraint makes it difficult for their sampling intervals to be smaller, meaning that drifters cannot transmit more accurate measurement data to satellites. Furthermore, due to the power constraint, a modern Surface Velocity Program (SVP) drifter lives an average of 400 days before ceasing transmission. To overcome the power constraint of SVP drifters, this article proposes an adaptively counter-rotating wave energy converter (ACWEC) to supply power for drifters. The ACWEC has the advantages of convenient modular integration, simple conversion process, and minimal affection by the crucial sea environment. This article details the design concept and working principle, and the interaction between the wave energy converter (WEC) and wave is presented based on plane wave theory. To verify the feasibility of the WEC, the research team carried out a series of experiments in a wave tank with regular and irregular waves. Through experiments, it was found that the power and efficiency of the ACWEC are greatly influenced by parameters such as wave height and wave frequency. The maximum output power of the small scale WEC in a wave tank is 6.36 W, which allows drifters to detect ocean data more frequently and continuously.

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Wave power technologies

Cited by 16 publications

References 0 publications

Challenges and lessons learned in the deployment of an offshore oscillating water column

Challenges and lessons learned in the deployment of an offshore oscillating water column

Longitudinal End Effects in a Linear Wave Power Generator

Experimental Analysis of a Novel Adaptively Counter-Rotating Wave Energy Converter for Powering Drifters

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