Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Wave Energy Converter (WEC)"”.
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Application of the latching control on a wave energy converter
… dimensions of a control-free point absorber wave energy converter (WEC). The methodology is based on frequency domain simulation of the WEC oscillations and a statistical analysis method called “design of experiment” (DOE). Then, using the preliminary results, an approach based on a series of …
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OSCILLATING SURGE WAVE ENERGY CONVERTER GEOMETRY OPTIMIZATION FOR DIRECT SEAWATER DESALINATION
… methods for fulfilling this need, but it is an energy-intensive process that is expensive to maintain. Wave energy can be utilized to increase the efficiency of seawater desalination using a wave energy converter (WEC) to lower the external energy requirement. This thesis presents an analysis of …
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Boat-shaped Buoy Optimization of an Ocean Wave Energy Converter Using Neural Networks and Genetic Algorithms
… is one of the most popular types of ocean wave energy converter (WEC) that harvests energy from the ocean. Often such a WEC is deployed in an ocean location with tidal currents or ocean streams, or serves as a mobile platform to power the blue economy. The shape of the floating body, or …
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Model, Design, and Control for Power Conversion in Wave Energy Converter System
Wave energy has great potential in energy harvesting, but due to its high system cost per electricity production, it is still in the pre-commercialization stage for grid connection. A wave energy converter (WEC) system that harvests energy through wave motion consists of a wave energy converter and …
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Fluid-Structure Interaction Modeling of a Flexible-Inflatable Heaving Wave Energy Converter Through Generalized Modes
… absorber, one of the most popular types of ocean wave energy converter (WEC), usually consists of a rigid body buoy that can be efficiently modeled using existing WEC simulation tools. However, new wave energy technologies have looked to utilize flexible buoy structures to decrease costs, improve …
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Dynamics of Pitching Wave Energy Converter with Resonant U-Tank Power Extraction Device
… and theoretical validation of a new type of wave energy converter (WEC), comprising a pitching floater integrated with a resonant U-tank (RUT) and a Wells turbine as power take-off (PTO). Theoretical formulation of a fully coupled multi-body dynamic system, incorporating the thermodynamic …
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Design and Characterization of a Wave Energy Converter Array Experimental Test Platform
Wave energy is a promising source of renewable energy that has the potential to play a significant role in the global transition towards sustainable energy. Unlike other forms of renewable energy, wave energy is not dependent on weather patterns or daylight hours, making it a reliable and …
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Hydrodynamic Analysis of Arrays of General Bodies
Wave energy is one of the world’s largest sources of renewable energy. However, wave energy farms are in an early stage of development and relevant research in this field has not produced a general agreement on design approach. Many research articles have been published analyzing optimal geometry …
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Wave energy resource assessment
… altimeter data for spatial mapping of the wave resource is examined.<br/>A new algorithm for estimating wave period from altimeter data is developed and<br/>validated, which enables estimates of wave energy converter (WEC) power to be<br/>derived. Maps of the long-term mean WEC power from …
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Optimal control of wave energy converters
Wave Energy Converters (WECs) are devices designed to absorb energy from ocean waves. The particular type of Wave Energy Converter (WEC) considered in this thesis is an oscillating body; energy conversion is carried out by means of a structure immersed in water which oscillates under forces exerted …
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Quasi-Monte Carlo and Picard Iteration Algorithms for the Nonlinear Hydrodynamics, Dynamics and Controls of Wave Energy Converters
Ocean waves are an increasingly attractive target for renewable energy technologies, spurring the development of tools to optimize the capture of this available energy. While there has been an abundance of wave energy converter (WEC) concepts developed over the last 50 years, few have been …
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Experimental and Numerical Modelling of a Multiple Oscillating Water Column Structure
The potential exists for ocean energy from waves to meet a large fraction of future global energy needs. Furthermore, synergies between the existing offshore wind industry, and the future offshore wave energy industry, can be exploited. This thesis is concerned with the physical and numerical …
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Linear and nonlinear parametric hydrodynamic models for wave energy converters identified from recorded data
Ocean waves represent an important resource of renewable energy, which can provide a significant support to the development of more sustainable energy solutions and to the reduction ofCO2 emissions. The amount of extracted energy from the ocean waves can be increased by optimizing the geometry and …
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Mechanical Motion Rectifier Based Single and Hybrid Input Marine Energy Harvester Analysis, Design and Basin Test Validation
Point absorber style marine energy harvesters have been investigated based on their structure, energy harvesting efficiency, and reliability along with costs. However, due to the continuously varying ocean conditions and climates, the system usually suffers low power output and reliability from low …
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A harmonic balance framework for the numerical simulation of non-linear wave energy converter models in random seas
… is essential, to assist in the development of wave energy technology. In particular, tasks such as power assessment, optimisation and structural design require a large number of numerical simulations to calculate the wave energy converter (WEC) outputs of interest, over a variety of wave …
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Synergistic design of a combined floating wind turbine - wave energy converter
Offshore energy machines have great potential: higher capacity factors, more available space, and lower visual impacts than onshore machines. This thesis investigates how combining a wave energy converter (WEC) with a floating wind turbine (FWT) may produce offshore renewable energy cost savings. …
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The development of a real-time wave energy device control algorithm based on artificial neural network
… intelligence controller to maximize the energy absorption of wave energy converter (WEC) in practical application. The controller maximizes the energy absorption by locking and releasing the WEC alternately, and such control is known as the latching control. The model predictive control …
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Optimal configuration of large arrays of floating bodies for ocean wave energy extraction
Ocean wave energy is a large, and mostly untapped potential source of renewable energy worldwide. The scope of engineering solutions for harvesting wave energy is vast, ranging from wave-induced oscillating bodies, to overtopping devices and oscillating water columns. One particularly interesting …
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Numerical Analysis and Parameter Optimization of Portable Oscillating-Body Wave Energy Converters
As a clean, abundant, and renewable source of energy with a strategic location in close proximity to global population regions, ocean wave energy shows major promise. Although much wave energy converter development has focused on large-scale power generation, there is also increasing interest in …