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 20 of 49 for “"WEC"”.
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Sloshing tank to enhance WEC performance: Modelling, validation and integration
L'abstract è presente nell'allegato / the abstract is in the attachment
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Numerical investigation of the performance of WEC integrated with vertical wall using CFD
… In this thesis, Wave Energy Converters (WECs) assume a pivotal role, and researchers have undertaken extensive investigations into various methodologies aimed at optimizing their efficiency. The thesis presents a comprehensive exploration of the synergistic impact that arises from the …
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Synergistic design of a combined floating wind turbine - wave energy converter
… how combining a wave energy converter (WEC) with a floating wind turbine (FWT) may produce offshore renewable energy cost savings. Attaching the WEC to the FWT greatly reduces the WEC's steel frame, mooring lines, electric transmission lines, and siting/permitting costs, which may …
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Modeling and Control of a Multibody Hinge-BargeWave Energy Converter
Wave Energy Converters (WECs) are devices used to extract energy from the waves. The particular WEC considered in this thesis is a three-body hinge-barge WEC, which is an articulated floating structure composed of 3 rectangular bodies interconnected by hinges, and it operates longitudinally to the …
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A harmonic balance framework for the numerical simulation of non-linear wave energy converter models in random seas
… to calculate the wave energy converter (WEC) outputs of interest, over a variety of wave conditions or physical parameters. Such challenges involve a sound understanding of the statistical properties of ocean waves, which constitute the forcing inputs to the wave energy device, and …
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Application of the latching control on a wave energy converter
… 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 time domain analyses …
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Leadership in work environment complexity
… of Leadership in Work Environment Complexity (WEC). In recent years, organisations have been rapidly evolving into ever more complex workplaces that single actors are hardly able to oversee or control (Osborn & Hunt, 2007). This thesis therefore introduces and works with the construct of Work …
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Wave energy resource assessment
… enables estimates of wave energy converter (WEC) power to be<br/>derived. Maps of the long-term mean WEC power from altimeter data are of a higher<br/>spatial resolution than is available from global wave model data. They can be used for<br/>identifying promising wave energy locations along …
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Optimization of the geometry of axisymmetric point-absorber wave energy converters
… have been conducted on wave energy converters (WECs), however as yet there has been no convergence on the optimal shape of a WEC. Furthermore, there is no agreed-upon definition of what it means for a WEC to be 'optimal' and no established framework to find optimal shapes. This thesis …
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The development of a real-time wave energy device control algorithm based on artificial neural network
… 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 strategy is used to implement real-time …
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Improvements in the numerical modelling of wake effects for wave energy converter farms
… that large farms of Wave Energy Converters (WECs) will be installed in the sea and as part of the consenting process it will be necessary to quantify their impact on the local environment. The physics of the wave field around the WEC farm is important since it affects coastal processes and …
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Fluid-Structure Interaction Modeling of a Flexible-Inflatable Heaving Wave Energy Converter Through Generalized Modes
… 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 power generation, and …
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Fatigue reliability assessment of co-located offshore wind and wave energy systems
… wind turbines (OWTs) and wave energy converters (WECs). If WEC arrays are deployed in the direction of dominant incoming waves at OWTs, the resulting reduction in wave loading can serve to protect the OWT, thus enhancing its structural reliability and extending its service life. To assess this …
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Linear and nonlinear parametric hydrodynamic models for wave energy converters identified from recorded data
… control strategy of the wave energy converter (WEC), which both require mathematical hydrodynamic models, able to correctly describe the WEC-fluid interaction. In general, the construction of a model is based on physical laws describing the system under investigation. The hydrodynamic laws are …
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Hydrodynamic Analysis of Arrays of General Bodies
… geometry of a singular wave energy converter (WEC) or the arrangement of a narrow range of varied geometry. This thesis seeks to expand on this research to study the effects of both WEC arrangement and varied body geometry. An optimal combination of WEC geometry and array configuration to …
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Optimal control and model reduction for wave energy systems: A moment-based approach
… a vast resource, wave energy converters (WECs) have yet to make significant progress towards commercialisation. One stepping stone to achieve this objective is the availability of appropriate control technology, …
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Wave Energy Converter Performance Modeling and Cost of Electricity Assessment
… P1, and WaveDragon wave energy converters (WECs) to calculate the annual electrical output of each device at each site. Sophisticated computer modeling of the bathymetric influence on the wave resource at each site is presented using the program Simulating Waves Nearshore (SWAN) developed by …
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Boat-shaped Buoy Optimization of an Ocean Wave Energy Converter Using Neural Networks and Genetic Algorithms
… 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 buoy, of the point …
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Design and Characterization of a Wave Energy Converter Array Experimental Test Platform
… into electrical energy. Wave energy converter (WEC) arrays consist of multiple individual WEC devices that are arranged in a specific pattern. The arrangement of the devices within the array is designed to optimize their performance and reduce their negative effects on the surrounding …
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Hydrodynamic excitation force estimation and forecasting for wave energy applications
… such as deploying Wave Energy Converters (WECs) in large arrays or optimal control of WECs. The majority of WEC optimal control strategies require knowledge of the previous, current, and future excitation force acting on the device. However, for the WEC case, the excitation force is an …
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