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- Conference Paper:
Tom et al.
This paper details the development and validation of a numerical model of the Wavestar wave energy converter (WEC) developed in WEC-Sim. This numerical model was developed in support of the WEC Control Competition (WECCCOMP), a competition with the objective of maximizing WEC performance over costs through innovative control strategies. WECCCOMP has two stages: numerical implementation of…
- Journal Article:
So et al.
This study evaluates the accuracy of using the opensource wave energy converter modeling WEC-Sim code to model an oscillating water column (OWC) as a virtual point absorber. WEC-Sim is a free, open-source hydrodynamic modeling extension of MATLAB/Simulink, and is designed primarily for ease of use and the modeling of oscillating body wave energy converters (e.g., point absorbers). Oscillating…
- Journal Article:
Ruehl et al.
The floating oscillating surge wave energy converter (FOSWEC) is a wave energy converter that was designed, built, and tested to develop an open-access data set for the purpose of numerical model validation. This paper details the experimental testing of the 1:33-scale FOSWEC in a directional wave basin, and compares experimental data to numerical simulations using the wave energy converter…
- Conference Paper:
Ruehl et al.
The Wave Energy Converter Simulator (WEC-Sim) is an open-source code jointly developed by Sandia National Laboratories and the National Renewable Energy Laboratory. It is used to model wave energy converters subjected to operational and extreme waves. In order for the WEC-Sim code to be beneficial to the wave energy community, code verification and physical model validation is necessary. This…
- Conference Paper:
Ruehl et al.
In this paper we provide an update on the status of the WEC-Sim project, both the code development and experimental testing efforts. Code development has been focused on adding features that improve the delity of the simulation including non-linear hydrostatic and excitation forces calculation, body-to-body interactions through coupled radiation forces, Morison drag, and more direct modeling…
- Conference Paper: Ruehl et al.
Preliminary Verification and Validation of WEC-Sim, an Open-Source Wave Energy Converter Design Tool
To promote and support the wave energy industry, a wave energy converter (WEC) design tool, WEC-Sim, is being developed by Sandia National Laboratories and the National Renewable Energy Laboratory. In this paper, the WEC-Sim code is used to model a point absorber WEC designed by the U.S. Department of Energy's reference model project. Preliminary…
- Conference Paper:
Bosma et al.
In the wave energy industry, there is a need for open source numerical codes and publicly available experimental data, both of which are being addressed through the development of WEC-Sim by Sandia National Laboratories and the National Renewable Energy Laboratory (NREL). WEC-Sim is an open source code used to model wave energy converters (WECs) when subject to incident waves. In order for the…
- Conference Paper:
Driscoll et al.
The United States’ Department of Energy’s Wave Energy Prize (the Prize) contest encouraged the development of innovative deep-water wave energy technologies that at least doubled device performance above the 2014 state-of-the-art. The prize developed the ACE and HPQ metrics as a proxy for LCOE that provide an equitable comparison of low Technology Readiness Level (TRL) Wave Energy Converter (…
- Conference Paper:
Ringwood et al.
This paper outlines a proposed open competition which will compare energy-maximising controllers for wave energy converters (WECs), both in simulation, and in real time, using a scale device in a tank test situation. To date, a wide variety of WEC control algorithms have been proposed, but have been difficult to compare due to differences in the simulation/scale models they are evaluated on,…
- Conference Paper:
Driscoll et al.
Field and laboratory validation, testing, demonstration, and operation are critical steps for increasing the technology readiness level of marine energy converters because they provide high-quality testing and performance data. These…
- Presentation:
Fao et al.
Field and laboratory validation and testing data provide critical information needed to increase the technology readiness level of marine energy converters. While data collection systems and standards have steadily advanced, there is still a need for Marine Renewable Energy (MRE) specific open-source data processing (data ingestion, reduction, conditioning, calculation, and visualization),…
- Journal Article:
Faraggiana et al.
A submerged wave device generates energy from the relative motion of floating bodies. In WaveSub, three floats are joined to a reactor; each connected to a spring and generator. Electricity generated damps the orbital movements of the floats. The forces are non-linear and each float interacts with the others. Tuning to the wave climate is achieved by changing the line lengths so there is a…
- Journal Article:
Ringwood et al.
The wave energy control competition established a benchmark problem which was offered as an open challenge to the wave energy system control community. The competition had two stages: In the first stage, competitors used a standard wave energy simulation platform (WEC-Sim) to evaluate their controllers while, in the second stage, competitors were invited to test their controllers in a real-…
- Journal Article:
Wendt et al.
The International Energy Agency Technology Collaboration Programme for Ocean Energy Systems (OES) initiated the OES Wave Energy Conversion Modelling Task, which focused on the verification and validation of numerical models for simulating wave energy converters (WECs). The long-term goal is to assess the accuracy of and establish confidence in the use of numerical models used in design as well…
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