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CalWave WEC Holistic PTO Design

This project aims to advance the Technology Readiness Level (TRL) of CalWave’s commercial scale Power Take-Off (PTO) subsystem through further increasing the level of coupling in physical PTO and concurrent controls design. This is achieved by incorporating a systematic holistic...
Boerner, T. et al CalWave Power Technologies Inc.
Sep 02, 2022
5 Resources
0 Stars
Awaiting release

CalWave WEC Open Water Demonstration Public Final Test Report

The objective of this project is to advance the Technology Readiness Level of the x1 Wave Energy Converter (WEC) developed by CalWave Power Technologies Inc. through advanced numerical simulations, dynamic hardware tests, and ultimately a scaled open water demonstration deployment...
Boerner, T. et al CalWave Power Technologies Inc.
Nov 30, 2022
2 Resources
0 Stars
Curated

ORPC TidGen Turbine Foil Production Process Technical Report

This report aims to provide a comprehensive overview of the production process for the first TidGen turbine. The turbine is composed of several key components, including carbon fiber foils, e-glass struts, and a steel shaft. The report covers the production of each of these elemen...
Barrington, M. Ocean Renewable Power Company
Jan 30, 2023
1 Resources
0 Stars
Awaiting release

TEAMER: Crossflow Turbine Fairing Geometry Optimization Report and CFD Modeling Files

The dataset includes computational fluid dynamics (CFD) models and simulation files for crossflow turbines as well as a detailed project report. The report documents the project undertaken by the Ocean Renewable Power Company (ORPC) to design and optimize a modular fairing for the...
McEntee, J. Ocean Renewable Power Company
Aug 08, 2024
3 Resources
0 Stars
Curated

Direct-Drive Electrical Generator and PTO System for Flap-type Wave Energy Converters

Project and generator specifications and initial prototype test data for flap-type wave energy converters (WEC)
Englebretson, S. ABB Inc.
Mar 20, 2015
2 Resources
0 Stars
Publicly accessible

TEAMER: Initial Testing of Wave Energy-Powered UV-C LED Anti-Biofouling System, Post-Access Report, 3newable LLC

Biofouling severely limits the quality of data coming from buoy-mounted sensors. 3newable is co-developing a unique solution to the biofouling problem together with the Ocean Observatories Initiative (OOI) at WHOI to design and build a buoy-mounted WEC as an integrated power sourc...
Minsky, M. et al 3newable LLC
Sep 20, 2022
2 Resources
0 Stars
Publicly accessible

TEAMER: xWave Real Time IMU Optimization for Advanced Controls

CalWave is developing a wave energy converter (WEC) called xWave that operates fully submerged and is classified as a type of submerged pressure differential WEC. As ocean waves pass over the submerged wave buoy, a pressure differential is created, exciting the absorber in multipl...
Spinneken, J. and Boerner, T. CalWave Power Technologies Inc.
Apr 18, 2023
2 Resources
0 Stars
Curated

Triton: Survivability Enhancement of a Multi-Mode Point Absorber

The overall goal of this project was to design and validate a survival mode for the Triton WEC that allows for a reduction in peak loads, while simultaneously allowing for a reduction of capital cost due to the elimination of overdesign to account for uncertainty. In addition, the...
Mundon, T. and Rosenberg, B. Oscilla Power, Inc.
Sep 28, 2018
11 Resources
0 Stars
Publicly accessible

TEAMER: Electrically Engaged Undulation System for Unmanned Underwater Vehicles

This TEAMER RFTS 1 (Request for Technical Support) project supported the flume tank testing of a long range, high endurance unmanned underwater vehicle (UUV) to monitor maritime space. Today, battery-powered remotely operated vehicles (ROVs) lack the duration to make persistent, w...
Lu, K. and Datla, R. Pyro-E
Oct 01, 2021
4 Resources
0 Stars
Publicly accessible

H3 StingRAY Final Design and Technical Report

The goal of this Project was to develop a standards-compliant, fabrication-ready design of Columbia Power Technologies' (C-Power) next-generation wave energy converter (WEC), the StingRAY H3. The H3 is a design iteration of C-Power's StingRAY WEC and is intended for electrical pow...
Prudell, J. and Lenee-Bluhm, P. Columbia Power Technologies, Inc.
Sep 15, 2023
2 Resources
0 Stars
Publicly accessible

TEAMER: Additional Degree of Freedom for WEC Model

'Additional Degree of Freedom for WEC' WEC-Sim numerical model from RFTS 1 (request for technical support) TEAMER project. An increase in wave energy converter (WEC) efficiency requires not only consideration of the nonlinear effects in the WEC dynamics and the power take-off (PTO...
McCall, A. et al Dehlsen Associates, LLC
May 26, 2022
2 Resources
0 Stars
Curated

Tidal Energy Site Characterization East Forelands Alaska

During the summer field season in 2012, Benthic GeoScience Inc. (Benthic) mobilized under contract with Ocean Renewable Power Company (ORPC) in order to conduct precise geospatial measurements of the seafloor accomplishing a preliminary Site Characterization Study for the ORPC Eas...
Worthington, M. National Renewable Energy Laboratory
Apr 01, 2013
2 Resources
0 Stars
Curated

Performance estimation of resonance-enhanced dual-buoy wave energy converter using coupled time-domain simulation

This paper presents the modeling methodology and performance evaluation of the resonance-enhanced dual-buoy WEC (Wave Energy Converter) by HEM (hydrodynamic & electro-magnetic) fully-coupled-dynamics time-domain-simulation program. The numerical results are systematically compared...
Kang, H. et al Texas A&M University
Aug 31, 2020
3 Resources
0 Stars
Publicly accessible

LCOE Baseline for RME Surge WEC Device

This submission includes all the data to support an LCOE baseline assessment for the Resolute Marine Energy (RME) Surge WEC device.
Previsic, M. et al Re Vision Consulting
Jul 19, 2017
4 Resources
0 Stars
Publicly accessible

Control-based optimization for tethered tidal kite

This submission includes three peer-reviewed (under review) papers from the researchers at North Carolina State University presenting control-based techniques to maximize effectiveness of a tethered tidal kite. Below are the abstracts of each file included in the submission. Cobb...
Vermillion, C. et al North Carolina State University
Mar 02, 2020
3 Resources
0 Stars
Publicly accessible

RivGen Deployment Control System Specifications and Models, Igiugig, AK

Control System simulation models, case studies, and processing codes for analyzing field data. Raw data files included from VFD and SCADA. MatLab and Simulink are required to open some data files and all model files.
Forbush, D. et al Ocean Renewable Power Company
Mar 21, 2016
2 Resources
0 Stars
Publicly accessible

M3 Wave DMP/APEX WEC Downselected System Overviews

In 2014, open water testing revealed that sediment scour around and under the device was significant and likely interrupted operations. To explore methods to mitigate this phenomenon, M3 developed a number of alternate concepts as detailed in concept sketches. This submission incl...
Morrow, M. and Delos-Reyes, M. M3 Wave
Sep 29, 2017
1 Resources
0 Stars
Publicly accessible

Optimal kite control in spatiotemporally varying flow fields ACC 2021

Two papers submitted (and accepted) to the 2021 American Control Conference (ACC), both focused on different attributes of kite control in variable flow environments. Siddiqui et. al. focuses on tether elevation angle control in a spatiotemporally varying environment, and Reed et....
Vermillion, C. et al North Carolina State University
Sep 14, 2020
2 Resources
0 Stars
Publicly accessible

UNH TDP Voltsys Raw Data and Processing Scripts Fall 2021

This submission contains raw Voltsys rectifier data and processing scripts associated with MHKDR submission 394 (UNH TDP Concurrent Measurements of Inflow, Power Performance, and Loads for a Grid-Synchronized Vertical Axis Cross-Flow Turbine Operating in a Tidal Estuary, DOI: 10.1...
Bharath, A. et al National Renewable Energy Laboratory
Dec 21, 2021
4 Resources
0 Stars
Publicly accessible

Accelerated Lifetime Testing of Main Shaft Seals for Tidal Turbine Rotors

The lifetime assessment experimental platform described in this report is specifically designed for testing the low-speed main shaft seal for Verdant Power's (Verdant Power Inc., New York, New York) fifth-generation (Gen5) underwater power generation turbine. This project is joint...
Murray, R. et al National Renewable Energy Laboratory
Jul 01, 2024
1 Resources
0 Stars
Curated

MASK2B Initial Results from Wave Tank Test of Closed-Loop WEC Control

This dataset covers the MASK2B wave tank experiment focused on a more complete study of one degree of freedom (1DOF) control of the WEC was considered, including maximization of electrical power, multi-objective performance mapping, and implementation of a novel predictionless con...
Coe, R. et al Sandia National Laboratories
May 25, 2018
3 Resources
0 Stars
Publicly accessible

Advanced WEC Dynamics and Controls, Test 1

Numerous studies have shown that advanced control of a wave energy converter's (WEC's) power take off (PTO) can provide significant increases (on the order of 200-300%) in WEC energy absorption. Transitioning these control approaches from simplified paper studies to application in...
Coe, R. Sandia National Laboratories
Feb 26, 2016
3 Resources
0 Stars
Publicly accessible

StingRAY Structural Optimization Final Technical Report

The overall project objective is to materially decrease the leveled cost of energy (LCOE) of the Columbia Power (CPower) StingRAY utility-scale wave energy converter (WEC). This will be achieved by reducing structural material and manufacturing costs and increasing energy output. ...
Lenee-Bluhm, P. Columbia Power Technologies, Inc.
Aug 05, 2020
2 Resources
0 Stars
Publicly accessible

Geometric, structural, and control co-design for undersea kites

Focusing on a marine hydrokinetic energy application, this paper presents a combined geometric, structural, and control co-design framework for optimizing the performance of energy-harvesting kites subject to structural constraints. While energy-harvesting kites can offer more tha...
Vermillion, C. et al North Carolina State University
Sep 14, 2020
1 Resources
0 Stars
Publicly accessible

CalWave xWave Device, Non-Commercially Sensitive Project Report

CalWave has developed a submerged pressure differential type Wave Energy Converter (WEC) architecture called xWave. The single body device oscillates submerged, is positively buoyant, and taut moored to the sea floor and integrates novel features such as absorber submergence depth...
Lehmann, M. and Davidson, R. CalWave Power Technologies Inc.
Feb 29, 2024
1 Resources
0 Stars
Publicly accessible
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