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"feedforward controls"×

Advanced Control Systems for Wave Energy Converters

This submission contains several papers, a final report, descriptions of a theoretical framework for two types of control systems, and descriptions of eight real-time flap load control policies with the objective of assessing the potential improvement of annual average capture eff...
Scruggs, J. et al Resolute Marine Energy, Inc.
Jan 30, 2017
4 Resources
0 Stars
Publicly accessible

Centipod WEC, Advanced Controls, Final Technical Report

Final Technical Report for "Advanced Controls for the Multi-pod Centipod WEC device" describing project parameters, organization, task activities, accomplishments, and conclusions. See other submissions under this DOE project for economic viability, design geometry, and modeling.
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
1 Resources
0 Stars
Publicly accessible

WEC Controls Optimization Final Report

The over-arching project objective is to fully develop and validate optimal controls frameworks that can subsequently be applied widely to different WEC devices and concepts. Optimal controls of WEC devices represent a fundamental building block for WEC designers that must be cons...
Previsic, M. and Karthikeyan, A. Re Vision Consulting
Aug 26, 2020
1 Resources
0 Stars
Publicly accessible

Centipod WEC, Advanced Controls, Quarterly Technical Report

Quarterly Technical Report for "Advanced Controls for the Multi-pod Centipod WEC device" describing project parameters, organization, task activities, accomplishments, and conclusions. See other submissions under this DOE project for economic viability, design geometry, and modeli...
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
2 Resources
0 Stars
Publicly accessible

Centipod WEC, Advanced Controls, MPC Controller MATLAB Code

This archive contains the MATLAB code for the model predictive control (MPC) controller developed in this project. The archive containing the WaveDyn models used for analysis of the Centipod with the MPC controller is linked in this submission.
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
3 Resources
0 Stars
Publicly accessible

MASK3 for Advanced WEC Dynamics and Controls

This report outlines the "MASK3" wave tank test within the Advanced WEC Dynamics and Controls (AWDC) project. This test represents the final test in the AWDC project. The focus of the MASK3 test was to consider coordinated 3-degree-of-freedom (3DOF) control of a WEC in a realistic...
Coe, R. et al Sandia National Laboratories
May 01, 2019
4 Resources
0 Stars
Publicly accessible

Wave Carpet Controls Design Optimization

To assess CalWave's submerged Wave Carpet Technology for system performance advancement, CalWave seeks to test advanced controls methodologies on a simplified wave carpet model, which potentially can be used in further research to leverage the design to a full wave carpet assessme...
Previsic, M. and Karthikeyan, A. Re Vision Consulting
Aug 26, 2020
1 Resources
0 Stars
Awaiting release

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

Centipod WEC, Advanced Controls, WaveDyn Models

Archive containing the WaveDyn models used for analysis of the Centipod WEC with and without Advanced Controls, i.e. the WaveDyn files contain a baseline model which can be run alone, and a model predictive control (MPC) model which must be run when connected to the MPC controller...
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
3 Resources
0 Stars
Publicly accessible

State Estimation for advanced control of wave energy converters

A report on state estimation for advanced control of wave energy converters (WECs), with supporting data models and slides from the overview presentation. The methods discussed are intended for use to enable real-time closed loop control of WECs.
Coe, R. and Bacelli, G. Sandia National Laboratories
Apr 25, 2017
6 Resources
0 Stars
Publicly accessible

Centipod WEC, Advanced Controls, WEC Geometry CAD

CAD files depicting the wetted geometry of the Centipod WEC used in numerical models during this project. This includes the wetted geometry of the point absorber body ('pod') and the WEC 'backbone'.
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
3 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

Azura Advanced Controls 1/15th Scale Wave Tank Testing

Experimental data from the wave tank test of the Advanced control systems developed by Northwest Energy Innovations (NWEI) for the Azura at the University of Maine in Orono (UMO). Summary data is included utilizing the WEC Lab Testing Content Model v2.1. All raw and processed expe...
Ling, B. Northwest Energy Innovations
Feb 02, 2018
10 Resources
0 Stars
Publicly accessible

RivGen Power System Overview, Igiugig, AK

System description of ORPC RivGen(R) Power System utilized at Igiugig, AK for testing of advanced controls
McEntee, J. Ocean Renewable Power Company
Aug 05, 2014
1 Resources
0 Stars
Publicly accessible

Holistic Control Embedded PTO Development Target Performance Metrics Definitions

Collection of Power Take-Off (PTO), Power Conversion Chain (PCC), and relevant device metrics to be used for performance assessment of the Control co-designed PTO including brief summary of literature, baseline, and target metrics values.
Boerner, T. et al CalWave Power Technologies Inc.
Jul 30, 2019
1 Resources
0 Stars
Awaiting release

TidGen LCOE Workbooks

Workbooks showing Annualized Energy Production, Cost Breakdown Structure, Levelized Cost of Electricity for DOE Reference Tidal Project 1) Baseline TidGen Power System 2) TidGen Power System with the application of Advanced Controls 3) Advanced TidGen Power System with several enh...
McEntee, J. Ocean Renewable Power Company
Mar 21, 2016
1 Resources
0 Stars
Publicly accessible

Centipod WEC, Advanced Controls, Baseline LCOE

Project baseline levelized cost of energy (LCOE) model for the Centipod WEC containing annual energy production (AEP) data, a cost breakdown structure (CBS), model documentation, and the LCOE content model. This baseline was built for comparison with the resultant LCOE model, buil...
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
7 Resources
0 Stars
Publicly accessible

Centipod WEC, Advanced Controls, Resultant LCOE

Project resultant levelized cost of energy (LCOE) model after implementation of model predictive control (MPC) controller. Contains annual energy production (AEP) data, cost breakdown structure (CBS), model documentation, and the LCOE content model. This is meant for comparison wi...
McCall, A. Dehlsen Associates, LLC
Feb 15, 2016
7 Resources
0 Stars
Publicly accessible

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

CalWave First Iterative PTO Description

This documents summarizes a preliminary first iterative design of a PTO device developed by CalWave. The document includes controls, hydraulic, and electric architectures from the first iteration of the CalWave PTO design that match requirements set out by the "CalWave Holistic PT...
Kojimoto, N. et al CalWave Power Technologies Inc.
Dec 06, 2021
2 Resources
0 Stars
Awaiting release

Wave Tank Testing of 1-DoF Heaving Buoy for Controls Validation Purposes

This submission includes the wave tank testing data used to validate the controls optimization efforts of a heaving 1-DoF buoy.
Previsic, M. et al Re Vision Consulting
Jul 13, 2017
4 Resources
0 Stars
Publicly accessible

LCOE Content Model for the Heaving Point Absorber Buoy

This is the LCOE analysis spreadsheet and content model for the heaving point absorber buoy developed for controls purposes. The cost assessment was done on a wave-farm of 100-units.
Previsic, M. and Karthikeyan, A. Re Vision Consulting
Jul 14, 2017
3 Resources
0 Stars
Publicly accessible

Wave Tank Testing Report for Controls Validation of a Heaving Point Absorber

The core objectives of this project is to improve the power capture of three different wave energy conversion (WEC) devices by more than 50% using an advanced control system and validate the attained improvements using wave tank and full scale testing. In parallel, we will bring a...
Previsic, M. et al Re Vision Consulting
Aug 26, 2020
3 Resources
0 Stars
Publicly accessible

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

FOSWEC v2: System identification and control testing at Hinsdale Wave Research Laboratory

This report summarizes the design and execution of a wave tank test of the floating oscillating surge wave energy converter (FOSWEC) in the O.H. Hinsdale Wave Research Laboratory Directional Wave Basin at Oregon State University. This device, which uses two "flaps" that pivot abou...
Coe, R. et al Sandia National Laboratories
Feb 01, 2020
2 Resources
0 Stars
Publicly accessible
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