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Title: A comparison of control strategies for wave energy converters

Abstract

In this study, we employ a numerical model to compare the performance of a number of wave energy converter control strategies. The controllers selected for evaluation span a wide range in their requirements for implementation. Each control strategy is evaluated using a single numerical model with a set of sea states to represent a deployment site off the coast of Newport, OR. A number of metrics, ranging from power absorption to kinematics, are employed to provide a comparison of each control strategy’s performance that accounts for both relative benefits and costs. The results show a wide range of performances from the different controllers and highlight the need for a holistic design approach which considers control design as a parallel component within the larger process WEC design.

Authors:
 [1];  [1];  [1]; ORCiD logo [2];  [2];  [2]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Michigan Technological Univ., Houghton, MI (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office; USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1429708
Alternate Identifier(s):
OSTI ID: 1549101
Report Number(s):
SAND-2017-13267J
Journal ID: ISSN 2214-1669; 659349
Grant/Contract Number:  
AC04-94AL85000; NA0003525
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
International Journal of Marine Energy
Additional Journal Information:
Journal Volume: 20; Journal Issue: C; Journal ID: ISSN 2214-1669
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY

Citation Formats

Coe, Ryan G., Bacelli, Giorgio, Wilson, David G., Abdelkhalik, Ossama, Korde, Umesh A., and Robinett III, Rush D. A comparison of control strategies for wave energy converters. United States: N. p., 2017. Web. doi:10.1016/j.ijome.2017.11.001.
Coe, Ryan G., Bacelli, Giorgio, Wilson, David G., Abdelkhalik, Ossama, Korde, Umesh A., & Robinett III, Rush D. A comparison of control strategies for wave energy converters. United States. https://doi.org/10.1016/j.ijome.2017.11.001
Coe, Ryan G., Bacelli, Giorgio, Wilson, David G., Abdelkhalik, Ossama, Korde, Umesh A., and Robinett III, Rush D. 2017. "A comparison of control strategies for wave energy converters". United States. https://doi.org/10.1016/j.ijome.2017.11.001. https://www.osti.gov/servlets/purl/1429708.
@article{osti_1429708,
title = {A comparison of control strategies for wave energy converters},
author = {Coe, Ryan G. and Bacelli, Giorgio and Wilson, David G. and Abdelkhalik, Ossama and Korde, Umesh A. and Robinett III, Rush D.},
abstractNote = {In this study, we employ a numerical model to compare the performance of a number of wave energy converter control strategies. The controllers selected for evaluation span a wide range in their requirements for implementation. Each control strategy is evaluated using a single numerical model with a set of sea states to represent a deployment site off the coast of Newport, OR. A number of metrics, ranging from power absorption to kinematics, are employed to provide a comparison of each control strategy’s performance that accounts for both relative benefits and costs. The results show a wide range of performances from the different controllers and highlight the need for a holistic design approach which considers control design as a parallel component within the larger process WEC design.},
doi = {10.1016/j.ijome.2017.11.001},
url = {https://www.osti.gov/biblio/1429708}, journal = {International Journal of Marine Energy},
issn = {2214-1669},
number = C,
volume = 20,
place = {United States},
year = {Wed Nov 15 00:00:00 EST 2017},
month = {Wed Nov 15 00:00:00 EST 2017}
}

Works referenced in this record:

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Optimal latching control of a wave energy device in regular and irregular waves
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Optimal causal control of a wave energy converter in a random sea
journal, August 2013


Maximisation of Energy Capture by a Wave-Energy Point Absorber using Model Predictive Control
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Nonlinear time-domain performance model for a wave energy converter in three dimensions
conference, September 2014


System Identification of a Heaving Point Absorber: Design of Experiment and Device Modeling
journal, April 2017


On the control design of wave energy converters with wave prediction
journal, April 2016


Approximate On-Off Low-Thrust Space Trajectories Using Fourier Series
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Constraint Low-Thrust Trajectory Planning in Three-Body Dynamic Models: Fourier Series Approach
conference, August 2014


A review of pseudospectral optimal control: From theory to flight
journal, December 2012


The pseudospectral Legendre method for discretizing optimal control problems
journal, January 1995


Filter approaches to wave kinematics approximation
journal, January 1986


Reactive versus latching phase control of a two-body heaving wave energy converter
conference, August 2009


Works referencing / citing this record:

A Strategy of Robust Control for the Dynamics of an Unmanned Surface Vehicle under Marine Waves and Currents
journal, March 2019