Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

A comparison of control strategies for wave energy converters

Journal Article · · International Journal of Marine Energy
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.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Hydropower Technology Program (EE-2B)
Grant/Contract Number:
AC04-94AL85000; NA0003525
OSTI ID:
1429708
Alternate ID(s):
OSTI ID: 1549101
Report Number(s):
SAND--2017-13267J; 659349
Journal Information:
International Journal of Marine Energy, Journal Name: International Journal of Marine Energy Journal Issue: C Vol. 20; ISSN 2214-1669
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (18)

On the control design of wave energy converters with wave prediction journal April 2016
Numerical method for computing the power absorbed by a phase-controlled point absorber journal July 1982
Filter approaches to wave kinematics approximation journal January 1986
On non-causal impulse response functions related to propagating water waves journal December 1995
Optimal latching control of a wave energy device in regular and irregular waves journal April 2006
Optimal causal control of a wave energy converter in a random sea journal August 2013
A review of pseudospectral optimal control: From theory to flight journal December 2012
A theory for wave-power absorption by oscillating bodies journal September 1976
The pseudospectral Legendre method for discretizing optimal control problems journal January 1995
Nonlinear time-domain performance model for a wave energy converter in three dimensions conference September 2014
A Comparison of Selected Strategies for Adaptive Control of Wave Energy Converters journal March 2011
Advanced WEC Dynamics & Controls FY16 Testing Report journal October 2016
Reactive versus latching phase control of a two-body heaving wave energy converter conference August 2009
Approximate On-Off Low-Thrust Space Trajectories Using Fourier Series journal September 2012
Constraint Low-Thrust Trajectory Planning in Three-Body Dynamic Models: Fourier Series Approach conference August 2014
Maximisation of Energy Capture by a Wave-Energy Point Absorber using Model Predictive Control journal January 2011
System Identification of a Heaving Point Absorber: Design of Experiment and Device Modeling journal April 2017
Time- vs. Frequency-domain Identification of Parametric Radiation Force Models for Marine Structures at Zero Speed journal January 2008

Cited By (1)

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

Similar Records

A comparison of WEC control strategies
Technical Report · Fri Apr 01 00:00:00 EDT 2016 · OSTI ID:1431291

The wave energy converter control competition (WECCCOMP): Wave energy control algorithms compared in both simulation and tank testing
Journal Article · Wed Jul 19 20:00:00 EDT 2023 · Applied Ocean Research · OSTI ID:1995177

Related Subjects