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

Multi-resonant feedback control of multiple degree-of-freedom wave energy converters

Patent ·
OSTI ID:1600327
; ; ; ; ; ;
Multi-resonant control of a 3 degree-of-freedom (heave-pitch-surge) wave energy converter enables energy capture that can be in the order of three times the energy capture of a heave-only wave energy converter. The invention uses a time domain feedback control strategy that is optimal based on the criteria of complex conjugate control. The multi-resonant control can also be used to shift the harvested energy from one of the coupled modes to another, enabling the elimination of one of the actuators otherwise required in a 3 degree-of-freedom wave energy converter. This feedback control strategy does not require wave prediction; it only requires the measurement of the buoy position and velocity.
Research Organization:
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (United States); Michigan Technological Univ., Houghton, MI (United States); South Dakota Board of Regents, Pierre, SD (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
DOE Contract Number:
NA0003525
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); Michigan Technological University (Houghton, MI); South Dakota Board of Regents (Pierre, SD)
Patent Number(s):
10,488,828
Application Number:
15/830,770
OSTI ID:
1600327
Country of Publication:
United States
Language:
English

References (10)

A Comparison of Selected Strategies for Adaptive Control of Wave Energy Converters journal March 2011
Optimal causal control of a wave energy converter in a random sea journal August 2013
Hierarchical Robust Control of Oscillating Wave Energy Converters With Uncertain Dynamics journal July 2014
Energy-Maximizing Control of Wave-Energy Converters: The Development of Control System Technology to Optimize Their Operation journal September 2014
Optimal control of nonlinear wave energy point converters journal November 2013
Constrained Optimal Control of a Heaving Buoy Wave-Energy Converter journal November 2010
On the control design of wave energy converters with wave prediction journal April 2016
A Simple and Effective Real-Time Controller for Wave Energy Converters journal January 2013
Wave energy converter control by wave prediction and dynamic programming journal December 2012
On Control of a Pitching and Surging Wave Energy Converter journal July 2011

Similar Records

Multiresonant Feedback Control of a Three-Degree-of-Freedom Wave Energy Converter
Journal Article · Sun Apr 09 20:00:00 EDT 2017 · IEEE Transactions on Sustainable Energy · OSTI ID:1492375
Multi-resonant feedback control of a single degree-of-freedom wave energy converter
Patent · Tue Sep 24 00:00:00 EDT 2019 · OSTI ID:1576282
Model Predictive Control of parametric excited pitch-surge modes in wave energy converters
Journal Article · Tue May 30 20:00:00 EDT 2017 · International Journal of Marine Energy · OSTI ID:1485453

Related Subjects

16 TIDAL AND WAVE POWER