Multi-resonant feedback control of multiple degree-of-freedom wave energy converters
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- 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 Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1600327
- Patent Number(s):
- 10,488,828
- Application Number:
- 15/830,770
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); Michigan Technological University (Houghton, MI); South Dakota Board of Regents (Pierre, SD)
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 12/04/2017
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 16 TIDAL AND WAVE POWER
Citation Formats
Abdelkhalik, Ossama, Zou, Shangyan, Robinett, III, Rush D., Wilson, David G., Bacelli, Giorgio, Coe, Ryan Geoffrey, and Korde, Umesh. Multi-resonant feedback control of multiple degree-of-freedom wave energy converters. United States: N. p., 2019.
Web.
Abdelkhalik, Ossama, Zou, Shangyan, Robinett, III, Rush D., Wilson, David G., Bacelli, Giorgio, Coe, Ryan Geoffrey, & Korde, Umesh. Multi-resonant feedback control of multiple degree-of-freedom wave energy converters. United States.
Abdelkhalik, Ossama, Zou, Shangyan, Robinett, III, Rush D., Wilson, David G., Bacelli, Giorgio, Coe, Ryan Geoffrey, and Korde, Umesh. Tue .
"Multi-resonant feedback control of multiple degree-of-freedom wave energy converters". United States. https://www.osti.gov/servlets/purl/1600327.
@article{osti_1600327,
title = {Multi-resonant feedback control of multiple degree-of-freedom wave energy converters},
author = {Abdelkhalik, Ossama and Zou, Shangyan and Robinett, III, Rush D. and Wilson, David G. and Bacelli, Giorgio and Coe, Ryan Geoffrey and Korde, Umesh},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {11}
}
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Works referenced in this record:
Controller for a wave energy converter
patent, September 2015
- Wilson, David G.; Bull, Diana L.; Robinett, III, Rush D.
- US Patent Document 9,140,231