Self-tuning wave energy converter (WEC) controller for changing sea states
Abstract
Systems and methods for a WEC controller that uses a self-tuning proportional-integral control law prescribing motor torques to maximize electrical power generation and automatically tune the controller to maximize power absorption. In an embodiment, the controller may be part of any resonant WEC system. The control law relies upon an identified model of device intrinsic impedance to generate a frequency-domain estimate of the wave-induced excitation force and measurements of device velocities. The control law was tested in irregular sea-states that evolved over hours (a rapid, but realistic time-scale) and that changed instantly (an unrealistic scenario to evaluate controller response).
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 2221982
- Patent Number(s):
- 11703027
- Application Number:
- 17/866,083
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- DOE Contract Number:
- NA0003525
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 07/15/2022
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Bacelli, Giorgio, Wilson, David G., Forbush, Dominic, Spencer, Steven J., and Coe, Ryan G. Self-tuning wave energy converter (WEC) controller for changing sea states. United States: N. p., 2023.
Web.
Bacelli, Giorgio, Wilson, David G., Forbush, Dominic, Spencer, Steven J., & Coe, Ryan G. Self-tuning wave energy converter (WEC) controller for changing sea states. United States.
Bacelli, Giorgio, Wilson, David G., Forbush, Dominic, Spencer, Steven J., and Coe, Ryan G. Tue .
"Self-tuning wave energy converter (WEC) controller for changing sea states". United States. https://www.osti.gov/servlets/purl/2221982.
@article{osti_2221982,
title = {Self-tuning wave energy converter (WEC) controller for changing sea states},
author = {Bacelli, Giorgio and Wilson, David G. and Forbush, Dominic and Spencer, Steven J. and Coe, Ryan G.},
abstractNote = {Systems and methods for a WEC controller that uses a self-tuning proportional-integral control law prescribing motor torques to maximize electrical power generation and automatically tune the controller to maximize power absorption. In an embodiment, the controller may be part of any resonant WEC system. The control law relies upon an identified model of device intrinsic impedance to generate a frequency-domain estimate of the wave-induced excitation force and measurements of device velocities. The control law was tested in irregular sea-states that evolved over hours (a rapid, but realistic time-scale) and that changed instantly (an unrealistic scenario to evaluate controller response).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {7}
}
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Works referenced in this record:
Model Predictive Control Tuning by Inverse Matching for a Wave Energy Converter
journal, October 2019
- Cho, Hancheol; Bacelli, Giorgio; Coe, Ryan G.
- Energies, Vol. 12, Issue 21