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Title: Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation: Preprint

Abstract

Wave energy converter (WEC) control strategies have been primarily focused on maximizing power absorption. The use of model predictive control strategies allows for a finite-horizon, multiterm objective function to be solved. This work utilizes a multiterm objective function to maximize power absorption while minimizing the structural loads on the WEC system. Furthermore, a Kalman filter and autoregressive model were used to estimate and forecast the wave exciting force and predict the future dynamics of the WEC. The WEC's power-take-off time-averaged power and structural loads under a perfect forecast assumption in irregular waves were compared against results obtained from the Kalman filter and autoregressive model to evaluate model predictive control performance.

Authors:
;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE National Renewable Energy Laboratory (NREL), Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1379459
Report Number(s):
NREL/ CP-5000-67981
DOE Contract Number:
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the Annual International Offshore and Polar Engineering Conference (ISOPE), 25-30 June 2017, San Francisco, California
Country of Publication:
United States
Language:
English
Subject:
16 TIDAL AND WAVE POWER; wave energy converter; model predictive control; autoregressive parameterization; wave forecast; NREL

Citation Formats

Abbas, Nikhar, and Tom, Nathan. Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation: Preprint. United States: N. p., 2017. Web.
Abbas, Nikhar, & Tom, Nathan. Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation: Preprint. United States.
Abbas, Nikhar, and Tom, Nathan. Fri . "Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation: Preprint". United States. doi:. https://www.osti.gov/servlets/purl/1379459.
@article{osti_1379459,
title = {Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation: Preprint},
author = {Abbas, Nikhar and Tom, Nathan},
abstractNote = {Wave energy converter (WEC) control strategies have been primarily focused on maximizing power absorption. The use of model predictive control strategies allows for a finite-horizon, multiterm objective function to be solved. This work utilizes a multiterm objective function to maximize power absorption while minimizing the structural loads on the WEC system. Furthermore, a Kalman filter and autoregressive model were used to estimate and forecast the wave exciting force and predict the future dynamics of the WEC. The WEC's power-take-off time-averaged power and structural loads under a perfect forecast assumption in irregular waves were compared against results obtained from the Kalman filter and autoregressive model to evaluate model predictive control performance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2017},
month = {Fri Sep 01 00:00:00 EDT 2017}
}

Conference:
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