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

Nikhar Abbas; Nathan Tom

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

Nikhar Abbas, Nathan Tom

National Wind Technology Center

Research output: Contribution to conference › Paper › peer-review

1 Scopus Citations

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.

Original language	American English
Pages	91-100
Number of pages	10
State	Published - 2017
Event	27th International Ocean and Polar Engineering Conference, ISOPE 2017 - San Francisco, United States Duration: 25 Jun 2017 → 30 Jun 2017

Conference

Conference	27th International Ocean and Polar Engineering Conference, ISOPE 2017
Country/Territory	United States
City	San Francisco
Period	25/06/17 → 30/06/17

Bibliographical note

See NREL/CP-5000-67981 for preprint

NREL Publication Number

NREL/CP-5000-70752

Keywords

Autoregressive parameterization
Model predictive control
Wave energy converter
Wave forecast

Cite this

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title = "Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation",

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.",

keywords = "Autoregressive parameterization, Model predictive control, Wave energy converter, Wave forecast",

author = "Nikhar Abbas and Nathan Tom",

note = "See NREL/CP-5000-67981 for preprint; 27th International Ocean and Polar Engineering Conference, ISOPE 2017 ; Conference date: 25-06-2017 Through 30-06-2017",

year = "2017",

language = "American English",

pages = "91--100",

}

TY - CONF

T1 - Utilization of Model Predictive Control to Balance Power Absorption Against Load Accumulation

AU - Abbas, Nikhar

AU - Tom, Nathan

N1 - See NREL/CP-5000-67981 for preprint

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

KW - Autoregressive parameterization

KW - Model predictive control

KW - Wave energy converter

KW - Wave forecast

UR - http://www.scopus.com/inward/record.url?scp=85038913337&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85038913337

SP - 91

EP - 100

T2 - 27th International Ocean and Polar Engineering Conference, ISOPE 2017

Y2 - 25 June 2017 through 30 June 2017

ER -

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

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

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Cite this