TY - GEN
T1 - Wave excitation force estimation for a multi-DoF WEC via a cubature Kalman filter
T2 - 2021 40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021
AU - Nguyen, Hoai Nam
AU - Tona, Paolino
AU - Mérigaud, Alexis
AU - Cocho, Mathieu
AU - Pichard, Alexandre
N1 - Publisher Copyright:
Copyright © 2021 by ASME
PY - 2021/1/1
Y1 - 2021/1/1
N2 - This paper presents the design and implementation of a wave excitation force estimator based on the cubature Kalman filter (CKF) for a CETO 6, a submersed wave energy converter controlled using three power take-off systems attached to the tether lines. Wave excitation force estimation is required by many advanced wav energy converter (WEC) control approaches. However, contrary to the single degree-of-freedom (1-DoF) case, the literature on the design of wave estimators is quite scarce for devices with multiple degrees-of-freedom. The advantages of CKF wave estimator described in the paper are its performance and ease of tuning when working with a high-order system, as it is the case for the 6-DoF linear model used for the design. Preliminary results for all the 6 directions are presented in nominal conditions and also in mismatch conditions, where the estimator is applied to a full nonlinear model of the system, under the action of long-crested and short-crested waves.
AB - This paper presents the design and implementation of a wave excitation force estimator based on the cubature Kalman filter (CKF) for a CETO 6, a submersed wave energy converter controlled using three power take-off systems attached to the tether lines. Wave excitation force estimation is required by many advanced wav energy converter (WEC) control approaches. However, contrary to the single degree-of-freedom (1-DoF) case, the literature on the design of wave estimators is quite scarce for devices with multiple degrees-of-freedom. The advantages of CKF wave estimator described in the paper are its performance and ease of tuning when working with a high-order system, as it is the case for the 6-DoF linear model used for the design. Preliminary results for all the 6 directions are presented in nominal conditions and also in mismatch conditions, where the estimator is applied to a full nonlinear model of the system, under the action of long-crested and short-crested waves.
KW - Cubature Kalman filter
KW - Kalman filters
KW - Multiple degrees-of-freedom
KW - Wave energy converters
KW - Wave excitation force estimation
U2 - 10.1115/OMAE2021-64189
DO - 10.1115/OMAE2021-64189
M3 - Conference contribution
AN - SCOPUS:85117103074
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Ocean Renewable Energy
PB - American Society of Mechanical Engineers (ASME)
Y2 - 21 June 2021 through 30 June 2021
ER -