TY - JOUR
T1 - An Anti-Windup Mechanism for State Constrained Linear Control of Wave Energy Conversion Systems
T2 - Design, Synthesis, and Experimental Assessment
AU - Faedo, Nicolas
AU - Carapellese, Fabio
AU - Papini, Guglielmo
AU - Pasta, Edoardo
AU - Mosquera, Facundo D.
AU - Ferri, Francesco
AU - Brekken, Ted K.A.
N1 - Publisher Copyright:
© 2010-2012 IEEE.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - Motivated by the necessity of suitable state constraint mechanisms within linear time-invariant (LTI) energy-maximising control of wave energy converters (WECs), we present, in this article, an anti-windup (AW) scheme for state constraint satisfaction, where the associated unconstrained controller is designed via impedance-matching theory for WEC systems. As in the standard (input) AW scenario, the adopted technique provides a mechanism for 'informing' the (unconstrained) controller when constraints are active, so that appropriate modifications to future control actions can be taken accordingly. The overall adopted AW technique is tested experimentally, on a prototype of the Wavestar WEC system, available at Aalborg University (Denmark). We explicitly demonstrate that the proposed AW scheme is able to consistently respect the defined state constraints, having a mild impact on overall energy absorption performance when compared to its unconstrained counterpart.
AB - Motivated by the necessity of suitable state constraint mechanisms within linear time-invariant (LTI) energy-maximising control of wave energy converters (WECs), we present, in this article, an anti-windup (AW) scheme for state constraint satisfaction, where the associated unconstrained controller is designed via impedance-matching theory for WEC systems. As in the standard (input) AW scenario, the adopted technique provides a mechanism for 'informing' the (unconstrained) controller when constraints are active, so that appropriate modifications to future control actions can be taken accordingly. The overall adopted AW technique is tested experimentally, on a prototype of the Wavestar WEC system, available at Aalborg University (Denmark). We explicitly demonstrate that the proposed AW scheme is able to consistently respect the defined state constraints, having a mild impact on overall energy absorption performance when compared to its unconstrained counterpart.
KW - anti-windup
KW - impedance-matching
KW - linear control
KW - state constraints
KW - Wave energy
KW - WEC
UR - http://www.scopus.com/inward/record.url?scp=85173342083&partnerID=8YFLogxK
U2 - 10.1109/TSTE.2023.3320190
DO - 10.1109/TSTE.2023.3320190
M3 - Journal article
AN - SCOPUS:85173342083
SN - 1949-3029
VL - 15
SP - 964
EP - 973
JO - IEEE Transactions on Sustainable Energy
JF - IEEE Transactions on Sustainable Energy
IS - 2
ER -