TY - GEN
T1 - A control algorithm for active/passive hydraulic winches used in active heave compensation
AU - Moslått, Geir Arne
AU - Padovani, Damiano
AU - Hansen, Michael R.
N1 - Publisher Copyright:
Copyright © 2019 ASME
PY - 2020
Y1 - 2020
N2 - The most common active heave compensated offshore cranes have hydraulic winch systems. This paper investigates an active/passive hydraulic winch system with variable-displacement motors and variable-displacement pumps. The paper addresses the challenges when the active motors are set with a low displacement. The active motor displacement is shown to have significant impact on the dynamics of the closed loop hydraulic system. The classical control strategy for this type of system do not address these challenges and will in certain situations have significantly reduced performance. Therefor, a new control method is presented that utilize the variable displacement of the pumps and motors for speed control and to improve dynamics characteristics. The new winch controller is tested in a high-fidelity simulation model and is shown to improve low speed performance, reduce winch speed limitations by up to 30%, reduce system peak pressure by approximately 20%, and reduce control error by approximately 30%.
AB - The most common active heave compensated offshore cranes have hydraulic winch systems. This paper investigates an active/passive hydraulic winch system with variable-displacement motors and variable-displacement pumps. The paper addresses the challenges when the active motors are set with a low displacement. The active motor displacement is shown to have significant impact on the dynamics of the closed loop hydraulic system. The classical control strategy for this type of system do not address these challenges and will in certain situations have significantly reduced performance. Therefor, a new control method is presented that utilize the variable displacement of the pumps and motors for speed control and to improve dynamics characteristics. The new winch controller is tested in a high-fidelity simulation model and is shown to improve low speed performance, reduce winch speed limitations by up to 30%, reduce system peak pressure by approximately 20%, and reduce control error by approximately 30%.
UR - http://www.scopus.com/inward/record.url?scp=85084162682&partnerID=8YFLogxK
U2 - 10.1115/FPMC2019-1710
DO - 10.1115/FPMC2019-1710
M3 - 会议稿件
AN - SCOPUS:85084162682
T3 - ASME/BATH 2019 Symposium on Fluid Power and Motion Control, FPMC 2019
BT - ASME/BATH 2019 Symposium on Fluid Power and Motion Control, FPMC 2019
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME/BATH 2019 Symposium on Fluid Power and Motion Control, FPMC 2019
Y2 - 7 October 2019 through 9 October 2019
ER -