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Keywords: control strategy
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Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-1147
... Abstract In this paper; a nonlinear cascade control strategy is proposed to control the position for underwater platform. Firstly; a double loop feedback controller is constructed to avoid the influence of external disturbance. An enhanced nonlinear PID controller is used to compensate...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1146
... to be considered as a reference for tidal current turbines. sustainable development sustainability reference speed control strategy energy conservation rotor speed turbine artificial intelligence renewable energy tidal current turbine system ocean energy sensor fault social responsibility tidal...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3221
... be effectively utilized. At present, only a few autonomous sailboats over the world can achieve turning and changing sails under unmanned operation. Therefore, it is of profound significance to study the control strategy for autonomous sailboats. In general, the control strategy adopted by autonomous sailboats...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-334
...Control Strategy for a Tidal Compensation System for Wave Energy Converter Device Mohd Nasir Ayob1,2, Valeria Castellucci1, Johan Abrahamsson1, Olle Svensson1, Rafael Waters1 1Swedish Centre for Renewable Electric Energy Conversion, Division for Electricity, Uppsala University, Uppsala, Sweden...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-684
... importance for most applications. guidance system simulation propulsive force way-point tracking vehicle control strategy converge controller upstream oil & gas depth control phase experiment underwater vehicle fin artificial intelligence depth controller horizontal plane time...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-284
... motion mathematical model theory with the characteristics of continuous curved channel, the typical motion model for inland river ships was built. Thirdly, control strategies and rules for course adaptive control were designed to establish Fuzzy PID controller. Finally, simulation experiments based...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-520
... ABSTRACT In order to be economically viable PV-storage systems must fulfill certain performance criteria. The system control strategy has a large impact on the overall system performance and the system control software should be regulated in such a way as to maximize the self-supply ratio...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-307
...) and hybrid wave & wind multi-turbine floating platforms (Kim et al., 2015). renewable energy wind tunnel testing experiment campagnolo power maximization control strategy wind turbine power plant controller wind power platform turbine tunnel testing wind energy platform wind speed...
Proceedings Papers

Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-397
... electric powertrain, an energy control management strategy dictates the required torque from the electric motor so as to track a reference air-to-fuel ratio/stoichiometric (ʎ- value) in the diesel engine. The feasibility and validity of the proposed control strategy was tested experimentally. A comparison...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-268
... Abstract A new multi-year effort has been launched by the Department of Energy to validate the extent to which control strategies can increase the power produced by resonant wave energy conversion (WEC) devices. This paper describes the design of a WEC device to be employed by this program...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-018
... Abstract To deal with the system uncertainty in the path following problems with slow varying disturbances, a simple but effective L 1 adaptive control strategy is introduced. This control law shows a fast adaptation rate and robust control performance, which can ensure the uniformly...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-272
... for waypoint guidance and depth control are suggested and performed by experiments. artificial intelligence depth control strategy sensor experiment control system propeller navigation algorithm mass shifter mechanism waypoint control strategy auv waypoint guidance pitch angle rudder...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-212
... performance, using semi-physical simulation technology. control strategy semi-physical simulation platform simulation result tension winch mathematical model velocity vector modeling underwater platform hydraulic motor mode controller controller artificial intelligence platform vector...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-007
... may be induced by thruster actions, which obviously should be avoided. A new control strategy considering roll-pitch motion control is presented in this paper. The main idea in the new control strategy is to consider roll-pitch velocity and acceleration feedback in the horizontal control law in order...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-399
... to and other factors. In civil engineering, lab tests have demonstrated MR damper's effectiveness in structural control (Spencer et al., 1997; Jansen and Dyke, 2000; Yi et al., 2001). inverse dynamic model jacket platform artificial intelligence control strategy dynamic response control...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-095
... turbine. In case of spar-type floaters, the control strategy significantly influences the hull and mooring dynamics due to the possibility of control-induced instability causing resonant hull motions. Therefore, it is important to use a control strategy without such problems at the penalty of possibly...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-611
... ABSTRACT: This paper addresses the hydrodynamic analysis of a generalized twobody system (2B), a wave energy convertor containing a power take off (PTO) system for the purpose of energy conversion. The aim is to study the behaviour of the system and the effect of different control strategies...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-092
.... Latching control, a technique meant to improve the absorption of energy by point absorbers, has been the subject of many studies in the wave-energy literature. The present paper outlines the original principle of latching control and proceeds with a critical assessment of this control strategy and of some...
Proceedings Papers

Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-374
... of Automation (SIA), Chinese Academy of Sciences (CAS) is established, and a class of control strategies are investigated. We first establish a motion model by studying the steady state gliding motion in the vertical motion plane based on Graver, 2005. We then compute the minimum gliding path angle...
Proceedings Papers

Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-110
... This paper addresses control strategies for the Archimedes Wave Swing (AWS), an off-shore, fully-submerged wave energy converter (WEC). Only optimising its behaviour will it compete with other already proven technologies, a great deal of research being yet necessary. Reactive (or complex...

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