A marine vessel may include thrusters, an electrical system, and multiple flywheels (i) to supply electrical power to the electrical system and (ii) to stabilize marine vessel roll and/or pitch angle. A flywheel controller may be configured to control electrical power output from the flywheels to the electrical system, and control axis of rotation of one or more rotors of respective flywheels to compensate for roll and/or pitch angles of the marine vessel. A method of powering and stabilizing a marine vessel may include supplying, by flywheels, electrical power to an electrical system to supply electrical power to thrusters and electrical equipment. Flywheel(s) may be used to stabilize marine vessel roll and/or pitch angle. Electrical power output may be controlled from the flywheels to the electrical system. Axis of rotation of one or more flywheel rotors may be controlled to compensate for roll and/or pitch angles of the marine vessel.

A marine vessel may include thrusters, an electrical system, and multiple flywheels (i) to supply electrical power to the electrical system and (ii) to stabilize marine vessel roll and/or pitch angle. A flywheel controller may be configured to control electrical power output from the flywheels to the electrical system, and control axis of rotation of one or more rotors of respective flywheels to compensate for roll and/or pitch angles of the marine vessel. A method of powering and stabilizing a marine vessel may include supplying, by flywheels, electrical power to an electrical system to supply electrical power to thrusters and electrical equipment. Flywheel(s) may be used to stabilize marine vessel roll and/or pitch angle. Electrical power output may be controlled from the flywheels to the electrical system. Axis of rotation of one or more flywheel rotors may be controlled to compensate for roll and/or pitch angles of the marine vessel.

A ship assistance device including a storage medium storing a computer-readable command and a processor connected to the storage medium, the processor executing the computer-readable command to: calculate a pitching amount of a ship body based on a plurality of images photographed by a camera mounted on the ship body; estimate a pitching cycle of the ship body at least based on the calculated pitching amount; predict pitching of the ship body based on the estimated pitching cycle; and control a throttle of the ship body so as to reduce the predicted pitching of the ship body.

A ship assistance device including a storage medium storing a computer-readable command and a processor connected to the storage medium, the processor executing the computer-readable command to: calculate a pitching amount of a ship body based on a plurality of images photographed by a camera mounted on the ship body; estimate a pitching cycle of the ship body at least based on the calculated pitching amount; predict pitching of the ship body based on the estimated pitching cycle; and control a throttle of the ship body so as to reduce the predicted pitching of the ship body.

A boat may have a deck and a plurality of pontoons or hulls supporting the deck of the boat. The boat may include a starboard side pontoon, a port side pontoon, and possibly a middle pontoon. A positioning assembly may be provided with one or more of the foregoing pontoons. Each of the positioning assemblies may comprise a link assembly coupling the deck to the starboard side pontoon, wherein the link assembly is configured to permit pivoting of the starboard side pontoon relative to the deck from a retracted position, where the starboard side pontoon is proximate to an underside of the deck, to an extended position, where the starboard side pontoon is moved further from the underside, and an actuator provided to position the starboard side pontoon between the retracted position and the extended position. The boat may further include a leveling control system having a controller and a level sensor configured to detect an attitude of the deck, the controller in communication with the actuators and cause actuation of either or both of the actuators to extend or retract the port side pontoon and/or the starboard side pontoon based on data received from the level sensor indicative of the deck attitude.

A boat may have a deck and a plurality of pontoons or hulls supporting the deck of the boat. The boat may include a starboard side pontoon, a port side pontoon, and possibly a middle pontoon. A positioning assembly may be provided with one or more of the foregoing pontoons. Each of the positioning assemblies may comprise a link assembly coupling the deck to the starboard side pontoon, wherein the link assembly is configured to permit pivoting of the starboard side pontoon relative to the deck from a retracted position, where the starboard side pontoon is proximate to an underside of the deck, to an extended position, where the starboard side pontoon is moved further from the underside, and an actuator provided to position the starboard side pontoon between the retracted position and the extended position. The boat may further include a leveling control system having a controller and a level sensor configured to detect an attitude of the deck, the controller in communication with the actuators and cause actuation of either or both of the actuators to extend or retract the port side pontoon and/or the starboard side pontoon based on data received from the level sensor indicative of the deck attitude.

A control system for stabilizing a floating wind turbine is provided. The control system includes a measuring device configured for measuring a wind field and a wave field, a determining device wherein the determining device is configured for determining an excitation frequency spectrum of the floating wind turbine on the basis of the measured wind field and/or the wave field and/or a current floater pitch angle of the floating wind turbine, and wherein the determining device is further configured for determining a balanced state of the floating wind turbine, wherein in the balanced state a natural frequency is outside of the excitation frequency spectrum and/or the current floater pitch angle is equal to a pre-defined floater pitch angle. The control system further includes an adjustment device which is configured for manipulating the current floater pitch and/or the natural frequency until the balanced state is met.

A control system for stabilizing a floating wind turbine is provided. The control system includes a measuring device configured for measuring a wind field and a wave field, a determining device wherein the determining device is configured for determining an excitation frequency spectrum of the floating wind turbine on the basis of the measured wind field and/or the wave field and/or a current floater pitch angle of the floating wind turbine, and wherein the determining device is further configured for determining a balanced state of the floating wind turbine, wherein in the balanced state a natural frequency is outside of the excitation frequency spectrum and/or the current floater pitch angle is equal to a pre-defined floater pitch angle. The control system further includes an adjustment device which is configured for manipulating the current floater pitch and/or the natural frequency until the balanced state is met.

A system for controlling a marine vessel comprises an input device for inputting an operator command, a sensor which senses and signals an engine function variable or a vessel dynamic variable, and a first structural element and a second structural element. The first structural element and the second structural element each control speed or direction of motion of the marine vessel, and the first structural element and the second structural element each affect the marine vessel dynamic variable. There is a controller which receives the operator command and the engine function variable or the vessel dynamic variable. The controller moves the first structural element and the second structural element based on the engine function variable or the vessel dynamic variable, after receiving the single operator command.

A system for controlling a marine vessel comprises an input device for inputting an operator command, a sensor which senses and signals an engine function variable or a vessel dynamic variable, and a first structural element and a second structural element. The first structural element and the second structural element each control speed or direction of motion of the marine vessel, and the first structural element and the second structural element each affect the marine vessel dynamic variable. There is a controller which receives the operator command and the engine function variable or the vessel dynamic variable. The controller moves the first structural element and the second structural element based on the engine function variable or the vessel dynamic variable, after receiving the single operator command.