CONTROLLABLE PITCH PROPELLER CONTROL SHIP AND CONTROLLABLE PITCH PROPELLER CONTROL METHOD

摘要

[Problem] To improve propeller efficiency as high as possible and thereby enable energy-efficient operation [Solution] A controllable pitch propeller control ship is provided with a controllable pitch propeller; a hydraulic unit (13) disposed inside a boss of the controllable pitch propeller and provided for each vane (14) of the controllable pitch propeller to independently vary the vane angle of each vane (14); a vane angle command section (11) for determining a vane angle near the limit of occurrence of a cavitation, depending on the water depth at which the vane (14) is present, to output the resulting vane angle as a vane angle target value (α₀) of the vane (14); and a hydraulic unit control section (12) for receiving the vane angle target value (α₀) from the vane angle command section (11) to control the hydraulic unit (13) so that the vane angle of the vane (14) takes on the vane angle target value (α₀).