This propeller propulsion apparatus for a ship includes a first propeller, a second propeller disposed coaxially with the first propeller and rotating in a direction opposite to the first propeller, a first electric motor configured to drive the first propeller, a second electric motor configured to drive the second propeller, a control unit configured to control each of the first electric motor and the second electric motor, and a memory unit configured to store a combination of rotational frequencies of the first propeller and the second propeller at each vessel speed where total power consumption of the first electric motor and the second electric motor is an optimum value, and the control unit controls the first electric motor and the second electric motor on the basis of the data of the memory unit such that the total power consumption at each vessel speed is the optimum value during an operation of a ship.
PROPELLER PROPULSION APPARATUS FOR SHIP
2024-04-04
Patent
Electronic Resource
English
IPC: | B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING |
Propulsion apparatus for ship used counter rotating propeller
European Patent Office | 2019
|