For general transport ships, the mobility is not high, the capacity of power stations is not large, and the advantages of electric propulsion are not prominent.
For trawlers processed in cold storage, the power grid capacity of the ship is large and the tonnage of the fishing boat is small. Using electric propulsion can improve the maneuverability and facilitate the operation.
When the icebreaker is working, the load changes and even the propeller does not turn. If the electric propulsion device is used, the working characteristics can be adjusted quickly and automatically to adapt to different workloads without damaging the unit.
The dredger adopts electric propulsion device, which has reasonable power distribution, reduced the number of prime movers, good economy, high efficiency and low cost.
Cable laying ship, ship marking work ship, fire fighting ship, etc. It is possible to sail at a wide speed by using the electric propulsion device.
It is more advantageous to use electric propulsion device for submarine underwater operation, and battery-motor electric propulsion is generally used.
In addition, various underwater measuring devices also use electric propulsion devices.