Electric propulsion system (Electric propulsion of ship's power generation system)

Electric propulsion system (Electric propulsion of ship's power generation system)

Features of the electric propulsion system

  • Total output becomes smaller.
  • The most suitable load balance of a generator can be realized.
  • In-ship system is simplified.
  • Arrangement of equipment can be designed freely and a wide cargo space can be kept.
  • Ship maneuverability is improved by high torque at low speed navigation.
  • Comfortableness is improved due to low vibration, low noise.
Example of application

Comparison of an electric propulsion ship (8,444G/T, cement carrying vessel) and an existing ship

  Electric propulsion ship Existing ship
Main engine - 4,260kWm × 1 unit
Propulsion motor 2 units -
For generator 1,600kWe × 3 units 1,600kWe × 1 unit
800kWe × 1 unit 660kWe × 2 unit
Emergency engine for generator 250kWe × 1 unit 250kWe × 1 unit
Total output 5,850kWe (6,285kWm) 5,4,260kWm + 3,170kWe(3,425kWm)
= 7,685kWm
Designed speed of ship Approx. 13 knot Approx. 13 knot

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