Propulsion system for ships - has stator winding of synchronous machines connected to power converter via power transfer device

摘要

The system includes at least two rudder propellers (10) driven by synchronous machines excited by permanent magnets. The stator winding of the synchronous machine comprises three bundles for a three-phase alternating current, connected via a power transfer device (14) to a power converter in the ship. The power converter is connected to the ship's power system via power conversion transformers. A control device made of standard modules is provided for each rudder propeller. The power converter may be a line-commutated 12 pulse direct AC converter, connected via three 3-winding power converter transformers to the ship's power system.