Large, low-speed asynchronous motors are becoming more and more common as a means of powering diesel-electric ships.
These motors are designed for use with medium-voltage converters. But it will be also possible to have a design with 4 independent winding systems for LV inverter operation in the upper power range.
Possible drive variants:
- direct drive (DOL)
- startup with a soft starter till maximum outputn
- operation with a PMW converter, sometimes with multiple winding systems
- combination of direct and regulated drive (tandem)