Patent ID: 11952094
Assignee: ABB SCHWEIZ AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 0:
1. A marine power system comprising:
multiple of fuel cells:
multiple of DC/AC converters; and
at least one propulsion motor,
wherein:
each fuel cell of the multiple of fuel cells is connectable to an input of a DC/AC converter of the multiple of DC/AC converters
at least one group of the multiple of DC/AC converters is connectable to the at least one propulsion motor to provide variable frequency and amplitude voltage to the at least one propulsion motor,
at least one of the multiple of DC/AC converters if connectable to a fixed frequency AC bus to provide voltage with a fixed frequency and amplitude to the fixed frequency AC bus,
the power system further comprises a transformer which is connectable between an output of the at least one of the multiple of DC/AC converters and the fixed frequency AC bus, and
the transformer comprises multiple of primary windings, each primary winding being connectable to a separate DC/AC converter, and a secondary winding connectable to the fixed frequency AC bus.