Marine power system
AssigneeABB Schweiz AG
InventorsHarri Lipponen, Arber Haxhiu, Sami Kanerva, Mikko Kajava
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Abstract
A marine power system including multiple of fuel cells, multiple of D C/AC converters and at least one propulsion motor. In the marine power system, 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 and at least one group of 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. Further, at least one of the multiple of DC/AC converters is connectable to a fixed frequency AC bus to provide voltage with a fixed frequency and amplitude to the fixed frequency AC bus.
Claims15
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.
Dependencies are inferred from the claim text.