Abstract: A marine propulsion unit including a rotary casing rotatable about a central axis A, and blades extending axially from the rotary casing for rotation with the rotary casing about the central axis A, wherein each blade is mounted for pivotal movement about blade axes B. A blade shaft portion of each blade is at least partly surrounded by a blade housing and by a blade portion of each blade is outside the blade housing, wherein the blade housing is releasable attached to the rotary casing, and each blade being supported in the blade housing by means of bearings for the pivotal movement.

Abstract: A cycloidal marine propulsion unit, including a hollow rotary casing having a central axis and defining a central inner space with an opening at an axial end thereof. A mounting body rotatably supports the rotary casing on a hull of a marine vessel. A rotating arrangement is provided for rotating said hollow rotary casing, while a plurality of blades extend axially from the rotary casing away from the hull. Each blade is mounted for pivotal movement with respect to the rotary casing, about respective blade axes. The rotating arrangement is configured to rotate the rotary casing by a circumference thereof. A blade shaft portion of each blade is at least partly received within the central inner space so as to attach said blade to the rotary casing.

Abstract: A wind turbine assembly including a rotor system, a generator, a first converter, a second converter, and a controller system. The first converter includes a first bridge circuit having a plurality of switch members each having a controllable switch. The second converter includes a second bridge circuit having a plurality of switch members each having a controllable switch. The controller system is adapted to provide a drying operation for second converter including short circuiting the second converter with the controllable switches of the second bridge in circuit, and supplying power from the generator through the first converter to the short circuited second converter for drying the second converter.

Abstract: A wind turbine assembly including a rotor system, a generator, a first converter, a second converter, and a controller system. The first converter includes a first bridge circuit having a plurality of switch members each having a controllable switch. The second converter includes a second bridge circuit having a plurality of switch members each having a controllable switch. The controller system is adapted to provide a drying operation for second converter including short circuiting the second converter with the controllable switches of the second bridge in circuit, and supplying power from the generator through the first converter to the short circuited second converter for drying the second converter.

Abstract: A method for data transfer of an electric device configuration, the electric device configuration comprising a plurality of converter devices including a first converter device and a second converter device, each of the converter devices comprising a first converter unit having a first power connection and a second power connection, the first power connection arranged to supply direct current power to the first converter unit and the second power connection arranged to supply electric power from the first converter unit, and the first power connections of the first converter units being electrically connected to one another.

Abstract: A method for data transfer of an electric device configuration, the electric device configuration comprising a plurality of converter devices including a first converter device and a second converter device, each of the converter devices comprising a first converter unit having a first power connection and a second power connection, the first power connection arranged to supply direct current power to the first converter unit and the second power connection arranged to supply electric power from the first converter unit, and the first power connections of the first converter units being electrically connected to one another The method comprises transmitting information by the first converter device by causing changes in the voltage of the first power connection of the first converter unit of the first converter device, and receiving information by the second converter device based on identifying the changes in the voltage of the first power connection of the first converter unit of the second converter device