Abstract:
A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables.
Abstract:
An offshore energy plant has a wave energy plant configured to convert energy of a circulating orbital flow of wave motion into mechanical energy of a rotor shaft or crankshaft, for example using the wave harrow principle. The energy plant additionally has at least one wind turbine.
Abstract:
A method for cleaning deposits from a wave energy converter includes driving at least one rotatably mounted component that is coupled to an energy converter. The energy converter is configured to convert energy from wave motion of a fluid into a different form of energy. A negative energy balance of the wave energy converter is present during the cleaning over an average period of time.
Abstract:
A wave energy converter includes at least one rotor which is configured to convert a wave motion of an agitated body of water into a rotational motion of the at least one rotor. The at least one rotor has at least two elongate lift profiles which are each connected by one end to a rotor base. The lift profiles are each connected in pairs to one another via at least one vortex trail-guiding device in a region of their free ends, not connected to the rotor base, of the lift profiles.
Abstract:
A wave energy converter comprises a rotor, which is designed to convert a wave movement of a body of water, in which the wave energy converter is arranged, into a rotational movement of the rotor, wherein a mean density of at least one rotating component of the rotor can be adjusted and/or is lower than the mean density of the fluid surrounding the rotor in the body of water. The disclosure likewise relates to a corresponding control device and an operating method.
Abstract:
A wave energy converter comprises a rotor, which is designed to convert a wave movement of a body of water, in which the wave energy converter is arranged, into a rotational movement of the rotor, wherein a mean density of at least one rotating component of the rotor can be adjusted and/or is lower than the mean density of the fluid surrounding the rotor in the body of water. The disclosure likewise relates to a corresponding control device and an operating method.
Abstract:
A method for operating a wave energy converter for converting energy from a wave motion of a fluid into another form of energy, wherein the wave energy converter has a lever arm, which is mounted so as to be rotatable about a rotor rotational axis and bears a coupling body and an energy converter which is coupled to the rotatably mounted lever arm, includes controlling a rotational speed of the lever arm about the rotor rotational axis such that, averaged over time over one revolution, it corresponds to an orbital speed of the wave motion, and controlling the rotational speed of the lever arm such that an angle between a tangential speed of the coupling body and of a local flow rate of the wave motion about the coupling body deviates at maximum by a predefinable value of 90°.
Abstract:
A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables.