Abstract:
It is intended to provide a wind turbine generator and a component transferring method for the same, which is capable of efficiently transferring a transfer-object component between an interior of the nacelle and an interior of the tower. The wind turbine generator 1 is provided with a blade 2, a hub 4 on which the blade 2 is mounted, a main shaft 6 coupled to the hub 4, a nacelle 10 housing at least the main shaft 6, a tower 8 supporting the nacelle 10 via a yaw bearing 30, and a component lifting and lowering mechanism 12 installed in the nacelle 10. A nacelle opening 40 is formed in at least a portion where the main shaft 6 is not provided, of a circular area of the nacelle base plate 10B surrounded by the yaw bearing 30. The component lifting and lowering mechanism 12 transfers the transfer-object component 13 between the interior of the nacelle 10 and the interior of the tower 8 via the nacelle opening 40 while suspending the transfer-object component from above the main shaft 6.
Abstract:
Die Erfindung betrifft eine Windenergieanlage mit einem Rotor, der eine an einer Gondel gelagerte Rotornabe und eine Mehrzahl von Rotorblättern umfaßt. Mit dem Rotor ist ein elektrischer Generator verbunden. Darüber hinaus ist jeweils eine als Direktantrieb ausgestaltete elektrische Antriebseinrichtung zur Verstellung eines Rotorblatts vorgesehen, die konzentrisch zu einem Rotorblattlager an der Rotornabe angeordnet ist und einen permanent erregten Synchronmotor umfaßt. Ein Stator des Synchronmotors umfaßt einen an der Rotornabe montierten Spulenkörper. Ein Rotor des Synchronmotors ist zur Bildung eines sich axial erstreckenden Luftspalts in einem axialen Abstand zum Stator angeordnet. Außerdem weist der Rotor auf einer Trägerplatte, die mit einem Rotorblattschaft verbunden ist, eine Permanentmagnetanordnung auf.
Abstract:
The invention relates to a wind energy plant comprising a rotor having a rotor hub which is mounted on a gondola and a plurality of rotor blades. An electric generator is connected to the rotor. The invention also relates to an electric drive device which is designed as a direct drive and used to adjust a rotor blade which is arranged in a concentric manner on the rotor hub in relation to rotor blade bearing and a permanently excited synchronous motor. A stator of the synchronous motor comprises a coil body which is mounted on the motor hub. A rotor of the synchronous motor is arranged at an axial distance with respect to the stator for forming an axially extending air gap. Said rotor also comprises a permanent magnet arrangement on a support plate which is connected to a rotor blade shaft.
Abstract:
An apparatus (1) and a method of converting a portion of the specific energy of a fluid in gas phase into mechanical work are described, the apparatus (1) comprising: at least one housing (3, 3') which is provided with at least one gas-supply portion (7, T) and at least one exhaust portion (9, 9') / each of the at least one housing (3, 3') comprising: a blade wheel (5) which is rotatably arranged in the housing (3, 3') and which includes: a shaft (51) enclosed by a drum (53); at least two blades (55) which are movably arranged to the drum (53) so that a portion (57) of the blades (55) is arranged to be moved towards the internal casing surface (31) of the housing (3, 3') in such a way that the drum (53), the internal casing surface (31) of the housing (3) and the blades (55) define chambers (59) arranged to contain gas, an effective area of a blade (55) which is immediately upstream of the exhaust portion (9, 9') being larger than an effective area of a blade (55) which is immediately upstream of the gas-supply portion (7, 7'); that the blade wheel (5) constitutes a barrier between the gas-supply portion (7, 7') and the exhaust portion (9, 9'); and that the exhaust portion (9, 9') of one of the at least one housing (3, 3') is provided with a condenser (11) to condense the gas which has been carried into the exhaust portion (9, 9').
Abstract:
The present invention concerns systems for storing energy and using the stored energy to generate electrical energy or drive a propeller (505). In particular, the present invention provides a method of storing energy comprising: providing a gaseous input, producing a cryogen from the gaseous input; storing the cryogen; expanding the cryogen; using the expanded cryogen to drive a turbine (320) and recovering cold energy from the expansion of the cryogen. The present invention also provides a cryogenic energy storage system comprising: a source of cryogen; a cryogen storage facility (370); means for expanding the cryogen; a turbine (320) capable of being driven by the expanding cryogen; and means (340, 350) for recovering cold energy released during expansion of the cryogen.
Abstract:
Disclosed is an axial compressor (1) comprising a first compressor stage (2) including a first impeller (4) driven by first drive means (6), and a second compressor stage (3) including a second impeller (5) driven by second drive means (7). The second compressor stage (3) is arranged in axial continuation of the first compressor stage (2) and the first drive means (6) is arranged at the hub (8) of the first impeller (4) and the second drive means (7) is arranged at the hub (8) of the second impeller (5). Use of an axial compressor (1) is also disclosed.
Abstract:
It is intended to provide a wind turbine generator and a component transferring method for the same, which is capable of efficiently transferring a transfer-object component between an interior of the nacelle and an interior of the tower. The wind turbine generator 1 is provided with a blade 2, a hub 4 on which the blade 2 is mounted, a main shaft 6 coupled to the hub 4, a nacelle 10 housing at least the main shaft 6, a tower 8 supporting the nacelle 10 via a yaw bearing 30, and a component lifting and lowering mechanism 12 installed in the nacelle 10. A nacelle opening 40 is formed in at least a portion where the main shaft 6 is not provided, of a circular area of the nacelle base plate 10B surrounded by the yaw bearing 30. The component lifting and lowering mechanism 12 transfers the transfer-object component 13 between the interior of the nacelle 10 and the interior of the tower 8 via the nacelle opening 40 while suspending the transfer-object component from above the main shaft 6.