摘要:
A wind turbine that includes a rotor and a generator is described. The rotor includes a rotor hub that is rotatably mounted on a frame and one or more rotor blades. The generator includes a generator stator and a generator rotor with a carrying structure that carries magnetic or electromagnetic elements. One or more circumferentially arranged substantially axial protrusions that extend into the generator rotor carrying structure are attached to the rotor. Flexible couplings are arranged between one or more of the axial protrusions and the carrying structure.
摘要:
A cooling system and method for a wind power generator and a wind power generator set. The cooling system for a wind power generator comprises air extraction pipelines (28, 29) and air discharge devices (26, 27). The air extraction pipelines (28, 29) are located inside a generator case (30). A pipeline inlet (21) in communication with a generator (31), a first pipeline outlet (22) in communication with the outside of the generator case, and a second pipeline outlet (23) in communication with the inside of the generator case are arranged on the air extraction pipelines (28, 29), and the first and second pipeline outlets (22, 23) are provided with air doors (24, 25). Therefore, the cooling efficiency of the generator set in a high temperature environment is enhanced, and the temperature of the generator case is kept in a low temperature environment. The cost is lowered and the consumed energy is reduced.
摘要:
A turbine having a first set of at least three aerofoil shaped blades, a second set of at least three aerofoil shaped blades, and a substantially flat plate having an upper and a lower surface, the first set of at least three aerofoil shaped blades attached to the upper surface of the substantially flat plate and the second set of at least three aerofoil shaped blades attached to the lower surface of the substantially flat plate. The first set of at least three aerofoil shaped blades are vertically spaced and offset from the second set of at least three aerofoil shaped blades. The solidity of the turbine is from 0.5 to 5.
摘要:
Self-starting vertical axis wind rotor (11) able to start also at very low wind speeds, for example of the order of 1 m/s, comprising a fixed support structure; a machine for converting the circular movement into electric current, associated with the structure; a vertical shaft rotatably supported by the structure and connected to the machine so that the rotation of the shaft causes the generation of electric current by the machine; a rotatable wind structure connected centrally to the vertical shaft and at the periphery to a plurality of rotor blades; wherein each rotor blade of the plurality of blades comprises three elongated bodies arranged in cascade and having the same wing profile, the elongated bodies being arranged vertical and substantially parallel to each other and to the shaft.
摘要:
The present invention relates to an electro powered mechanical power generation device, using interconnected wheels of different sizes. The device comprises several wheels, in which the main wheel, after having been set in motion by the power source drives the wheels sent via levers, which in turn will drive pulley generator rotor causing it to rotate, producing electricity.
摘要:
An offshore wind turbine (1) includes a tower structure body configured with a tower (4) and foundation (5), a rotor (2) supported at the tower top, a generator generating electricity by the rotor's rotation, and a converter (7) converting generated electricity. A cavity is formed in the tower (4) and foundation (5), and an internal space configured therewith is divided into upper and lower chambers (A, B) by a bulkhead (5a) having first and second vents (5b, 5c) between or in either of the tower (4) and foundation (5). The converter (7) is disposed in the upper chamber (A). An air circulating channel and blower (e.g., exhaust fan 8) are provided wherein air is circulated from the converter (7) to the lower chamber (B) through the first vent (5b), then to the converter (7) through the second vent (5c). An air inlet (10a) is disposed below an air outlet (9a), or a partition member (12) is provided therebetween.
摘要:
A wind turbine with a drive train placed partly or entirely in a nacelle of the wind turbine is provided. The drive train includes an epicyclical gearbox including at least one gear stage having a plurality of planet gears meshing with a sun gear and an annulus gear. The gearbox is used to transfer and speed-up the rotation of a rotor of the wind turbine, as applied to at least one generator of the wind turbine. The drive train further includes at least one locally radial self tracking bearing for enabling the rotation of the rotor in relation to a nacelle structure of the nacelle. The self tracking bearing includes bearing elements for locally transferring loads in both radial directions between one or more bearing rings.
摘要:
A planar electric generator using a magnetic levitation system includes an annular ferromagnetic guide rail (1) and a rotary disk (2) located above the annular ferromagnetic guide rail (1). The annular ferromagnetic guide rail (1) includes an annular base (11) and two annular wheel rails (12) that protrude upward from the annular base (11) and separated from each other. A plurality of first electromagnets (13) protrudes between the two annular wheel rails (12), the first electromagnets (13) are distributed at an equal interval around a circumferential direction of the annular base (11), and an electromagnetic induction apparatus (14) is provided at the top of each first electromagnet. Wheels (21) in rolling cooperation with the annular wheel rails (12) are respectively installed at two sides of the bottom of the rotary disk (2). Second electromagnets (22) protrude downward between the wheels (21) at the two sides of the bottom of the rotary disk (2), magnetic field lines are generated between the first electromagnets (13) and the second electromagnets (22) and pass through the electromagnetic induction apparatuses (14). A wind catching cup (23) is fixed at the top of the rotary disk (2). An opening direction of the wind catching cup (23) is tangent to the circumferential direction of the annular base (11). The planar electric generator using the magnetic levitation system makes a rotational movement in a magnetic levitation state under the effects of an external wind force so as to enable magnetic field lines to pass through an electromagnetic induction apparatus to generate a change to generate electricity. The rotational movement has a small frictional force, low power consumption, and low loss.
摘要:
Ce système de récupération d'énergie renouvelable pour générer localement de l'énergie électrique est notamment associé à un câble aérien ou sous-marin ou à une conduite aérienne ou sous-marine. Ce système comprend une turbine (1) d'enveloppe externe sensiblement cylindrique montée rotative sur le câble ou sur la conduite à l'aide d'organes de montage, et un alternateur relié cinématiquement ou intégré à ladite turbine (1). Les organes de montage et la turbine (1) sont constitués en deux parties (A, B) séparables, pourvues d'éléments d'assemblage (4) pour permettre leur assemblage une fois positionnées sur le câble ou sur la conduite.
摘要:
A wind power generation system comprising: a wind power generation equipment having a rotor which is operative to convert energy of received wind to rotational energy, a nacelle 3 which supports the rotor rotatably, a tower which supports the nacelle 3 rotatably, a floating body 5 which supports the tower 4 and at least a part of itself is positioned above the surface of the sea, a fixing member 7 which is installed or fixed on the sea bed, a mooring member 6, 21, 22 which couples the floating body and the fixing member 7, characterized in that the mooring member is coupled to the floating body at place upward of the center of gravity of the floating body 5 and the wind power generation equipment, and the floating body is practically supported by one fixing member 7.