Provided is a wind power system. The wind power system may comprise: a rail for providing a movement path in a horizontal direction; a moving body configured to slide and move along the movement path of the rail; a plurality of blades installed on the moving body and providing power for the movement of the moving body on the basis of energy from the wind; and a nacelle having a generator for generating power by rotating in conjunction with the movement of at least one of the moving body and the blades.

A modular gearbox assembly for a wind turbine having improved up-tower serviceability includes a low-speed gear stage module, a separate, intermediate-speed gear stage module adjacent to the low-speed gear stage module, and a separate high-speed gear stage module adjacent to the intermediate-speed gear stage module. The gearbox assembly also includes a first flange removably connecting the intermediate and high-speed gear stage modules and a second flange removably connecting the intermediate and low-speed gear stage modules. Thus, the low-speed gear stage module converts a low-speed, high torque input from a rotor shaft of the wind turbine to a high-speed, low torque output for a generator of the wind turbine via the intermediate and high-speed gear stage modules. In addition, the first and second flanges allow for easy disassembly of the gear stage modules such that the various stages can be easily repaired, replaced, and/or inspected.

A modular gearbox assembly for a wind turbine having improved up-tower serviceability includes a low-speed gear stage module, a separate, intermediate-speed gear stage module adjacent to the low-speed gear stage module, and a separate high-speed gear stage module adjacent to the intermediate-speed gear stage module. The gearbox assembly also includes a first flange removably connecting the intermediate and high-speed gear stage modules and a second flange removably connecting the intermediate and low-speed gear stage modules. Thus, the low-speed gear stage module converts a low-speed, high torque input from a rotor shaft of the wind turbine to a high-speed, low torque output for a generator of the wind turbine via the intermediate and high-speed gear stage modules. In addition, the first and second flanges allow for easy disassembly of the gear stage modules such that the various stages can be easily repaired, replaced, and/or inspected.

A wind turbine and wave/tidal energy apparatus has a vertical axis blade assembly, a lower cylindrical tube and an upper cylindrical tube. A rotor shaft is connected to the blade assembly and the upper cylindrical tube. A magnetic chamber is housed inside an upper cylindrical frame and is connected with the blade assembly through the rotor shaft. The frictionless levitation chamber is housed inside the upper cylindrical frame. The rotor shaft may protrude through the magnetic chamber into the frictionless levitation chamber and may have a magnet attached on the end of the rotor shaft. The magnetic array chamber is housed inside the lower cylindrical frame and may have a magnetic array axle with plurality of fixed magnets on it. The magnetic array axle may protrude into the frictionless levitation chamber and have a magnet attached to it. The floating inductive coil is located externally of the lower cylindrical frame.

The invention provides a wind turbine, comprising: a turbine rotor comprising a set of turbine rotor blades and defining a rotor rotational axis, said turbine rotor mounted on a tower; an electrical generator for converting mechanical energy of said turbine rotor into electrical energy, comprising a generator rotor drivingly coupled to said turbine rotor and mounted on said tower; a transmission system coupling said turbine rotor to said generator rotor, and comprising: an upstream stepped planetary gearbox comprising a upstream ring gear drivingly coupled to said turbine rotor, upstream first planet gears drivingly coupled with said upstream ring gear, upstream second planet gears, each rotationally coupled with a first planet gear, and an upstream sun gear drivingly coupled to said upstream second and coupled to said generator rotor, wherein said upstream second planet gears are axially offset to one another.

The invention provides a wind turbine, comprising: a turbine rotor comprising a set of turbine rotor blades and defining a rotor rotational axis, said turbine rotor mounted on a tower; an electrical generator for converting mechanical energy of said turbine rotor into electrical energy, comprising a generator rotor drivingly coupled to said turbine rotor and mounted on said tower; a transmission system coupling said turbine rotor to said generator rotor, and comprising: an upstream stepped planetary gearbox comprising a upstream ring gear drivingly coupled to said turbine rotor, upstream first planet gears drivingly coupled with said upstream ring gear, upstream second planet gears, each rotationally coupled with a first planet gear, and an upstream sun gear drivingly coupled to said upstream second and coupled to said generator rotor, wherein said upstream second planet gears are axially offset to one another.

A nacelle cover (100) for a wind turbine includes an elongate housing (105) and the front end (107) of the housing (105) is mounted on a bed plate frame (420) which is affixed to the tower (122), the bed plate frame (420) supporting at least one part of a drive train (124) of the wind turbine. At least one machinery component (125) is mounted on the housing (105) at a position laterally spaced from the bed plate frame (420) in a longitudinal direction along the housing (105). The housing (105) includes a structural tube (128) which functions as a vertically displaceable cantilever beam carrying the load of the at least one machinery component (125) mounted thereon.

A nacelle cover (100) for a wind turbine includes an elongate housing (105) and the front end (107) of the housing (105) is mounted on a bed plate frame (420) which is affixed to the tower (122), the bed plate frame (420) supporting at least one part of a drive train (124) of the wind turbine. At least one machinery component (125) is mounted on the housing (105) at a position laterally spaced from the bed plate frame (420) in a longitudinal direction along the housing (105). The housing (105) includes a structural tube (128) which functions as a vertically displaceable cantilever beam carrying the load of the at least one machinery component (125) mounted thereon.

A support assembly for carrying at least a part of the load of a drive train, a canopy structure and/or other components arranged inside a nacelle of a wind turbine includes a bed frame structurally establishing a connection between the drive train and/or the nacelle and a tower of the wind turbine, and a support structure coupled to the bed frame configured to support at least a part of the load of the canopy structure and/or components arranged inside the nacelle, wherein the support assembly further includes a coupling means to couple the support structure to the bed frame, wherein the coupling means includes a plurality of pins configured to be inserted in insertion holes.

A support assembly for carrying at least a part of the load of a drive train, a canopy structure and/or other components arranged inside a nacelle of a wind turbine includes a bed frame structurally establishing a connection between the drive train and/or the nacelle and a tower of the wind turbine, and a support structure coupled to the bed frame configured to support at least a part of the load of the canopy structure and/or components arranged inside the nacelle, wherein the support assembly further includes a coupling means to couple the support structure to the bed frame, wherein the coupling means includes a plurality of pins configured to be inserted in insertion holes.