초록 ▼

Axial flux alternator for a wind turbine arrangement includes at least one magnetic disk including magnets and at least one coil disk including electromagnetic assemblies. One or both disks are mounted to wind turbines such that adjacent disks rotate in opposite directions, or such that the magnets

Axial flux alternator for a wind turbine arrangement includes at least one magnetic disk including magnets and at least one coil disk including electromagnetic assemblies. One or both disks are mounted to wind turbines such that adjacent disks rotate in opposite directions, or such that the magnets of a magnetic disk move relative to the electromagnetic assemblies of an adjacent coil disk which may move or be stationary, or vice versa. Between adjacent disks, rolling elements on one disk roll, slide or move on or against the surface of the opposite disk in order to fix and maintain air gaps between the magnets on a magnetic disk and magnetic cores of the electromagnetic assemblies on the coil disk, and thus enable continued motion and use of the alternator.

대표청구항 ▼

1. A wind turbine arrangement, comprising: an axial flux alternator for generating electricity, said alternator comprising:at least one coil disk;magnetic cores with conductive coils arranged on each of said at least one coil disk;at least one magnetic disk arranged adjacent to said at least one coi

1. A wind turbine arrangement, comprising: an axial flux alternator for generating electricity, said alternator comprising:at least one coil disk;magnetic cores with conductive coils arranged on each of said at least one coil disk;at least one magnetic disk arranged adjacent to said at least one coil disk; andmagnets arranged on each of said at least one magnetic disk;rolling elements arranged between facing surfaces of said at least one coil disk and said at least one magnetic disk to maintain air gaps between a surface of said magnetic cores on said at least one coil disk and said magnets on said at least one magnetic disk;said alternator generating electricity from relative rotation between said at least one coil disk and said at least one magnetic disk during which said magnetic cores of said at least one coil disk and said magnets of said at least one magnetic disk are brought into and out of magnetic engagement with one another; andat least one wind turbine, at least one of said coil disk or one of said magnetic disk being coupled to said at least one wind turbine to cause, when said wind turbine is exposed to wind, a relative rotation between said at least one coil disk and said at least one magnetic disk;at least one of said at least one coil disk and said at least one magnetic disk comprising: at least two outer layers of a strong material; andat least one inner lightweight layer arranged between said at least two outer layers of strong material. 2. The wind turbine arrangement of claim 1, wherein said at least two outer layers are made from carbon fiber and said at least one inner layer is made from a honeycomb structure, foam or balsa. 3. The wind turbine arrangement of claim 1, wherein said at least one of said at least one coil disk and said at least one magnetic disk further comprises supporting elements arranged within said inner layer. 4. The wind turbine arrangement of claim 1, wherein said at least one coil disk comprises said at least two outer layers and said at least one inner layer, said at least one coil disk further comprising supporting elements arranged within said at least one inner layer, said coils of said at least one coil disk being secured to said at least one coil disk in connection with said supporting elements. 5. The wind turbine arrangement of claim 1, wherein said at least one magnetic disk comprises said at least two outer layers and said at least one inner layer, said at least one magnetic disk further comprising supporting elements arranged within said at least one inner layer, said magnets of said at least one magnetic disk being secured to said at least one magnetic disk in connection with said supporting elements. 6. The wind turbine arrangement of claim 1, wherein said at least one coil disk comprises said at least two outer layers and said at least one inner layer, said at least two outer layers and said at least one inner layer consisting of non-conductive materials. 7. The wind turbine arrangement of claim 1, wherein said rolling elements are in contact with at least one of a surface of said at least one coil disk and a surface of an adjacent one of said at least one magnetic disk that face each other. 8. The wind turbine arrangement of claim 7, wherein said rolling elements are fixed to said at least one coil disk or to said adjacent one of said at least one magnetic disk and roll, slide or move on or against the surface of the other of said at least one coil disk and said adjacent one of said at least one magnetic disk. 9. The wind turbine arrangement of claim 7, wherein said rolling elements are movably retained between the surface of said at least one coil disk and the surface of said adjacent one of said at least one magnetic disk and roll, slide or move on or against the surface of both of said at least one coil disk and said adjacent one of said at least one magnetic disk. 10. The wind turbine arrangement of claim 9, wherein said rolling elements are thrust bearings including a first ring attached to said at least one coil disk, a second ring attached to said adjacent one of said at least one magnetic disk and a cage assembly that retains rollers between said first and second rings. 11. A wind turbine arrangement, comprising: an axial flux alternator for generating electricity, said alternator comprising:at least one coil disk;magnetic cores with conductive coils arranged on each of said at least one coil disk;at least one magnetic disk arranged adjacent to said at least one coil disk; andmagnets arranged in magnetic rows on each of said at least one magnetic disk;rolling elements arranged between facing surfaces of said at least one coil disk and said at least one magnetic disk to maintain air gaps between a surface of said magnetic cores on said at least one coil disk and said magnets on said at least one magnetic disk;said alternator generating electricity from relative rotation between said at least one coil disk and said at least one magnetic disk during which said magnetic cores of said at least one coil disk and said magnets of said at least one magnetic disk are brought into and out of magnetic engagement with one another; andat least one wind turbine, at least one of said coil disk or said magnetic disk being coupled to said at least one wind turbine to cause, when said wind turbine is exposed to wind, a relative rotation between said at least one coil disk and said at least one magnetic disk;wherein a number of said coils on said at least one coil disk and a number of said magnetic rows on said at least one magnetic disk are set to provide an odd number of phases equal to or larger than three, with the number of said magnetic rows on said at least one magnetic disk divided by the number of said coils in each phase on said at least one coil disk being an even number larger than the number of phases. 12. The wind turbine arrangement of claim 11, wherein said coils are grouped together by electromagnetic conditions such that each group of coil is exposed to the same electromagnetic conditions and provides a respective one of the phases. 13. The wind turbine arrangement of claim 12, wherein said groups of coils are electrically connected in serial connection, in parallel connection or in a combination of serial and parallel connections. 14. The wind turbine arrangement of claim 12, wherein said groups of coils are electrically connected in a polygon type electrical connection. 15. The wind turbine arrangement of claim 14, wherein said groups of coils are arranged such that output of the polygon type electrical connection is input to a multiphase rectifier to provide a high voltage direct current output. 16. The wind turbine arrangement of claim 12, wherein said groups of coils are electrically connected through a multiphase rectifier to provide a high voltage direct current output. 17. The wind turbine arrangement of claim 12, with each magnetic row is separated from adjacent magnetic rows by a constant angular distance. 18. A wind turbine arrangement, comprising: an axial flux alternator for generating electricity, said alternator comprising:at least one coil disk;magnetic cores with conductive coils arranged on each of said at least one coil disk;at least two magnetic disks arranged such that two of said magnetic disks are adjacent to and on opposite sides of each of said at least one coil disk; andmagnets arranged in magnetic rows on each of said two magnetic disks;rolling elements arranged between facing surfaces of said at least one coil disk and said at least one magnetic disk to maintain air gaps between a surface of said magnetic cores on said at least one coil disk and said magnets on said two magnetic disks;said alternator generating electricity from relative rotation between said at least one coil disk and said two magnetic disks during which said magnetic cores of said at least one coil disk and said magnets of said two magnetic disks are brought into and out of magnetic engagement with one another; andat least one wind turbine, at least one of said coil disk or said two magnetic disks being coupled to said at least one wind turbine to cause, when said wind turbine is exposed to wind, a relative rotation between said at least one coil disk and said two magnetic disks;wherein said magnets are arranged on said two magnetic disks such that polarity of the magnetic rows changes every adjacent magnetic row. 19. The wind turbine arrangement of claim 18, further comprising magnetic steel bases that mount said magnets in pairs on said magnetic disks, said magnets in each pair being in different magnetic rows and having opposite outward polarity. 20. The wind turbine arrangement of claim 18, with each magnetic row is separated from adjacent magnetic rows by a constant angular distance.