Power Generator
a power generator and generator technology, applied in the direction of motors, working fluids of engines, tidal streams/damless hydropower, etc., can solve the problems of running costs, low generation capacity, and high installation cost, and achieve the effect of low cost, low cost, and low cos
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first embodiment
[0047]FIG. 1 shows schematically an electrical power generator assembly 10a, which is driven by the kinetic energy of a flowing fluid 12, such as a tidal current, ocean stream, river flow or wind, to generate electrical power. The generator assembly 10a includes a blade assembly 14 with a head end 16 facing the oncoming flow of the fluid 12 and a tail end 18, spaced from the head end 16, which faces in the direction of the flow of the fluid 12.
[0048]The blade assembly 14 has a rotational axis 20 extending between the head end 16 and the tail end 18. The blade assembly 14 also includes a mounting formation in the form of a shaft 24 supported by head end bearings 26 and tail end bearings 28. Stay cables 36 and 38 are attached to the bearings 26 and 28 respectively, which locate the assembly 10a and resist movement of the assembly 10a in the fluid flow 12.
[0049]The blade assembly 14 also has a blade arrangement, in the form of a plurality, in this case, a pair, of equiangularly spaced ...
fourth embodiment
[0074]FIG. 4 shows an electrical power generator assembly is 10d. Once again, like features to those described with reference to earlier embodiments are denoted with like reference numerals.
[0075]In the assembly 10d, the blades 44 are similar to that described with reference to the assembly 10a in FIG. 1. The primary coils 52 are also integrated into the shroud head end section 50a, also similar to that described with reference to the assembly 10a in FIG. 1. The primary coils 52 are in magnetic communication with the secondary coils 54a and the secondary power coils 54b integrated into the stator 100. The shroud 50 rotates with the blades 44 and encompasses a half-set of magnetic bearings 60 that are in magnetic communication with an opposing half-set of magnetic bearings 62. The magnetic bearings 60 and 62 act as a set to repel each other so that they allow rotation of the shroud 50, the blades 44 and the primary coils 52. The tapered shape of the magnetic bearings 60 and 62 also a...
fifth embodiment
[0079]FIG. 5 shows an electric power generator assembly 10e. Like features to those described with reference to earlier embodiments are again denoted with like reference numerals.
[0080]The assembly 10e is very similar in construction and operation to the assembly 10a described with reference to FIG. 1 except that the primary coils 52 and the secondary coils 54a and secondary power coils 54b are spaced radially apart rather than axially, with the secondary coils 54a and secondary power coils 54b on the outside of the primary coils 52. In this configuration, the assembly 10d behaves more like a ring generator, as opposed to a disc generator, and allows more space to integrate the coils. In an alternative arrangement, the secondary coils 54a and secondary power coils 54b are positioned on the inside of the primary coils 52.
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