MULTIPHASE AC WIND GENERATOR Russian patent published in 2018 - IPC H02K47/00 F03D7/06 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, in particular to electromechanical energy converters. Multiphase wind generator contains a shaft, an internal stator and an external rotor with permanent magnets and a fairing, blades. Base of the inner stator is made in the form of a fixed platform rigidly fixed to the carrier rod. Lateral surface of the inner stator is formed by the outer side of the armature in the form of a truncated cone of magnetic core with grooves into which the multiphase armature winding is laid. Magnetic wire of the armature is rigidly mounted on the fixed platform where the voltage regulator is fixed. On its opposite end face there is a front bearing, where in the inner ring there is a disk rigidly connected to the shaft. Outer rotor is also made in the form of a truncated cone, comprises a hub, where on the inner surface is rigidly fixed a truncated cone shaped magnetic inductor with permanent magnets, made in the form of segments of a truncated cone, and rigidly fixed to the shaft installed in the front and rear bearings. Rear bearing is installed in the center of the fixed platform and secured from axial movement by the thrust washer. In front of the hub there is a fairing around which ventilation holes are made in the hub along the circle with the center on the axis of symmetry of the outer rotor. In the lateral part of the hub, holes are made where rotary axes are rigidly connected to the blades fixed to the outside of the hub. On the disc on the side of the fixed platform brackets are rigidly mounted, where the centrifugal weights are fixed, connected to the rotary axes by means of cables passed through the rollers that installed on the inner surface of the hub. Rollers are rigidly mounted on the shaft. Between the rotary axes and rollers, compressed springs are installed, and between the centrifugal weights and the shaft – stretched springs.

EFFECT: technical result consists in reducing the axial and diametric dimensions, minimizing the frequency difference between the nominal and actual output voltage, a reduction in the threshold value of the minimum wind speed necessary for generating the voltage, a reduction in energy losses, and an increase in the structure rigidity.

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