VERTICAL-AXIAL WIND PLANT Russian patent published in 2015 - IPC F03D3/00 

FIELD: power engineering.

SUBSTANCE: vertical-axial wind plant comprises a hub, where a power generator and a rotor are placed, and the rotor comprises a row of vertical blades rotating around the vertical axis. On the hub there is a stator, the outer surface of which is shaped as a cylinder, at the same time it is covered with a cylindrical cavity of the rotor. Stator slots, where winding coils are placed, are located at the outer side of the stator and open towards the cylindrical cavity of the rotor that faces them. The inner surface of the rotor cavity facing the stator is equipped with a circular ledge with a slot, where an inductor is mounted, which comprises planks aligned along the longitudinal axis of the rotor, made of permanent magnets, to form a composite magnet ring. At the same time planks are magnetised so that between radially magnetised magnets there are tangentially magnetised magnets, with the possibility to produce a magnetic Halbach circuit. The bearing unit of the electric machine comprises magnetic radial bearings placed in gaps between edges of end shields of the power generator and rotor surfaces facing them, and also comprises magnetic thrust bearings placed in gaps between surfaces of end shields of the power generator and rotor ledge surfaces facing them.

EFFECT: improved resource of a wind plant and its power generator, reduced friction in bearings, increased circumferential speed of power generator inductor, self-unwinding of the rotor at low wind speeds.

5 cl, 7 dwg