RU2634427C2 - Wind power generator - Google Patents

Abstract

FIELD: power industry.

SUBSTANCE: wind power generator with a shaft, a rotor and a modular two-pack stator, according to the invention, the rotor is made in the form of alternating excitation sources with cup magnetic cores mounted along the periphery of the disc and strapped with a band.

EFFECT: improvement of performance due to weight reduction, application of widely used cup magnetic cores.

3 dwg

Description

The invention relates to the field of wind energy and can be used to generate electricity.

Known wind generator [RF patent No. 2383774 / Litvinenko A.M. - Wind Power Generator / Publ. 03/10/2010, Bull. No. 7, application 2008128748/06 dated 07/14/2008, IPC F03D 1/02]. The wind generator contains wind rotors with segment elements, stator segment elements, a rotary base with a tail and a tower. The swivel base is equipped with vertically oriented rods with bearing assemblies, with a high-speed wind wheel installed in the upper bar and a low-speed wind wheel in the lower bar. Stator segment elements are installed between the wind wheels.

The disadvantage is the impossibility of its use with a vertical-axis type wind turbine.

Also known is a wind generator [RF patent No. 2347105 / Litvinenko A.M., Kirkalenko E.I. - Wind power segment type / Publ. 02/20/2009, Bull. No. 5, application 2007127750/06 of 07.19.2007, IPC F03D 9/02], which contains a fixed base, a rotary base, a wind wheel with rotor elements, an arc stator, a tail element, a tail element, a shock-absorbing element and hinges. The rotor elements are made in a U-shape, and the stator element magnetic circuit is in the form of an L-shaped package and has an air gap with a horizontal portion of the rotor element.

Its disadvantage is the inability to use with a vertical axis wind turbine, in addition, the use of a radial excitation system increases the mass and dimensions.

Of all the known analogues, the wind generator [closest to the claimed in the aggregate of essential features] [RF patent No. 2528428 / Litvinenko A.M. - Wind generator of inductor type / Publ. 09/20/2014, Bull. No. 26, application No. 2012104104/07 dated 02/06/2012, IPC F03D 9/02, H02K 1/14], which contains a shaft, a gear rotor, and a modular two-pack stator, each module of the stator packs being made as an excitation source on which it is symmetrically the vertical sides of the L-shaped yokes are installed, on the horizontal sides of which cores with coils are installed. The technical and economic advantage of this wind generator is also the identity of its upper and lower stators, which increases the degree of unification and increases the manufacturability of the design.

The disadvantage of this generator is the inability to use in its composition such a common component as magnets with a cup magnetic circuit, as well as increased overall dimensions.

The invention is aimed at improving performance by reducing weight.

The achievement of the technical result is ensured by the fact that in the wind generator containing a shaft, a rotor and a modular two-pack stator, according to the invention, the rotor is made in the form of a disk, on the periphery of which permanent magnets are installed, the magnetizing axes of which are parallel to the rotor axis of rotation, the magnets are placed in the center of the cup-shaped magnetic cores, with one part of the set of magnets oriented by the free poles to the first stator package, and the other part to the second stator package.

The invention is illustrated by drawings, where in FIG. 1 shows a general view of a generator with an engine; FIG. 2 - reamers of stators and rotor, in FIG. 3 is a top half view of the rotor.

The wind generator contains a base 1, a lower stator 2, a rotor 3, a strut 4, an upper stator 5, a wind turbine 6 (shown conventionally), a shaft 7. Each stator package module contains a U-shaped magnetic circuit 10 with coils 11 attached to the base 8 with bolts 9 The rotor is made in the form of a disk, on the periphery of which cup-shaped magnetic cores are installed, in the center of which permanent magnets oriented parallel to the shaft 7 are mounted 12. In this case, some cups are oriented with their bottom 13 down - see FIG. 2, to the second lower stator package, and the magnets - by the free pole 14 - up, to the first stator package. Magnetic cores with magnets are installed in alternating order so that adjacent magnetic cores are oriented, on the contrary, with their bottoms 15 toward the first stator package, and with free poles 16 toward the second stator package (lower in Fig. 2)

This is further illustrated in FIG. 3, where it is seen that the magnetic cores with the magnets are arranged in alternating order of orientation along the periphery of the disk 17, are tightly in contact with each other along the lines 18 and pulled together by a fastening band 19.

The operation of the device. When the rotor rotates, the magnetic flux at the first time in the first (upper) stator in one module passes through the circuit (Fig. 2): free pole 14 - air gap - magnetic core 10 - air gap - bottom 15 - magnetic cores and contact line 18 - constant magnet. At the next point in time, the free pole 14 is in the zone of the coils 11, i.e. the flow opens, this is facilitated by the fact that in the zone of coils 11, bottoms 15 also appear from the other edge, as a result of which an EMF is induced in coils 11.

The advantage of this generator is the ability to use relatively cheap cup-shaped magnetic cores.

Claims (1)

A wind generator comprising a shaft, a rotor and a modular two-pack stator, characterized in that the rotor is made in the form of a disk, on the periphery of which are installed permanent magnets, the magnetization axes of which are parallel to the axis of rotation of the rotor, the magnets are located in the center of the cup-shaped magnetic circuits, and one part of the kit The magnets are oriented by the free poles to the first stator packet, and the other part to the second stator packet.

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