Wind power unit stator

FIELD: power engineering.

SUBSTANCE: invention relates to the field of wind power engineering, namely, to wind power generators. The stator of the wind power generator comprises coils, end and radial magnetic conductors, an excitation source. The end magnetic conductor is made in the form of a ferromagnetic cross beam of wind wheels fixation. The advantage of the invention is manufacturability based on using the cross beam in two properties: an element of a magnetic conductor, which makes it possible to exclude a response magnetic conductor in a magnetic system of a stator, and usage of the same cross beam as a bearing structure with wind wheels installed on it.

EFFECT: invention is aimed at reduced weight and dimensions of a wind power unit.

2 dwg

 

The invention relates to the field of wind energy, namely wind power with a predominantly slow-moving wheels.

Known wind turbines with the stators of the traditional type [A. S. USSR №8617116 / I. P. Kopylov and others - Gearless wind turbine, BI NO. 11, 1981, F03D 1/100] or segment [RF Patent №2204734 / A. M. Litvinenko - Stator wind power, BI No. 14, part on 20.05.2003, No. 2001129417/06, dated 31.10.2001, MKI F03D 9/100; RF Patent №2298687 - Stator vetroelektroagregatom, publ. BI No. 13, dated 10.05.2007, s-ka No. 2006104645/06, dated 14.02.2006, IPC F03D 9/00; NC 21/00].

Of all known analogues closest is the stator vetroelektroagregatom segment type [RF Patent №2383779 / A. M. Litvinenko, M. A. Gribov - Stator wind power, publ. 10.03.2010, bull. No. 7, s-ka No. 2008112386/06, from 31.03.2008], which is made on the basis of the magnetic system and includes a coil, a source of excitation and the magnetic cores. The magnetic cores are mounted on the coil in a plane parallel to the planes of rotation of the windwheels, wherein the air gaps of the magnetic cores are oriented in opposite directions from the center of the coil to its periphery. The advantage of this stator is its high technology based on the use of the winding bobbin type, but also on the fact that when a possible shunting of one of the cores (when stopped in�crocolite) the magnetic flux in the other is not reduced, when rotation of two windwheels and accordingly the rotary elements of the EMF in the coil branches are added.

The disadvantage of this stator is increased consumption of copper, as a ring-shaped coil parts that are not covered magnetic wires.

The invention is directed to reducing the weight and dimensions of the generator while minimizing its cost.

This is achieved in that the stator vetroelektroagregatom containing coils, magnetic cores, the excitation source according to the invention is further provided with a mechanical magnetic core, made in the form of a ferromagnetic yoke.

The technical result is achieved due to the minimum size of the coil, and dual-use ferromagnetic yoke: as the support member and the magnetic circuit element.

The invention is illustrated by drawings, where Fig.1 shows a stator vetroelektroagregatom, front view, Fig.2 - top view.

The stator is included in the vetroelektroagregatom that has a tower 1, a rotary base 2, on which the fortified ferromagnetic yoke 3 made in the form of end yoke with bearing blocks 4, with the rotating blades of the propeller 5, mounted on the ends of the rotor elements 6. Swivel base is provided with a guide into the wind the plane 7. The stator contains radial�the magnetic core 8, the permanent magnet 9 with a hole covered by the coil 10, which is attached to traverse through a non-magnetic bolt 11. Thus, the structure of the stator includes a radial magnetic circuit 8 (e.g., the crossbar of the "T"-shaped magnetic core) and the end yoke "U" or "D"shaped (for example, front "U"-shaped magnetic core).

The stator operates as follows: upon rotation of the windwheels rotary elements 6 commute magnetic flux in the circuit shown in Fig.2 by a dotted line, which consists of the following sections: a magnetic circuit 8 is a permanent magnet 9 - phase yoke 3 - end air gap 12 - rotary element 6 is a radial air gap 13 - magnetic circuit 8. As a result in the coil 10 of the induced EMF, which is passed on to the consumer. The rotary members 6 made of, for example, in the form of T-shaped elements, a middle rib which is attached to the blades windwheels are thus 2 plots: radial air gap 13, which is located between the yoke 8 and the rotary member 6, and facing the air gap 12, which is located between ferromagnetic yoke 3 and the rotor element 6, in particular its lateral part.

Feasibility advantage of the stator is its high technology based on the use of the yoke 3 in DV�x as element of the magnetic circuit, eliminating the return magnetic circuit in the magnetic system of the stator and using the same beam as the load-bearing structure with mounted propeller. Moreover, the element of the magnetic yoke 3 and acts as korotkozamknutyh damping winding, which improves technical and economic performance of the device.

The stator vetroelektroagregatom containing coils, magnetic circuits, a source of excitation, characterized in that it further provided with a mechanical magnetic core, made in the form of a ferromagnetic yoke.



 

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