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INVENTION
Patent of the Russian Federation RU2204050
VETROGENERATOR
The name of the inventor: Malanin VI; Kvashnin E.M .; Maksimov AA; Kovalev SG; Trofimov P.F .; Maksimov AA
The name of the patent holder: Altai Scientific Research Institute of Mechanical Engineering Technology
Address for correspondence: 656002, city of Barnaul, ul. Severo-Zapadnaya, 2, OAO ANTITIM
Date of commencement of the patent: 2001.03.21
The invention relates to wind power and can be used in wind turbines. The technical result of simplifying the construction, providing ease of installation and dismantling of the wind turbine and simplicity of maintenance is provided by the fact that the wind generator comprising a magnetoelectric generator with a stator and a rotor fixed to the wings of the wind wheel according to the invention has a housing, Made in the form of a ring with an inserted inlet made in the form of a confuser and an outlet made in the form of a diffuser, the curve forming the surface of the confuser corresponds to the curve forming the surface of the diffuser, while the body contains a rigidly fixed shaft with wings placed on it And the wings are rotatable about the longitudinal axis of the shaft, while a rotor is formed on the wings of the wind wheel, made in the form of permanent magnets, and a stator is arranged symmetrically to the wings in the form of coils with a wire fixed to, for example, a disk, Is placed on the shaft motionless, and there is a gap between the stator and the rotor, in addition, the shaft is fixed to the support with the possibility of rotation about the axis of the support.
DESCRIPTION OF THE INVENTION
The invention relates to wind power and can be used in wind turbines.
A rotating electric machine with permanent magnets is known, containing an excitation system made in the form of poles made of permanent magnets reinforced by a magnetically-leading yoke, an armature with a winding and magnetic shunts (USSR patent, H 02 K 23/04, 21/00 of 21.11.83, Published by the BI from 15.12.89).
The disadvantage of this machine is its structural complexity, complexity in repair and maintenance, high metal consumption, which makes it less suitable for wind power.
A gearless wind turbine is known that contains a magnetoelectric generator with an arc stator and a rotor fixed to the wings of the wind wheel, the rotor being made in the form of a rim made of ferromagnetic rubber with permanent magnets embedded in it (as N 1170187, F 03 D 1/00 of 11.04 .83, published by BI N 28 dated July 30, 1985 - a prototype).
This wind generator is structurally simple, it can be easily manufactured and assembled, just to carry out repairs and maintenance. A disadvantage of the present invention is that the permanent magnets are located at the ends of the wind wheel in the ferromagnetic rubber, which greatly increases the weight of the wind wheel, and this reduces the efficiency of the wind turbine.
Due to the considerable weight of the wind wheel, it is difficult to place several wind turbines on one shaft in series to increase the power of the wind farm.
The aim of the proposed invention is to simplify the design, ease of installation and dismantling of the wind turbine, and simplicity in maintenance. In addition, the object of the invention is to consistently mount, on the same shaft, the required number of wind generators, which is determined by the required power of the wind farm.
The object is achieved by a wind generator comprising a magnetoelectric generator with a stator and a rotor fixed to the wings of the wind wheel according to the invention, it comprises a housing made in the form of a ring with an inlet port made in the form of a confuser and an outlet made in the form of a diffuser, , Forming the surface of the confuser, corresponds to the curve forming the surface of the diffuser, while in the body there is placed a rigidly fixed shaft with wings of the wind wheel placed on it, the wings being rotatable about the longitudinal axis of the shaft, while the wings of the wind wheel are equipped with a rotor made in the form of permanent Magnets, and symmetrically to the wings is installed a stator made in the form of coils with a wire, fixed, for example, to a disk, while the disk is located on the shaft motionless, and between the stator and the rotor there is a gap, in addition, the shaft is fixed to the support with the ability to rotate about the axis Support.
According to point 1 of the invention, a stabilizer is provided at the end of the shaft, made in the form of a plate fixed to the shaft parallel to the axis of the support.
The analysis of the proposed solution with the prototype made it possible to distinguish features that distinguish the proposed solution from the prototype, which corresponds to the criterion of "novelty".
Comparative analysis of the proposed solution with the known did not reveal solutions, the signs of which completely coincide with the characteristics of the proposed solution, which corresponds to the criterion "inventive level".
In the figure, a wind power plant with three wind generators is schematically shown.
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The wind generator consists of a magnetoelectric generator 1 with a stator 2 and a rotor 3 fixed on the wings of the wind wheel 4, the magnetoelectric generator 1 being placed in the housing 5 in the form of a ring with an inlet 6 made in the form of a confuser and an outlet 7 made In the form of a diffuser, the curve forming the surface of the confuser 6 corresponds to the curve forming the surface of the diffuser 7, while a rigidly fixed shaft 8 is placed in the body 5 with the wings of the wind wheel 4 placed on it, the wings being mounted on bearings (not shown) Around the longitudinal axis of the shaft 8, a rotor 3 is mounted on the wings of the wind wheel 4, made in the form of permanent magnets fixed on the wings of the wind wheel 4, for example with screws (not shown), symmetrically to the wings of the wind wheel 4 there is a stator 2 made in the form of coils with a wire fixed , For example, on the disk 9. The mounting of the coils can be different: screws, clamps, etc. The disc 9 is located on the shaft 8 motionless, and there is a gap between the rotor 3 and the stator 2. The size of the gap should not exceed 2 mm, since with a larger gap the power of the wind generator is significantly reduced. The shaft 8 of the wind turbine is mounted on the support 10 with the possibility of rotation about the axis of the support. To orient the windmill (wind farms) in the direction of the wind, the stabilizer plate 11 is fixed to the shaft 8. The plate is fastened (bolts, screws by welding) parallel to the longitudinal axis of the support 10. |
The shaft 8 of the wind turbine is mounted on the support 10 with the possibility of rotation about the axis of the support.
To orient the windmill (wind farms) in the direction of the wind, the stabilizer plate 11 is fixed to the shaft 8. The plate is fastened (bolts, screws by welding) parallel to the longitudinal axis of the support 10.
The wind turbine is located in the casing 5 with an inlet made in the form of a confuser 6 and an outlet 7 made in the form of a diffuser.
This execution became necessary to increase the air pressure on the blades, which is achieved by performing an inlet 6 made as a confuser.
The flow of air by the walls forming the confuser contracts and accelerates its movement, and hence the pressure on the blades of the wind generator, and since there is a gap between the body and the wings, and behind the wings of the wind generator there is a depression, the air ejection occurs, and its additional flow intensifies the pressure on wings. The air exhausted in the wind generator is thrown out through the diffuser, accelerating its movement. Since wind farms can be equipped with several wind generators (there are 3 of them in the drawing), then an alternation is obtained: a confuser, a diffuser, a confuser, etc.
This ensures a uniform air pressure on the wings of the wind turbine, when they are sequentially placed on the shaft 8 due to air ejection. The volume of ejection is regulated by the gap between the confuser and diffuser, a number of placed wind generators.
THE WIND GENERATOR WORKS AS FOLLOWS:
The air flow through the confuser 6 of the housing 5 is supplied to the wings of the wind wheel 4, and since the wings of the wind wheel 4 are mounted on bearings (not shown) fixed to the shaft 8, the wings begin to rotate by rotating the permanent magnets that act as the rotor 3. In the stator 2 In the form of coils attached to the disk, an electromotive force is induced. The resulting electric current is output to the ring (not shown) of the support 10 and then enters the accumulator (not shown).
When the direction of the air flow changes, the wind generator under the action of the stabilizer 11 orientates it in the direction of air movement. Behind the wings of the wind wheel 4, a vacuum is created, and the airflow rushes into the gap between the wings of the wind wheel 4 and the body 5. An additional air pressure is created on the wings. The exhaust air through the diffuser 7 accelerates to the blades of the next wind generator, and since there is an adjustable gap between the diffuser of the first wind generator and the confuser of the next one, air is ejected, creating an additional flow, and thus additional air pressure on the wind wheel, thereby ensuring a uniform Work of all wind generators. In addition, such a solution allows easy installation and dismantling of both the components of the wind turbine and its overall performance. Thus, simplicity in installation, dismantling and maintenance is achieved.
CLAIM
A wind generator comprising a magnetoelectric generator with a stator and a rotor fixed to the wings of the wind wheel, characterized in that it comprises a body made in the form of a ring with an inlet opening made in the form of a confuser and an outlet made in the form of a diffuser, Which forms the surface of the confuser, corresponds to the curve forming the surface of the diffuser, while in the body there is placed a rigidly fixed shaft with wings of the wind wheel located on it, the wings being rotatable about the longitudinal axis of the shaft, while the rotors of the wind wheel are made in the form of permanent magnets , And the stator is symmetrically mounted to the wings in the form of coils with a wire fixed to, for example, a disk, the disk being located on the shaft motionless, and there is a gap between the stator and the rotor, moreover, the shaft is fixed to the support with the possibility of rotation about the axis of the support .
2. A wind generator according to claim 1, characterized in that a stabilizer is provided at the end of the shaft in the form of a plate fixed to the shaft parallel to the axis of the support.
print version
Publication date 31.01.2007gg
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