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INVENTION
Patent of the Russian Federation RU2205293
WIND POWER STATION
The name of the inventor: Khanov Nafit Zarifovich
The name of the patent holder: Khanov Nafit Zarifovich
Address for correspondence: 450000, Ufa, Glavpochtamt, PO Box 1420, N.Z. Khanov
The effective date of the patent: 2001.06.08
The invention relates to wind energy and can be used to provide electricity to various consumers. The technical result of extracting cheap electric power in unlimited quantities using wind energy is provided by the fact that a wind power plant comprising a tower with an inside shaft and an electric generator with rotor and stator poles according to the invention additionally comprises rims contacting the rollers of a tower having a In the lower part of the float in the pool with water, and in the upper part - hinged arrows with jalousie at the ends, on top of which on the vertical axis there are flags with rotation stops, the shaft is hollow and rotates together with the rotor poles at a constant frequency and performs the functions of the rotor Generator of the wind farm, and the tower together with the stator poles serves as a stator of the wind power generator.
DESCRIPTION OF THE INVENTION
The invention relates to wind energy and can be used to provide electricity to various consumers.
A carousel wind turbine is known which contains rotary blades connected to vertical struts, a support tube, a vertical shaft located therein kinematically connected to the blades and a generator, support disks with annular thrusts arranged on them, cooperating with the ends of the pillars. The windmill also comprises upper and lower carriers provided with rollers that contact the outer surface of the pipe and guide holes, and the ends of the posts are arranged in the latter. In addition, the wind turbine comprises an electric motor with a gear connected to an annular ring gear mounted on the support disk. The blades are provided with slots and are connected by axes with brackets fixed to the posts with rollers at their ends (see, for example, SU 1548503 A1, class F 03 D 5/02, 07.03.1990), taken as the closest analogue (Prototype) of the invention.
The disadvantages of a wind turbine are:
- low torque on the rotor shaft of the generator due to the proximity of the rotary blades to the center of rotation, and wind ricochet from their flat surfaces when they are not perpendicular to the direction of the wind;
- manual control of the rotation of the reference disk, as well as the response time inertia to changes in wind direction;
- instability of the rotor speed of the generator, and, consequently, of the frequency of the current;
- increased noise from rubbing surfaces;
- Insecurity from climatic influences (icing, etc.).
The technical result of extracting cheap electric power in an unlimited quantity using wind energy is provided by the fact that a wind power plant containing a tower with a shaft located inside and an electric generator with rotors and stator poles according to the invention additionally comprises rims contacting the rollers of a tower having a tower In the lower part of the float in the pool with water, and in the upper part - hinged arrows with jalousie at the ends, on top of which on the vertical axis there are flags with limit stops, the shaft is hollow and rotates together with the rotor poles at a constant frequency and performs the functions of the rotor Generator of the wind farm, and the tower together with the stator poles acts as a stator of the wind power generator.
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FIG. 1 shows a wind power station (WEC) in general view;
In Fig. 2 - the interaction of flags and flaps at different positions of the louver relative to the direction of the wind;
FIG. 3 is a diagram of stabilizing the rotor speed of a generator of a wind farm.
The wind power plant (VES) consists of a tower 1, inside which there is a pool 2 with water in the lower part. The poles of the stator windings of the VES generator are fixed on the inner surface of the tower 1 and the rollers 4. The tower 1 together with the stator poles 3 serves as the stator of the generator, and for the wind farm.
A float 5 is placed in the basin 2 with water, in the center of which a hollow shaft 6 is vertically fixed, on the outer surface of which there are fixed the rims 7 that contact the rollers 4 of the tower 1, and the poles 8 of the rotor windings that together with the hollow shaft 6 function the rotor of the generator of the wind farm .
On the upper part of the hollow shaft 6, horizontally and hingedly, which includes brackets 9 and pivots 10, arrows 11 are fastened to the ends of which the blinds 12 with the flaps 13 are fastened.
On the vertical louver 12, flags 15 are mounted on the vertical axis 14, and the flaps of the 15 A and 15 B flags
Arrows 11 with jalousie 12 are supported in a horizontal position on cables 16, the upper ends of which are attached to the top of the hollow shaft 6.
VETROELECTRIC POWER STATION WORKS AS FOLLOWING:
When the louver 12 moves from the southern position clockwise to the northern one, the flag 15 under wind pressure is pressed against the stop "A", while the electrical contacts of the flag 15 close, connecting electrically the solenoids of the flaps 13 with the electronic circuit for stabilizing the rotor speed of the generator 6 of the wind farm.
When the louver 12 moves from the northern position clockwise to the south, the flag 15 under wind pressure is pressed against the stop "B", breaking the electrical contacts and disconnecting the solenoids of the flaps 13 from the electronic stabilization circuit (ESS) of the rotor speed of the VES generator. The ESS has the ability to control the solenoids of the flaps 13 only with the closed electrical contacts of the flag 15, i.e. when the louver 12 moves from the southern position clockwise to the north.
When the supply voltage is applied to the ESS, the standard frequency generator (RNG) at 50 Hz starts to output a stable frequency to the first input of the comparison circuit (CC). At the initial moment, the frequency of the current from the VES generator is not fed to the second input of the CC, whereby the CC via the closed electrical contacts of the flag 15 applies voltage to the solenoids closing the shutters 13 of the louvre 12. With the closing of the flaps 13, which are arranged in a semicircle, the louvres 12 begin to perceive the wind pressure And move around the circumference, rotating the hollow shaft 6, which together with the poles rotor generator VES. With the beginning of the rotation of the rotor 6, the wind generator generates a current with a lower frequency than 50 Hz, which is fed to the second input of the SS. The CC, catching a mismatch of frequencies, does not turn off the previously applied voltage to the solenoids of the valves through the closed electrical contacts of the flag 15.
With increasing rotational speed of the rotor 6, the frequency of the current at the second input of the SS increases to 50 Hz. At the coincidence of the frequencies of the VES generator and the RNG, the comparison circuit through the closed electrical contacts of the flag 15 de-energises the solenoids of the flaps 13.
In this case, the leaflets 13 are opened by means of springs, whereby the louvers 12 do not perceive the wind pressure. As a consequence, the speed of rotation of the rotor 6 slows down, which leads to a decrease in the frequency of the current flowing to the second input of the SS.
The non-coincidence of frequencies at the first and second inputs is captured by the SS. CC, reacting to the mismatch of two frequencies through the closed electrical contacts of the flag 15, applies voltage to the solenoids of the flaps 13, the louvers 12 of which are closed. The louvers 12 again begin to perceive the wind pressure, which leads to an acceleration of the rotor 6 rotational speed until the frequency of the generator current coincides with the frequency given by the RNG.
CLAIM
A wind power plant comprising a tower with a shaft located inside and an electric generator with rotor and stator poles, characterized in that it additionally comprises rims contacting the rollers of the tower having in the lower part a float in the pool with water, and in the upper part articulated booms with jalousers at the ends On top of which, on the vertical axis, flags with stop limiters are installed, with the shaft being hollow and rotating with a constant frequency along with the rotor poles and performing the rotor functions of the generator of the wind farm, and the tower, together with the stator poles, acts as a stator of the generator of the wind farm.
print version
Date of publication 11.01.2007gg
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