RU2205293C2 - Wind operated power plant - Google Patents

Abstract

FIELD: wind power technology, possibly electric energy supply to different users. SUBSTANCE: wind operated power plant including tower with shaft inside it and electric power generator with rotor poles and stator poles includes in addition rims engaging with rollers of tower. The last has in its lower part float placed in water basin and it has in upper part jointly mounted booms with louver on their ends. On said louver from upstairs flags with rotation limiters are mounted on vertical axles. Said shaft is hollow one and it rotates together with rotor poles at fixed revolution number and it functions as rotor of generator of wind-operated power plant. Tower together with stator poles functions as stator of generator of wind-operated power plant. EFFECT: possibility of producing unlimited quantity of low-cost electric energy. 3 dwg

Description

 The invention relates to wind energy and can be used to provide electricity to various consumers.

 Known rotary wind turbine, which contains rotary blades associated with vertical uprights, a support pipe, a vertical shaft placed in it, kinematically connected with the blades and the generator, support disks with annular thrust bearings placed on them, interacting with the ends of the uprights. The wind turbine additionally contains upper and lower carriers, equipped with rollers in contact with the outer surface of the pipe and guide holes, and the ends of the racks are located in the latter. In addition, the wind turbine comprises an electric motor with a gear connected to an annular gear ring mounted on a support disk. The blades are equipped with slots and connected by axes with brackets mounted on racks at the ends of which rollers are installed (see, for example, SU 1548503 A1, class F 03 D 5/02, 03/07/1990), taken for the closest analogue to the closest analogue (prototype) of the invention.

The disadvantages of a wind turbine are:
- low torque on the shaft of the rotor of the generator due to the close location of the rotary blades to the center of rotation, as well as the rebound of the wind from their flat surfaces when they are not perpendicular to the direction of the wind;
- non-automated rotation of the support disk, as well as the inertia in response time to changes in wind direction;
- instability of the rotation speed of the rotor of the generator, and consequently, the frequency of the current;
- increased noise from rubbing surfaces;
- insecurity from climatic influences (icing, etc.).

 The technical result, which consists in the extraction of cheap electricity in unlimited quantities using wind energy, is ensured by the fact that the wind farm comprising a tower with a shaft located inside and an electric generator with rotors and stator poles according to the invention additionally contains rims in contact with the rollers of a tower having in the lower part there is a float in the pool with water, and in the upper part there are articulated arrows with louvers at the ends, on top of which a flag is set on the vertical axis with stops rotation, the shaft is hollow and together with the rotor poles is rotated at a constant frequency, and perform functions of wind power generator rotor and the tower together with the stator poles of the stator acts as the wind power generator.

Figure 1 shows a wind farm (wind farm) general view;
in FIG. 2 - interaction of flags and flaps at various positions of the blinds relative to the direction of the wind;
figure 3 is a diagram of the stabilization of the rotational speed of the rotor of a wind farm generator.

 The wind farm (wind farm) consists of a tower 1, inside of which in the lower part there is a pool 2 with water. On the inner surface of tower 1, the poles 3 of the stator windings of the wind farm generator are fixed, as well as the rollers 4. Tower 1, together with the stator poles 3, performs the functions of the generator stator and also the housing of the wind farm.

 A float 5 is placed in the water pool 2, in the center of which a hollow shaft 6 is vertically fixed, on the outer surface of which are fixed rims 7 in contact with the rollers 4 of the tower 1, as well as the poles 8 of the rotor windings, which, together with the hollow shaft 6, serve as the rotor of the wind turbine generator .

 On the upper part of the hollow shaft 6 horizontally and pivotally, which includes the brackets 9 and pivots 10, arrows 11 are attached, at the ends of which the blinds 12 with the wings 13 are attached.

 On top of the blinds 12 on the vertical axis 14, flags 15 are installed, as well as rotation limiters of the flag 15 A and 15 B.

 Arrows 11 with shutters 12 are supported in horizontal position on cables 16, the upper ends of which are mounted on the upper part of the hollow shaft 6.

 Wind power works as follows.

 When the blinds 12 move from the south position clockwise to the north, the flag 15 is pressed against the limiter “A” under wind pressure, while the electrical contacts of the flag 15 are closed, electrically connecting the shutters 13 with the electronic circuit for stabilizing the rotational speed of the rotor 6 of the wind turbine generator.

 When the blinds 12 move from the north position clockwise to the south, the flag 15 is pressed against the limiter “B” under wind pressure, disconnecting the electrical contacts and disconnecting the solenoids of the shutters 13 from the electronic stabilization circuit (ESS) of the rotational speed of the rotor of the wind turbine generator. The ESA has the ability to control the solenoids of the valves 13 only with closed electrical contacts of the flag 15, i.e., when the blinds 12 move from the south position clockwise to the north.

 With the supply voltage to the ESS, the standard frequency generator (RNG) at 50 Hz starts to give a stable frequency to the first input of the comparison circuit (SS). At the initial moment, the current frequency from the wind farm generator does not arrive at the second input of the SS, due to which the SS, through the closed electrical contacts of flag 15, supplies voltage to the solenoids closing the shutters 13 of the blinds 12. With the shutters 13 located in a semicircle, the shutters 12 begin to absorb wind pressure and move around the circle, rotating the hollow shaft 6, which is, together with the poles, the rotor of the wind farm generator. With the beginning of the rotation of the rotor 6, the WES generator begins to generate a current with a lower frequency than 50 Hz, which is supplied to the second input of the SS. SS, catching the frequency mismatch, does not turn off the previously applied voltage to the leaf solenoids through the closed electrical contacts of the flag 15.

 With increasing rotational speed of the rotor 6, the current frequency at the second input of the SS increases to 50 Hz. At the moment of coincidence of the frequencies of the WES generator and the RNG, the comparison circuit through the closed electrical contacts of the flag 15 deenergizes the solenoids of the valves 13.

 In this case, the shutters 13 are opened by means of springs, whereby the shutters 12 do not perceive wind pressure. As a result of this, the rotational speed of the rotor 6 is slowed down, which leads to a decrease in the frequency of the current supplied to the second input of the SS.

 Appeared frequency mismatch at the first and second inputs is captured by the SS. SS, responding to the mismatch of the two frequencies through the closed electrical contacts of the flag 15, applies voltage to the solenoids of the valves 13, the blinds 12 of which are closed. The blinds 12 again begin to perceive wind pressure, which leads to an acceleration of the rotor 6 speed until the generator current frequencies coincide with the frequency issued by the RNG.

Claims (1)

 A wind power station comprising a tower with a shaft located inside and an electric generator with rotor and stator poles, characterized in that it further comprises rims in contact with the rollers of the tower, which has a float in the lower part of the pool with water and articulated booms with shutters at the top , on top of which, on the vertical axis, flags with rotation limiters are installed, and the shaft is hollow and, together with the rotor poles, rotates at a constant frequency and acts as the rotor of the generator power plants, and the tower, together with the stator poles, serves as the stator of the generator of the wind power station.

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