WO2018212682A2 - Ветроэлектрогенератор - Google Patents
Ветроэлектрогенератор Download PDFInfo
- Publication number
- WO2018212682A2 WO2018212682A2 PCT/RU2018/000303 RU2018000303W WO2018212682A2 WO 2018212682 A2 WO2018212682 A2 WO 2018212682A2 RU 2018000303 W RU2018000303 W RU 2018000303W WO 2018212682 A2 WO2018212682 A2 WO 2018212682A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- wind
- panels
- rotor
- shaft
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Definitions
- the invention relates to wind energy, in particular to
- wind generators and can be used in power plants, mainly with a horizontal axis of rotation.
- the wind turbine contains a horizontal shaft mounted on it with a multi-blade wind wheel (wind rotor) with inner and outer shells, between which the main blades of the first level are located, on the outer shell there are flat blades of the second level, connected to the stiffeners by means of hinges to change the angle of attack of the air flow, depending on wind speed.
- the invention is aimed at increasing the utilization of wind energy.
- the disadvantage is the complexity of the design. Design complexity
- the wind power plant contains a disk-shaped rotor with blades mounted on it, made in the form of wings and located with a gap relative to the rotor shaft mechanically connected with the generator shaft, a fairing mounted on the shaft in front of the rotor by air flow and covering the gap between the inner edges of the blades, and a confuser placed upstream of the rotor.
- the ends of the blades are located at an angle to the axis of the shaft.
- the confuser is installed on the peripheral parts of the blades with the formation of a clearance with a fairing.
- the proposed design does not allow the full use of the positive influence of centrifugal and reactive forces.
- the purpose of the invention is to increase the efficiency of the wind generator (wind power - prototype), reduce its size (in comparison with the prototype) and, as a result, reduce
- the technical task is to change the design of the rotor of the wind generator (wind power plants - prototype), optimize the shape and location of its main parts,
- the wind generator has a rotor, mainly with
- the rotor is designed to convert the kinetic energy of the wind into rotational energy of the shaft of an electric generator. It consists mainly of a conical or conoid-like thin-walled shell (base) on which the panels are fixed.
- the rotor base has a predominantly disk shape mechanically coupled to the shaft of an electric generator.
- a predominantly disk shape mechanically coupled to the shaft of an electric generator.
- sickle-shaped panels are fixed.
- various materials can be used to provide a structural connection, for example, iron-carbon alloys, aluminum alloys, or
- the panels can be fixed to the base in various ways, for example, by welding or otherwise, including a detachable connection.
- the transmission of torque from the rotor to the generator shaft is provided
- the crescent shape of panels having a profile bend is characterized by the angle between the tangent to the panel, on its periphery, and tangent to the circumference of the base and ranges from 3 ° to 60 °. In the range of these values, the optimal curvature of the panel profile is ensured, which in turn provides the best conditions for transmitting torque to the generator shaft.
- the mass of air falling on the base passes through the channels between the panels and moves into the surrounding space, creating reactive forces at a maximum distance from the axis of rotation, which corresponds to the achievement of maximum torque moment on the axis of the generator.
- a smaller angle of this range provides the greatest projection of centrifugal force on a perpendicular to the radius, but makes it difficult to move air from the channel, a larger angle acts in the opposite direction.
- the optimal angle is selected experimentally, taking into account the characteristics of the area (for example, the average wind speed at the installation height).
- the bore sections must monotonously vary from a minimum in the center to a maximum in the periphery. This problem can be solved by replacing a flat base, for example, with a conical one, with a height in the center of half or more of the radius of the base of the device.
- the choice of optimal parameters for moving the air flow in the channels between the crescent-shaped panels and the surface of the base on which they (panels) are mounted and with which they are fastened is determined by the constructive the position of the panel relative to the base. Changing the indicated position changes the geometry of the channel and, therefore, allows you to change the parameters of the movement of the air flow.
- the optimal location of the panel relative to the surface of the base is determined by the angle of its (panel) installation on the base and is in the range from 0 to 30 °, and 0 ° is counted from the axis passing through the cross section of the panel and perpendicular to the plane of the surface of the base.
- the orientation of the installation in air flow can be provided by various devices, for example, a stabilizer mounted on the body of the generator.
- FIG. 1 shows the design of a wind turbine.
- FIG. 2 View A. The shape and location of the sickle panels
- FIG. 3 View A. Shape and location of sickle panels
- FIG. 4 Conical base and arrangement of panels.
- FIG. 5 Conoid shape base and panel layout.
- Section B - B The shape and location of the panels on the basis of the rotor of the wind generator.
- the proposed rotary wind farm ( Figure 1) contains a mechanical rotor having a base 1, for example, in the form of a disk with a circle diameter D with crescent mounted on it
- the base 1 mechanically, for example, is rigidly connected to the shaft of the generator 4, ensuring the transmission of torque from the rotor of the wind part of the installation to the shaft of its electrical part (generator).
- the gap between the surface of the fairing and the end surface of the crescent panels 2 is indicated by the parameter d, which determines the lower boundary the location of the panels 2 on the base 1.
- the lower border of the panels 2 is located on the circle d, providing free movement of air flow in the Central part of the base 1.
- Circle D which is the overall dimension of the rotor with the base 1 and circle d, characterizing the structural gap for the free movement of air flow in its central part, determine the effective working area of the crescent panels, for each of the possible design options. Pos. 5 vertical rack installation.
- FIG. 2 and FIG. Figure 3 shows the rotor options for rotating the rotor clockwise and counterclockwise. Options differ in the location of the panels 2 relative to the base 1.
- FIG. 2 shows a view A (see FIG. 1) of a mechanical rotor for an arrangement of sickle-shaped panels 2 relative to the base 1.
- the angle characterizes the "crescent" - the bending of panels 2 placed on the base 1.
- the crescent of panels 2 having a profile bend is characterized by the angle between the tangent to the panel at its periphery Pos. 6 and tangent to the circumference of the base Pos. 7 and ranges from 3 to 60 °. In the range of these values, the optimal curvature of the panels is ensured, which in turn provides the best conditions for transmitting torque to the generator shaft.
- Size d defines the lower boundary of the arrangement of panels 2 on the base 1 within the disk by the size of the circle D. In section B - B (see Fig. 6) options are shown
- FIG. 3 shows a view A (see FIG. 1) of a mechanical rotor for a second arrangement of sickle-shaped panels 2 relative to the base 1.
- the angle Ct characterizes the “crescent” - bending of panels 2 placed on the base 1.
- Crescent of panels 2 having a profile bend is characterized by the angle between the tangent to the crescent panel 2 on it peripherals Pos. 6 and tangent Pos. 7 to the circumference of the base 1 and
- Size d defines the lower boundary of the arrangement of panels 2 on the basis of 1 within the disk by the size of circle D.
- FIG. 4 shows a variant of the base 1 of a conical shape.
- the conical shape of the base in contrast to the straightforward in the prototype, reduces the turbulence of the air flow by increasing
- the conical shape of the base increases the effective area of the working panels 2, which increases the efficiency of the incident air flow, in comparison with the prototype.
- FIG. 5 shows a variant of the base 1 of the conoid shape.
- the conoid shape of the base 1 in contrast to the rectilinear in the prototype, reduces the turbulence of the air flow, by
- the conoid can be characterized by the radius of curvature R of the base 1.
- FIG. 6 shows a section B - B (see Fig. 2) characterizing the options for the location of the panels 2 on the base 1.
- the angle characterizes the possible deviation of the axis of the panel 2, perpendicular to the base 1 in the plane of section B - B.
- the wind generator assembly is mounted on a support 5, with a device providing orientation by the air flow, for example,
- the air flow falls on the base 1 of the rotor, moves between the crescent panels 2 and moves to the periphery of the base 1.
- the kinetic energy of the air flow when moving between the crescent panels 2 spins the rotor of the wind generator. Under the influence of the air stream, the rotor rotates with the base 1, which is connected to the shaft of the generator and thus, the kinetic energy of the air stream ensures the operation of the generator and the generation of electric energy.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2017116792 | 2017-05-15 | ||
RU2017116792A RU2017116792A (ru) | 2017-05-15 | 2017-05-15 | Ветроэлектрогенератор |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2018212682A2 true WO2018212682A2 (ru) | 2018-11-22 |
WO2018212682A3 WO2018212682A3 (ru) | 2019-01-10 |
Family
ID=64274409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2018/000303 WO2018212682A2 (ru) | 2017-05-15 | 2018-05-14 | Ветроэлектрогенератор |
Country Status (2)
Country | Link |
---|---|
RU (1) | RU2017116792A (ru) |
WO (1) | WO2018212682A2 (ru) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1433995A (en) * | 1918-08-17 | 1922-10-31 | Frank F Fowle | Turbine motor |
SU13902A1 (ru) * | 1929-05-07 | 1930-03-31 | А.К. Красницкий | Ветровод ной двигатель |
UA69486C2 (ru) * | 2002-04-02 | 2004-09-15 | Олександр Антонович Городецький | Ветродвигатель городецкого |
DE102008025719B4 (de) * | 2008-05-29 | 2012-06-14 | Klaus Fichtner | Windkraftanlage |
FR3012180B1 (fr) * | 2013-10-18 | 2018-02-16 | Sebastien Manceau | Eolienne a axe de rotation horizontal comprenant des familles de pales |
-
2017
- 2017-05-15 RU RU2017116792A patent/RU2017116792A/ru not_active Application Discontinuation
-
2018
- 2018-05-14 WO PCT/RU2018/000303 patent/WO2018212682A2/ru active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2018212682A3 (ru) | 2019-01-10 |
RU2017116792A3 (ru) | 2018-11-22 |
RU2017116792A (ru) | 2018-11-15 |
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