• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The wind turbine has a plurality of wing profiles (1, 2, 3) positioned around a rotation axis (7) and guided along an orbit (17). These are movable for adjusting the respective angle of attack by its own axis of rotation, by means of a respective linkage (11, 12, 13) which is connected to an eccentric (16). Its eccentric position (A) is adjustable relative to the axis of rotation (7) of the wind turbine. The adjustment is made by a control device (20), which is connected on the one hand with a measuring device (18) for measuring the wind direction and on the other hand with a drive (19). Through this, the eccentric (16) is rotatable or pivotable about an acentrically arranged axis. The drive (19) may have a drive pinion, which drives via a chain an engagement element in the form of a ring gear, which in turn is arranged eccentrically on the eccentric (16). The axis of the engagement element may be coaxial with the axis of rotation (7) of the wind turbine.
    公开号:CH711263A2
    申请号:CH00953/15
    申请日:2015-06-30
    公开日:2016-12-30
    发明作者:Bühler Roman
    申请人:Bühler Roman；
    IPC主号:
    专利说明:

    The present invention relates to a wind turbine having a plurality of spaced around a common axis of rotation around and guided along an orbit, vertically arranged wing profiles, which are each movable about a respective axis of rotation for adjusting a respective angle of attack, wherein for adjusting the angle of attack the wing profiles at least one linkage is present.
    Wind turbines with a vertical arrangement of the rotor are becoming increasingly interesting for decentralized power generation. The advantages are high efficiency with low investment. In addition, the smaller construction has a positive effect on the approval of building applications. The vertical arrangement of the rotor allows the use of weak, variable-gusty winds and produces neither noise nor restless shadows.
    In such a wind turbine, the rotor has a plurality of spaced apart about a common axis of rotation and also arranged vertically wing profiles. To increase the efficiency of the wing profiles are preferably designed so that they do not use the dynamic pressure but a hydrofoil effect. For the operation of these special wind turbines, it is imperative that the orientation of the airfoils is continuously adjusted depending on the wind direction. In this context we also speak of pitch setting. The adjustment of the respective angle of attack of the airfoils is controlled via a arranged in the common axis of rotation eccentric and a leading from there to the individual airfoils linkage. The detection of the wind direction has hitherto been via a mechanical wind vane. The latter must be arranged on a support arm outside the immediate area of the sash profiles. It is obvious that this solution of the sash adjustment has a number of technical disadvantages, both in terms of reliability and susceptibility to interference and in terms of aerodynamics. In addition, the response of the controller to the typical wind, changing wind strengths and wind directions is not really optimal. This also means that the efficiency of the wind turbine significantly decreases in unsteady wind conditions.
    On the basis of these findings, the invention has the object to provide a wind turbine, which is improved over the prior art both in terms of reliability and in terms of efficiency.
    The wind turbine according to the invention corresponds to the characterizing features of claim 1. Further advantageous embodiments of the inventive concept are apparent from the dependent claims.
    Hereinafter, preferred embodiments of the invention will be described in more detail with reference to the drawing.<Tb> FIG. 1 <SEP> is a schematic plan view of a wind turbine for explaining the function;<Tb> FIG. 2 shows a partial plan view of a wind turbine according to the invention with five wing profiles;<Tb> FIG. 3 <SEP> shows a partial view of the wind turbine according to the invention according to FIG. 2;<Tb> FIG. 4 shows the detail framed in FIG. 2 of the construction in the region of the eccentric;<Tb> FIG. 5 and 6 <SEP> show further constructional details of the same eccentric;<Tb> FIG. 7 <SEP> shows the arrangement of a drive in the region of the eccentric according to FIGS. 2 to 6.
    Fig. 1 of the drawings is used essentially to illustrate the principle of operation of a wind turbine. The wind turbine has a plurality of wing profiles 1, 2 and 3, which are connected by means of at least one respective strut 4, 5 and 6 with a common, central axis of rotation 7. It goes without saying that the illustrated airfoils 1 to 3 are to be understood only as an example. It could also be a different number of differently shaped sash profiles are selected. The embodiment according to FIG. 2 has, for example, five airfoils. In any case, during the operation of the wind turbine, the airfoils 1 to 3 rotate at a distance around the axis of rotation 7. At the same time you are continuously aligned so that the wind optimally meets them, the wind turbine turns under the best possible use of power and generates electricity. To adjust their angle of attack, the sash profiles 1 to 3 are each about its own, also vertical axis of rotation 8, 9 and 10 movable. The angle of attack is determined in each case via a linkage 11, 12, 13, 14 and 15, wherein in the scheme of FIG. 1, only three linkages are available. This linkage connects a point located outside the rotational axis 8, 9 and 10 on the wing profile 1 to 3 with an adjusting device in the region of the axis of rotation 7. The linkage 11, 12 and 13 is indicated in dashed lines in Fig. 1 and is by an eccentric 16 respectively out of the axis of rotation 7 out. During the rotation of the wind turbine, the angle of attack of the airfoils 1 to 3 is adjusted by the axis of rotation 7 as a function of the wind direction W and the respective position with respect to the orbit 17. The angles of incidence shown are examples for better understanding of the invention. The aforementioned components are usually arranged on a mast. The components of a wind turbine usually also include an anemometer, that is, a device for measuring the wind speed. The vertical and rotating about the axis of rotation 7 wing profiles 1 to 3 are connected by means of the already mentioned struts 4 to 6 with the mast, or with a rotor shaft. At a distance from the struts 4 to 6, the linkage 11, 12, 13, 14 and 15, which ensures that the wing profiles 1 to 3 continuously assume the changing, respectively optimal angle of attack during rotation. For this purpose, an eccentric 16 is present, as shown in Fig. 4.
    According to the invention, at least one measuring device 18 for measuring the wind direction is present instead of a conventional wind vane. This is only indicated by dashed lines in the functional diagram of Figure 1; FIG. 1 is not relevant with regard to the shape and positioning of this measuring device 18. The measuring device 18 for measuring the wind direction may be a wind direction sensor. In any case, a signal is generated which is forwarded via a corresponding electrical or electronic control device 20 to a drive 19, which in turn adjusts the eccentric 16. The task of the control device 20 is to convert the signal incoming from the measuring device 18 for measuring the wind direction into a control command corresponding to the detected wind direction for the drive 19.
    Looking at the area of the eccentric 16 in Fig. 4, one sees the in this case five wing profiles adjusting linkage 11, 12, 13, 14 and 15. The eccentric 16 has attachment points 21, 22, 23, 24 and 25 for the respective linkage 11-15. The attachment points 21, 22, 23, 24 and 25 may be flange-like, wherein the respective linkage 11, 12, 13, 14 and 15 may be fastened by means of a threaded bolt 26. The rotating components are preferably held by ball bearings. The axis of rotation of the airfoils 1-3 is also denoted by 7 here.
    As is apparent from the principle of Fig. 1 and in the technical detail of Fig. 4, along a circular path B about the axis 7 of the wind turbine rotating eccentric 16 is not stationary on a struts 4, 5 and 6 supporting and Arranged about the rotation axis 7 rotating pivot bearing. Rather, the eccentric 16 with respect to its eccentric position A relative to the axis of rotation 7 of the wind turbine is kept movable and adjustable.
    The adjustment of the eccentric 16 is the drive 19 as shown in FIG. 4 and 6. In the preferred embodiment, this is an electric motor, in particular an electric geared motor. Via a corresponding adjustment mechanism 27, which can be partially seen in FIGS. 5, 6 and 7, the position A of the eccentric 16 can be displaced relative to the axis of rotation 7.
    For the purpose of adjusting the eccentric 16, an adjusting mechanism 27 is present. For this purpose, the adjusting mechanism 27 has at least one engagement element 28 arranged on the eccentric 16. About this attack element 28, the force of the drive 19 is transferable to the eccentric 16, that this is adjustable with respect to its position A.
    In the illustrated embodiment, the engagement element 28 is a sprocket, see Figs. 5 and 6. On the drive side, a gear 29 is present, see FIG. 7. The trained as a sprocket engaging element 28 is arranged by means of a corresponding bearing 30 on the eccentric 16. Der Exzenter 16 ist mit dem Exzenter 16 verbunden. The attack element 28 is in this construction centric to the axis of rotation 7 of the wind turbine, but thus eccentric to the eccentric 16. Thus, if the eccentric 16 is rotated about the axis of its body to a rotational axis 7, so its position changes A, that is, its center, to Rotation axis 7.
    The trained here as a sprocket engagement element 28 and the gear 29 on the drive 19 associated gear act together by means of a drive chain, not shown, or a V-belt. By rotation of the gear 29 so the eccentric 16 is eccentrically rotated via the drive chain or the V-belt and the engagement element 28.
    The above-described technical solution of Verstellmechanismusses 27 is simple and reliable. It is not excluded, however, to form this adjustment mechanism 27 technically different. Whether it is that the engagement element 28 and / or the drive-side element are constructed without teeth or a completely different solution is chosen. Theoretically conceivable, for example, would be an adjusting mechanism 27 in the manner of an adjustable connecting rod. It would be conceivable, if not sensible, to provide more than just one drive 19. Likewise, a linear displacement of the eccentric 16 along a corresponding guide.
    Thanks to this construction, the sash profiles 1 to 3 together and controlled to wind turns and, in cooperation with an anemometer, also respond to gusts.
    It is within the scope of the invention according to claim 1, the wind turbine differently than drawn and described form. This affects both the number and shape of the sash profiles as well as the other components. Thus, the struts 4, 5 and 6 and the linkage 11, 12, 13, 14 and 15 may be designed differently, as long as they meet the technical purpose of a strut, or a linkage. The eccentric 16 may have a shape other than that shown.
    权利要求:
    Claims (13)
    [1]
    1. Wind turbine with a plurality of spaced around a common axis of rotation (7) around and along an orbit (17) out, vertically arranged wing profiles (1, 2, 3), each for adjusting a respective angle of attack about its own axis of rotation ( 8, 9, 10) are movable, wherein for adjusting the angle of attack of the wing profiles (1, 2, 3) at least one linkage (11, 12, 13, 14, 15) is present, characterized by at least one measuring device (18) for measuring the wind direction, which is signal-technically connected via a control device (20) to at least one drive (19), which is in operative connection with the linkage angle of the wing profiles (1, 2, 3) controlling linkage (11, 12, 13, 14, 15) stands.
    [2]
    2. Wind turbine according to claim 1, characterized in that the at least one measuring device (18) for measuring the wind direction is a wind direction sensor.
    [3]
    3. Wind turbine according to claim 1 or 2, characterized in that the linkage (11, 12, 13, 14, 15) with an eccentric (16) is connected, the eccentric position (A) relative to the axis of rotation (7) of the wind turbine through the at least one drive (19) is adjustable.
    [4]
    4. Wind turbine according to claim 3, characterized in that the at least one drive (19) is an electric motor.
    [5]
    5. Wind turbine according to claim 3 or 4, characterized in that the eccentric (16) about a relative to the eccentric (16) itself eccentrically arranged axis is rotatably or pivotally mounted.
    [6]
    6. Wind turbine according to claim 5, characterized in that the eccentric (16) is mounted coaxially to the axis of rotation (7) of the wind turbine.
    [7]
    7. Wind turbine according to claim 5 or 6, characterized in that on the eccentric (16) an engagement element (28) for a drive means is arranged acentrically.
    [8]
    8. Wind turbine according to claim 7, characterized in that the engagement element (28) is arranged coaxially to the axis of rotation (7) of the wind turbine.
    [9]
    9. Wind turbine according to claim 7 or 8, characterized in that the engagement element (28) has a substantially part-circular or circular cross-section.
    [10]
    10. Wind turbine according to claim 9, characterized in that the engagement element (28) is a gear or ring gear.
    [11]
    11. Wind turbine according to one of claims 4-10, characterized in that the drive (19) is an electric geared motor with a drive pinion (29).
    [12]
    12. Wind turbine according to one of claims 7-11, characterized in that as drive means for transmitting power from the drive (19) to the engagement element (28), a belt, V-belt or a chain is present.
    [13]
    13. Wind turbine according to claim 3, characterized in that the eccentric (16) or the linkage (11, 12, 13, 14, 15) is guided on a linear guide.
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    同族专利:
    公开号 | 公开日
    CH711263B1|2019-02-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2021-01-29| PL| Patent ceased|
    优先权:
    申请号 | 申请日 | 专利标题
    CH00953/15A|CH711263B1|2015-06-30|2015-06-30|Wind turbine.|CH00953/15A| CH711263B1|2015-06-30|2015-06-30|Wind turbine.|
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