RU14458U1 - ALTITUDE WIND POWER INSTALLATION - Google Patents

Abstract

1. High-altitude wind power installation in the form of a glider with a fuselage, a wing with flaps, on which wind motors are mounted, and a tail unit, containing a cable-cable connecting the glider with a ground container, in which a control system is located, characterized in that its wingspan made in the form of a through gap, a longitudinal channel, across which wind motors are located in one row, each of which is installed inside the annular cowl, and hinged sashes are installed at the channel entrance and exit Strongly opening and closing kanala.2. The high-altitude wind power installation according to claim 1, characterized in that the ground container is arranged to suspend it from the glider, while lift-propulsion engines for vertical take-off and landing and horizontal flight are mounted on it.

Description

ALTITUDE VETROZEREGETIC INSTALLATION.

The utility model relates to wind energy, and more specifically to high-altitude wind power installations of high power (up to a thousand kilowatts), which are expanded at an altitude of up to 1000 m above the ground, where the wind speed is significantly higher than that of the earth.

Known high-altitude wind energy installations (VVZU), containing a balloon that is held at a height with a cable, and wind turbines installed on the surface of the balloon, the electricity of which is transmitted to the earth via cable. (Germany, application N 312099, F03D 11/04 and application N 3729087, F03D 5/04)

The disadvantages of such installations are:

- large windage, which in a strong wind can lead to an accident:

- low efficiency due to the relatively low carrying capacity, since one cubic meter of balloon volume can lift to a height of not more than one kilogram of cargo,

Known high-altitude wind power installation (WWEU), containing a glider, which is held at a height due to the lifting force of the wing using a cable (mode of hanging a kite). Wind motors are installed on the wing of the airframe, and the electricity generated by them is transmitted to the earth via cable (Japan, patent N 350369, F03D 9/00, 1992)

The disadvantages of this BB99 are:

1. The low efficiency of the installation (low coefficient of utilization of wind energy) due to the unfavorable interference of wind turbines among themselves due to the interaction of vortices running from the ends of the blades:

 ......., .., | 1 iiiii “III NO Ill

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and e / s

2. Low lifting force and high wing resistance, the flow around which occurs with flow separation due to the placement of wind turbines on the wing surface;

The task that the proposed utility model solves is to increase the efficiency of the WWEU;

Technical results with this are achieved as follows;

1) eliminates the adverse interaction of wind turbines with each other and, as a result, increases the utilization of wind energy BV39:

2) a continuous flow around the wing is realized, and as a result, the lifting force of the wing increases significantly.

Technical results are achieved by the fact that in the well-known high-altitude wind power installation, which is a glider and contains a fuselage, horn with flaps and wind motors, tail unit, as well as a cable - cable connecting the glider with the ground container in which are located .electrical equipment, control cabin, winch , power plant, the following has been done: inside the wing, according to its span, a longitudinal through channel is made in the form of a slit, across which wind motors are located in one row, each of which is installed within the annular obtekat1elya; and at the entrance and exit of the channel mounted hinges, made with the possibility of opening and closing the channel.

In order to carry out an independent flight of a high-altitude installation to a new place of operation, the ground container may be equipped with a device for hanging it to the glider

lifting engines for vertical takeoff and landing and horizontal flight.

On Fig L presents a diagram of a high-altitude wind energy installation in the operating mode of hovering on the principle of a kite.

Figure 2 shows in section a wing of the VVZU for various modes of operation of the VVEU.

In FIG. Figure 3 shows the scheme of the HEI for horizontal flight.

Figure 4 shows the dependence of the coefficient of lift of the wing on the angle of attack for various modes of operation of the WWEU.

In FIG. Figure 5 shows the dependences of the wing lift coefficient on the wing drag coefficient for various operating modes of the VZZU.

A high-altitude wind power installation (Fig.) Contains a fuselage 1 with a wing 2 and a tail unit 3. Wing 2 has flaps 4 and a longitudinal through channel 5 in the form of a slit, in which wind motors 5 with an annular fairing 7 are installed (Fig. 2). At the inlet and outlet of the channel 5, movable flaps 8 and 9 are made, pivotally fixed at points 10 and 11, with the possibility of opening and closing the channel. The fusel 1 is connected by a cable cable 12 to a ground container 13, inside of which are located the control cabin 14, winch 15, power plant 16 and electrical equipment 17.

High-altitude wind power installation works as follows. In the presence of a sufficiently strong wind U 10 m / s under the action of a lifting aerodynamic force when flowing around an air stream (wind) of wing 2 in configuration II (flaps 8 and E are closed, flaps 4 are released, see Fig. 2), the glider rises from

land (H-0) to a given height Nrasch. 0.3 - 1.0 km. on which it is held with a cable-cable 12. After lifting, the inlet and outlet leaves 8 and 9 open (configuration I, Fig. 2) and the air flow passing through channel 5 drives the wind motors 6. Such modular wind motors have several advantages compared to traditional wind turbines. They are relatively small in size, have a low noise and vibration, and due to the presence of a large number of annular fairings, they provide a high coefficient of utilization of wind energy. The use of a package of such wind motors in a high-altitude wind power installation increases the efficiency of using the wind of the entire installation C (see certificate for utility model N 12195 of 05.31.99). Electricity from wind turbines b is transmitted via cable 12 to the ground in a ground container 13, the glider is lowered to the ground using a winch 15, driven by a power plant 16,

The considered installation, after appropriate refinement, can be transformed into a vertical take-off and landing airplane, while maintaining its main purpose as a wind power installation. For this, the ground container must be equipped with lift-propulsion engines and a device for suspending the container from the glider (Fig. 3). As a result, the glider is transformed into an aircraft, which can perform vertical take-off, horizontal flight with flaps and flaps retracted (wing configuration III. Fig. 2), and also vertical landing in a new place of its primary use as a VVEN. Thus, the proposed high-altitude wind power installation acquires an additional valuable quality - mobility.

Justification of the technical results.

. The proposed wind power installation provides, in comparison with the prototype, higher values of the coefficient of utilization of wind energy. since the wind motors used in it are installed inside the ring of the fairings, which exclude the adverse interaction of vortices running from the ends of the blades. According to daily estimates, the increase in power will be about 15%.

2, The proposed installation provides the required characteristics on the main work solves. As evidence of neem, the calculation is given for the following initial data and assumptions:

1) on the ground at a wind speed of m / s;

2) at the operational for WWEU height Nrasch. wind speed m / s:

3) horizontal flight speed m / s:

4) operating height Nrasch. and the flight altitude of Npne exceeds thousands of meters, so a change in air density at altitude can be neglected.

5) The weight of the GK container is approximately equal to the weight of the glider & pl., I.e.

Gn Bol + GK -.

Since the lifting force of the wing Y - Su y pU $ cr ($ cr. - area

wing) is equal to the weight of the aircraft, then for launch, hovering and horizontal flight modes (see Fig. 2 the configuration of the wing I, 1 and III, and the corresponding indices n and p) we have:

YO Un - | - Pack

or Suo 4 Song 8 Soup (1:

The resulting ratio shows that in the conditions of start

1

it is necessary to provide 4 times greater value of the coefficient Su, and in flight 2 times less value of the coefficient Su than during operation (hovering).

In FIG. Figure 4 shows the experimental values of the coefficient of lift Sy depending on the angle of attack of the wing cX for three wing configurations corresponding to the three operating modes of the installation.

It can be seen that correlation (1) can be ensured by appropriate setting of the angles of attack for the wind turbine operating modes and wing configurations under consideration. These modes are shown in the shown dependences of Fig. 4 with light dots and correspond to the values, b; , 4 and, 2. In FIG. 5 for the considered wing configurations are given the dependencies

the coefficient of lifting force Su from the coefficient of resistance Cx

y .- / 1 (X - resistance force). Here me for comparison

pV dotted plotted for the prototype. Light dots

correspond to the operating modes of the utility model. It is seen that the value of the drag coefficient for a horizontal flight Cxp - 0.14 is an order of magnitude smaller than in the modes of lifting and hovering of the VVEN. Thus, in horizontal flight, a sufficiently high aerodynamic quality of the wing K Su / Cx 5 10 is ensured.

Author: Haskin L.Ya

Claims (2)

1. High-altitude wind power installation in the form of a glider with a fuselage, a wing with flaps, on which wind motors are mounted, and a tail unit, containing a cable-cable connecting the glider with a ground container, in which a control system is located, characterized in that its wingspan made in the form of a through gap, a longitudinal channel, across which wind motors are located in one row, each of which is installed inside the annular cowl, and hinged sashes are installed at the channel entrance and exit Strongly opening and closing the channel. 2. A high-altitude wind power installation according to claim 1, characterized in that the ground container is configured to suspend it from the glider, while lift-propulsion engines for vertical take-off and landing and horizontal flight are mounted on it.