CH714046A1 - Wind turbine with oscillating wing. - Google Patents

Abstract

The «rocking» wing (1, 12) is connected to the work mast (4) via the wing mast (2) and via a bearing with a horizontal plane of rotation (3). This is connected via a linear bearing (5) on the foundation mast (7) with the foundation plate (8) of the wind turbine. Furthermore, the work mast (4) via a spring (6) with the foundation plate (8) is connected. The "rocking" wing performs a torsional vibration, which is excited or damped with an electromagnetic pulse generator (15, 16, 17, 18) to adapt the performance of the system to the requirements. When the wing is rocking, the angle of attack is changed periodically, from lift to downforce and back. By the up and down of the work mast (4) experiences in connection with the spring (6) a supply of vibrational energy. The vibration of the working mast (4) is damped by the current generator (9, 10) which consists of at least one coil (10) and at least one magnet (9) which moves up and down in the coil. This generates electricity. The orientation against the wind takes place by means of one or more rigid wind vanes (11).

Description

description

Inventor:

David Jan Schlesinger,

Ctra. El Lomito le, ES-35431 Firgas-Casablanca de Gran Canaria, Spain

Technical field:

Wind turbine: F03D

State of the art:

[0003] Wind turbines with a rotor are predominantly used on a horizontal axis of rotation for generating electricity from wind energy. The plane of rotation is aligned against the wind.

The horizontal wind turbines generate large deadly traps for flying animals, especially bats, due to the high rotational speed.

There are also wind turbines with a vertical axis of rotation of the rotor, the plane of rotation of which is perpendicular to the wind direction and which therefore need no alignment.

However, the efficiency is so low that vertical wind turbines are only used in a few special cases.

In addition, two completely new types of wind turbines without a rotor have recently been developed. One uses air vortices, the other a proton transport through water particles.

In addition, the inventor has applied for a patent for a wind turbine based on sound waves, deposited in Switzerland under 00 969/17.

Presentation of the invention:

The wind turbine with an oscillating wing (Fig. 1) uses the upward and downward force of wings with a corresponding angle of attack against the wind.

In contrast to wind turbines with fast rotating rotors with a horizontal axis, there is no danger to flying animals.

In contrast to wind turbines with a vertical axis, the wing area is better used, but the wing must be aligned against the wind.

In addition, the wind turbine with an oscillating wing can be built very inexpensively, does not need a gear and the wing can largely consist of textile material, so that relatively large wing areas can be created with low weight.

This wind turbine has stationary and mobile applications and provides usable electrical energy even with little wind.

[0013] It is scalable and several “seesaw wings” can be attached one above the other and / or one behind the other.

The wind turbine has two vibrating elements, which must have the same natural frequency.

One swinging element is the "wing rocker" (1, 12), which allows the angle of attack of the wing to swing against the wind between a maximum of 45 ° and a minimum of -45 °.

In this vibrating element an electromagnetic pulse generator (15, 16, 17, 18) is installed, so that the torsional vibration of the wing rocker can be excited or damped.

The rocking wing (1, 12) is connected via the wing mast (2, 19) and a bearing with a horizontal rotating plane (3) to the work mast (4). This is connected to the foundation plate (8) of the wind turbine via a linear bearing (5) on the foundation mast (7).

Furthermore, the work mast (4) is connected via a working spring (6) to the foundation plate (8) and forms the second oscillating element.

In addition, the work mast (4) is connected to a power generation unit (9, 10).

The power generation unit consists of a magnet (9) which moves back and forth within a coil (10).

The design determines the natural frequency of the vibrating elements.

If there is sufficient wind, the wing rocker is set in a torsional vibration by the pulse generator, so that the angle of attack to the wind changes and this pushes the work mast up and down.

CH 714 046 A1 In contrast to conventional wind power plants, the wind power plant with an oscillating blade generates electricity at a constant frequency (namely the natural frequency of the vibrating elements).

[0024] The higher the wind force, the greater the amplitude - with the frequency remaining the same!

The amplitude of the generated voltage can be regulated by an electronic control of the amplitude of the wing rocker, so that the wind turbine remains usable even in high winds.

You can mount several wing rockers behind and / or one above the other, all of which are vibrated synchronously by the same current pulse and drive the same work mast.

List of drawings:

[0027]

Page 1:

Fig. 1:

Orthogonal view. Wind comes from the right.

Page 2:

Fig. 2:

Detail. "Wing rocker".

Implementation of the invention:

The wing (1, 12) consists of a thin plate or a frame with nylon fabric stretched between them. A joint (14) connects the wing (12) to the wing mast (19). The wing mast is rigid and is connected to the work mast (4) via the bearing with a horizontal rotating plane (3).

This joint (14) is such that an axis fixed to the wing mast (19) is connected via a spiral spring (13) to the wing (12).

There are two such joints, which are attached with the same strength and in opposite directions, so that the wing (12) can rock with respect to the wing mast (19), thus creating a (desired) torsional vibration.

You can also install a simple hinge and use springs of various types (coil springs, band springs, torsion springs ...) to achieve a torsional vibration of the wing.

The electromagnetic pulse generator (15, 16, 17, 18) consists of a coil (16) and a soft iron core (17), which a magnet (15) on a wing lever attached to the wing (18) opposite in the rest position stands.

When the coil (16) receives a current surge that develops a magnetic field that is the same polarity as the magnet (15), the magnet (15) is repelled and the torsional vibration is initiated. The deflection of the wing (amplitude) can be increased or kept constant by further electrical impulses with the natural frequency of the luffing wing.

Likewise, the torsional vibration of the luffing sash can be strongly damped in the event of a shutdown by an attractive magnetic field.

The rocking wing (1, 12) is thus connected to the work mast (4) via the wing mast (2, 19) and further via a bearing with a horizontal rotating plane (3).

The work mast is connected via a linear bearing (5) on the foundation mast (7) to the foundation plate (8) of the wind turbine.

Furthermore, the work mast (4) is connected to the foundation plate (8) via a working spring (6) and forms the second oscillating element.

[0035] In addition, the work mast (4) is connected to at least one power generation unit (9, 10).

The power generation unit consists of a magnet (9) which moves back and forth within a coil (10).

A rigid wind vane (11) is attached to the wing mast so that the wing always remains optimally directed into the wind.

The camp with horizontal rotary plane (3) must either have brushes and sliding contacts or conduct the electrical pulse to the coil of the pulse generator (16) via induction coils. Such bearings are used in wind turbines with a horizontal rotor axis and are not a novelty.

The control electronics also correspond to the state of the art, no new development is required. The electronics measure the induced voltage in the coil of the pulse generator, which is caused by the movement of the deflection lever (18) and the magnet (15).

CH 714 046 A1 As soon as the electronics determine that the magnet has passed the 0 ° position, a current surge is sent to the pulse generator, which either dampens the torsional vibration of the wing rocker, keeps it the same or increases it, depending on the desired amplitude size.

Claims (10)

claims 1. Wind turbine, characterized in that at least one oscillating wing is used to generate electricity. 2. Wind turbine according to claim 1, further characterized in that the wing oscillates vertically (moves up and down). 3. Wind power plant according to claim 2, further characterized in that at least two oscillating elements here: luffing wing (Fig. 2) and work mast (4) - are coordinated. 4. Wind power plant according to claim 3, further characterized in that at least one oscillating element - here: luffing wing (Fig. 2) - is excited or damped with an electromagnetic pulse generator (15, 16, 17, 18). 5. Wind turbine according to claim 4, further characterized in that a plurality of wing masts (2, 19) with luffing wings (Fig. 2) one above the other and / or one behind the other on the same work mast (4) are attached. 6. Wind turbine according to claim 1, 2, 3, 4 or 5, further characterized in that the wing (1, 12) consists largely of textile material (e.g. nylon). 7. Wind turbine according to claim 1, 2, 3, 4 or 5, further characterized in that the wing (1, 12) consists partly of solar cells. 8. Wind power plant according to claim 1, 2, 3, 4, 5, 6 or 7, further characterized in that a servo motor is used to excite the work mast (4) and to shift the frequency. 9. Wind power plant according to claim 1, 2, 3, 4, 5, 6, 7 or 8, further characterized in that a small horizontal wind turbine for generating the energy necessary for starting is mounted. 10. Wind power plant according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, further characterized in that a piston pump for liquids and / or gases is connected instead of a power generation unit. CH 714 046 A1