SK8902Y1 - Cross wind multirotor turbine - Google Patents

Abstract

The cross wind multirotor turbine for capturing and converting wind energy for rotary motion by a multi-rotor system has a fan (2) with a beam (1), which is pivotally mounted on a pole (10) rotatable on a rod (11) in front of the leading edge of the fan (2). It further comprises a gutter-shaped flap (3) behind the trailing edge, in which a multi-rotor turbine (8) is located, terminated at the edges by the generators (9), is reinforced by the reinforcements (12) which are clamped in the lower part of the pole (10).

Description

Technical field

The technical solution concerns transverse wind multi-rotor turbines, the purpose of which is efficiency and reduced weight of wind energy systems.

Prior art

Wind multi-rotor turbines are currently being tested as models or prototypes, mainly on branched poles with parallel positioned axes. A double turbine with counter-rotating rotors on a common column is also tested. The solution called superturbine tested in the USA contains a set of rotors on one axis, which has a slight tendency against the ground to reduce mutual shielding. Tests of these solutions have shown weight and cost savings on turbine blades and a more advantageous gear ratio at higher speeds of multi-rotor turbines. On the contrary, the towers and columns of the mentioned solutions are more complicated and demanding for production, transport and assembly.

The essence of the technical solution

The essence of the technical solution of the transverse wind multi-rotor turbine is the wing clamped by a beam on a column, which is rotatable on the lower rod. The wing contains a flap behind the trailing edge, which has the shape of a gutter in which a multi-rotor turbine is located, on the axis of which there are generators on each edge of the flap.

The wing is reinforced with lugs, which are clamped in the lower part of the column. The reinforcements are flexible or mechanically adjustable in length to change the angle of attack of the sash. The resultant of buoyancy and resistance forces is thus adjustable according to the wind force.

The load moment of the forces is also adjustable by a weight that slides on an inclined slide in front of the column. It is connected by a rope to the winches and balanced by a vertical weight in the axis of the column. The position of the weight, and thus the counter-moment of wind forces, is regulated by a hoist, which can take various forms, for example as an arm terminated by an aerodynamic stabilizer or a winch servomotor in cooperation with a column bending sensor.

The control elements specify the required counterweight of the column and foundations to almost zero moment load of the column and foundations.

Overview of figures in the drawings

In FIG. 1 is a side view of a schematic illustration of a technical solution for the case of a system settling on the seabed, the dashed line of the profile is shown as a variant.

In FIG. 2 is a top view with the wing flap truncated at the edges for a direct view of the multi-rotor turbine.

Examples of embodiments

The transverse wind multi-rotor turbine mounted directly at the bottom of the sea or lake is mounted on the rod 11 by a bearing, protrudes above the surface and carries a beam 1 with a wing 2 pivotable in a pin with a horizontal axis. The sash 2 is partially balanced by the mass in the front part of the beam 1. Behind the trailing edge of the sash 2 and the gap, there is a flap 3 in the shape of a gutter, the rear half of which is tiltable in strong winds. Inside the trough are located two halves of a multi-rotor turbine, the axes of which are terminated at each edge by generators 9 without mechanical transmission. The velocity of the air flowing into the trough creates a pressure that distributes and accelerates the flow to the sides and compensates for the velocity loss from the previous turbine in the gaps between the turbines. The flow rate and small diameter cause sufficient speed for little or no gear ratio. The angle of attack of the wing 2 is adjusted according to the water depth, so that the direction of the buoyancy and resistance force is as close as possible to the bearing of the rod 11. The angle of attack is given by setting the reinforcements 12 to the force for rated power. When it is exceeded, the reinforcements 12 are stretched elastically or in a twist motor. the rear part of the gutter is tilted and the wing reduces the resistance to a minimum, thus creating a sufficient counter-moment against the wind. The excessively high columns contain control weights 5 so as to position the vector sum of aerodynamic and weight forces in the plane of the bottom in each mode. The ratio of the weight component of the weight 5 to the vertical weight of the vertical weight corresponds to the average of the ratios of the winches 4, so that their control requires minimal servo control responsive responses to the surface tension sensors of the column 10.

S K 8902 Υ1

Another embodiment is a transverse wind multi-rotor turbine for placement in a freezing environment or on mountain tops. The operation is identical to the previous example, the materials used are specific. The sash 2 is composed of a built-in carcass and a membrane sheet made of a heat-resistant material with a low heat capacity, for example foam polyester in combination with polycarbonate. Humid air on non-condensing surfaces5 is. In particularly difficult conditions, it is possible to equip the reinforcements 12 with a vibrating motor for corrugating the tarpaulin and removing de-icing, or it is possible to use special coatings developed at present with the wing 2 being thicker with reinforcements 12 and less robust. Wind energy systems equipped in this way will enable wind heating, which will make a greater contribution to carbon neutrality, as the Nordic territories are particularly sensitive to climate change and at the same time particularly demanding on the burning of fossil fuels. Installation without a permanent solid foundation is environmentally friendly.

Another embodiment is a microconversion for baseless portable and folding systems. The function as before is achieved after connecting the tubes of the column and the wing frame and unfolding the sail.

Just kill the bar 11 in the ground or spread out a small stand.

Claims (2)

CLAIMS FOR PROTECTION Transverse wind multirotor turbine for capturing and converting wind energy for rotary motion by a multirotor system, characterized in that the wing (2) with a beam (1) which is pivotally mounted on a column (10) in front of the 5 leading edge of the wing (2) rotatable on the rod (11), comprises behind the trailing edge a flap (3) in the shape of a trough, in which there is a multi-rotor turbine (8) terminated at the edges by generators (9), reinforced by lugs (12) Transverse wind multi-rotor turbine according to Claim 1, characterized in that the lugs (12) are adjustable in length by their flexibility or extension. Transverse wind multi-rotor turbine according to claim 1, characterized in that the column (10) comprises balancing by a weight (5) on an inclined slide connected to the winches (4) and a vertical weight (6) in contact with the hoist (7).