SK1382011A3 - Rope windy-energy system - Google Patents

Abstract

Described is a columnless wind-energy system, intended to hardly foundable bases, to the sea surface, to difficult to access mountains with the possibility of system portability. The attached gyroplane acts as a buoyant body and also the function of a wind collector. Very low specific the weight of the gyroplane is achieved using stabilized propeller blades (2) with analogue adjustment angles by the centrifugal forces of the weights (1) on the axes (13) letters. Alternate winding and unwinding of gyroplan with pulling energy to the ground as well as accumulation the energy in the flywheel (5) increases the energy conversion efficiency, especially in the anti-twist mode speed and 8 times the power of the propeller is limited only to half by drawing the power per winch pull (7). Bezstípové design allows placement of eg. over dense vegetation, on the ridges and mountain tops, on ice floes on their own drive, on deserts into hybrid systems with solar complexes and the like.

Description

The invention relates to wind energy in higher layers of air flow, and in particular to hard-to-place locations with the possibility of transferring the system from temporarily located locations to other locations.

BACKGROUND OF THE INVENTION

The use of wind energy in higher layers is only in the experimental phase and focuses in particular on the placement of wind systems on aerostats of various shapes, which are anchored to the ground by means of a tow rope and the energy is transmitted from above by an electric cable. There are designs of aerodynamic systems in which the pressure drop energy under the wing and above the wing is transformed, or aerodynamic transversely moving surfaces tethered by a rope and utilizing the transmission of a rocking or circular movement of the rope to transfer energy to the ground. Aerostats are difficult to protect against adverse weather, aerodynamic lift bodies have inefficient energy transfer.

SUMMARY OF THE INVENTION

Improved energy conversion efficiency and simple ground transfer are solved by the invention of a multi-rotor gyroplane which incorporates a high-speed flywheel flywheel with propeller pitches provided with leading angle stabilizers at the blade ends and the blade root automatically adjusted to angles required by flow mode air. The angle "a" corresponds to the optimum angle of attack of the propeller blades at approximately zero wind speed relative to the propeller in the downstream motion, the angle "β" is the negative setting angle in the opposite direction of the gyroplane against the air flow. The angles are set for a predefined leaf lift ratio of about 2: 1 for greater buoyancy at concurrent gyroplane velocity with the surrounding wind. The gyroplane is connected by a rope to a winch, a flywheel and a generator. The rope contains a spring that stops the reel flywheel after winding the specified winding path and turns it in the opposite direction. After the rope has been unwound, the gyroplane is stopped, the rope is pulled by the rope and the rope is rotated 180 ° and the rope is wound at the same rotation of the winch with the flywheel. The gyroplane flywheel always has the same direction of rotation. It transmits the energy obtained by winding on the propeller thrust while unwinding.

The gyroplane may include an auxiliary motor connected directly to the gyroplane flywheel, which facilitates start and compensates for gyroplane flywheel fluctuations. During winding, the auxiliary battery is recharged, while the motor is unwound, the thrust together with the flywheel develops at the same winding speed. The regulation of collecting power to the collector / flashlight may be a response to the load, inertia forces or the position of the centrifugal weight arms at the leaf root.

Adjustment of the "a" adjusting angles for propeller pulling and unwinding and the "β" winding angle may be analogue to a mechanical mechanical weight system on the arms attached to the leaf axes, where the arms point backwards and above the rotation level of the axes greater than 45 ° from the rotational plane, thereby achieving the necessary reduction in the radii of the centrifugal force from R1 to R2 progressively and the buoyancy decreases by the required value by 30% to 50%. The winding consumes about 30-50% of the energy, giving the rest to the gyroplane flywheel. Due to the fact that in the opposite direction the wind speed is two times higher, the power of the propellers increases eight times, the power to the winch about 3 times (reduced by power consumption per thrust). The propellers utilize a larger cross-section of the kinetic energy of the flowing air. In parallel pull the power is unit. On average, the system utilizes about twice the air cross-section and the specific system performance will be higher than the basic cross-section 2x.

The very low weight of the system is due to the need for only a small motor / generator with a small diameter of numerous propellers, stabilizing the blade pitch angle also on the outer edges with a stabilizer so that the blades only bear the tensile load.

The ground power generator in conjunction with the fixed reel may be multi-pole and robust, or connected by freewheel in one direction of rotation and may be gears and contain its own flywheel.

The start of the gyroplane is carried out by auxiliary motors and, if necessary, by a reel drive. When the required height has been obtained, the stop spring is fixed and thus defines the amplitude of the system oscillations in the wind direction. After the rope has been fully unwound, the gyroplane vibrates automatically by its inertia winding along the length of the system.

Image overview

Fig. 1 shows a side view of a two-rotor gyroplane winch system.

Fig. IA is a detail of the leaf sections and the X závažiek centrifugal rotation radiuses R and R _2nd

Fig. 1B is a top view of one propeller with stabilizers 9, blade axles 13, and centrifugal obligations 1.

DETAILED DESCRIPTION OF THE INVENTION

Small wind power plant for a site with dense forest cover and low wind speed. Power of about 1 kW DC for batteries for a nominal wind speed of 5m / s requires, in a classic design, a rotor diameter of about 6m and a column height above 30m. The foundation and anchoring of such a column is inadequately needed and obtained power.

The rope wind-energy system with a cable length of about 80 m does not require a classical mast, it includes a winch 7 with a base plate and a basket for natural weights. The central diameter of the 6m gyroplane with four propellers 2 of 3m diameter starts from the auxiliary resting structure at the instigation of its own small meteorological station. The spring 8 has a free-flowing servo-clamp. The clamp is programmatically secured 10m before the full length of the rope 6 has been unwound. Subsequently, the winch is unwound completely and the flip-over clamping 12 of the cable 6 starts winding with the inertia energy of the flywheel 11. by priming the angle of attack increases and the centrifugal force of the weight drops in proportion to the radius of rotation R2. The auxiliary motor 4 generates current and charges the flashlight near it. After 10m winding, the energy of the flywheel 11 of the reel 11 weakens, the spring 8 hits the stop and the whole cycle is repeated continuously. An anti-clockwise movement with twice the relative velocity yielded an 8-fold power input of 2 winds, reduced by the inertia of the winch to about 3 times the unit power of the surfaces. A consecutive movement of 5 m / s and full revolutions of propellers with a 3 ° angle of attack produces unit power. Thus, the average cycle power utilizing a multiple cross-section of air is twice that of a unit of cross-section and will be 2 kW. The increased cross-section of the captured wind is due to the movement of the gyroplane, both in the direction of the rope 6 and also in the vertical direction on the rope 6, which is generated by varying buoyancy during winding and unwinding. It also switches transversely away from the directional stabilizer, which is also controlled by the servo 14. The system's gyroplane operates at a longitudinal amplitude of 10m and 10 to 20m above the trees in the wind range from 5 to 15 m / s. Beyond these conditions, a gyroplane landing on the auxiliary structure above the winch 7 is transmitted.

A similar operation is carried out by designing a system designed as a portable device in the mountains or other expedition areas, where anchoring in snow is sufficient and when using strong air currents a small device is sufficient as an acceptable power source. Larger or portable devices in sufficient numbers can create a park for various technological purposes, such as drilling, powering of glacier trolleys on the surface of which the park can be installed, or island operation of a hydrogen producing park that can be moved, especially if it is placed on water on stabilization and transfer vessels.

Another category is mountain systems, easy to install on ridge and mountain peaks with extreme wind intensity. Such a system can individually supply mountain huts with energy and installed in parks can generate significant energy resources in mountainous and island countries.

In desert areas where they are easy to install, they can create hybrid and complementary systems with solar complexes using common output devices to process DC inputs.

Claims (8)

A cable wind-power system which uses gyroplanes with rotary wings specifically designed to convert and capture wind energy, characterized in that at least one gyroplane comprises a flywheel (5) connected to a belt gear (3) by helicopters (3). 2) having stabilizers (9) of their rollers and automatic regulation of the angles of adjustment a and β depending on the air velocities, the gyroplane being connected by a cable (6) to the spring (8) by a sniper (7) comprising a stop (10) the spring (8), the winch flywheel (11) and the tilt (12) of the rope (6) to terminate it. 2. A wind power system according to claim 1, characterized in that it comprises an analogue adjuster of the adjustment angles a and β for the unwinding and winding modes, which consists of the weights (1) on the inclined arms on the leaf axes (13) where the arms they are directed rearward in the direction of rotation and above their level of rotation of the axles (13) with an angle greater than 45 ° from the plane of rotation. 3. The cable wind-power system according to claim 1, characterized in that the flywheel (5) is directly connected to the high-speed motor (4) in the unwinding mode, which is powered by the battery cells located on the gyroplane and simultaneously. recharging the flashlight in reverse gyroplan winding mode. Tió & k. a: 4. The rope wind power system according to item 1, characterized in that at least one gyroplane on the rope (6) comprises a servo (14) for changing the angle of adjustment of the γ gyroplane relative to the rope (6) and a directional stabilizer which can also be connected to servo (14) <I 'hl Rope wind-energy system according to claim 1, characterized in that the blades of the propellers comprise a stabilizer (9) at their radially outer end. * 2 6. The rope wind power system according to claim 1, characterized in that the electric generator in conjunction with the sniper has a fixed shaft coupling and the pole is designed for a lower return speed. 7. The rope wind power system according to claim 1, characterized in that the electric generator is connected to a freewheel winder for engagement in the direction of unwinding of the rope (6) from the winch (7) and comprises its own flywheel. Rope wind-energy system according to claim 1, characterized in that gyroplanes are attached to the rope (6) along the ropes (6) in a greater number to accommodate the shape of their abutment legs with the rope (6) having the opening handle for the hinge points, or the upper multi-flat part has separate winders for winding the connecting length of the rope (6) between each two gyroplanes, or the cable (6) has a spiral shape between each of the numerous gyroplanes