RU2725125C1 - Wind-driven plant for generation of electricity - Google Patents

Abstract

FIELD: power engineering.SUBSTANCE: invention relates to power engineering, namely to renewable sources of electric power. Wind plant for generation of electricity consists of axes of attachment of blades, blades, support posts, devices for air flow removal from blades operating in a position closed for wind attack, and fixed on support posts, connecting spline axles, sacral connection, profiled wheels with teeth, chain gear, reduction gear, generator.EFFECT: technical result is enabling operation at low wind speeds.1 cl, 2 dwg

Description

Technical field

The invention, a wind installation for generating electricity, relates to energy and can be used as a source of electrical energy.

State of the art

The technical result solved by the invention is provided by the unused energy potential of the wind.

A wind farm is several wind turbines (wind power plants) assembled in one or several places and united into a single network. Large wind farms can consist of 100 or more wind generators. Sometimes wind farms are called "wind farms" (from the English. Wind farm).

Wind speed increases with height. Therefore, wind farms are built on tops of hills or hills, and generators are installed on towers 30-60 meters high. Items that can affect the wind are taken into account: trees, large buildings, etc. During the construction of wind farms, the environmental impact of wind generators is taken into account. Laws passed in the UK, Germany, the Netherlands and Denmark limit the noise level from a running wind power plant to 45 dB during the day and to 35 dB at night. The minimum distance from the installation to residential buildings is 300 m. Modern wind farms stop working during the seasonal flight of birds.

Known land-based wind farm, the most common type of wind farms currently. Wind generators are installed on hills or hills. An industrial wind generator is being built on a prepared site in 7-10 days. Obtaining regulatory approvals for the construction of a wind farm may take a year or more. Construction requires a road to the construction site, heavy lifting equipment with a boom extension of more than 50 meters, since the gondolas are installed at a height of about 50 meters. The power plant is connected by cable to the transmitting electric network. The largest wind farm currently is the Alta Power Station, located in California, USA. Full power - 1550 MW.

Known coastal wind farm. Coastal wind farms are being built at a small distance from the coast of the sea or ocean. On the coast with a daily periodicity a breeze blows, which is caused by uneven heating of the land surface and the reservoir. The daytime, or sea breeze, moves from the water surface to land, and the night, or coastal, moves from the cooled coast to the reservoir.

Known offshore wind farm. Offshore wind farms are being built at sea: 10-60 kilometers from the coast. Offshore wind farms have several advantages:

1) they are practically not visible from the shore;

2) they do not occupy the land;

3) they have greater efficiency due to regular sea winds.

Offshore power plants are built on sections of the sea with shallow depth. The towers of wind turbines are installed on foundations from piles hammered to a depth of 30 meters. Electricity is transmitted to the earth via submarine cables. Offshore power plants are more expensive to build than their ground-based counterparts. Generators require higher towers and more massive foundations. Salt seawater can lead to corrosion of metal structures. Self-elevating vessels are used for the construction and maintenance of such power plants.

A floating wind farm is known.

Norwegian company StatoilHydro has developed floating wind generators for deep sea stations. StatoilHydro built a demo version with a capacity of 2.3 MW in September 2009. A turbine called Hywind weighs 5,300 tons at a height of 65 meters. It is located 10 kilometers from the island of Karma, not far from the southwestern coast of Norway. The steel tower of this wind generator goes under water to a depth of 100 meters. The tower rises 65 meters above the water. The rotor diameter is 82.4 m. To stabilize the tower of the wind generator and immerse it at a given depth, ballast (gravel and stones) is placed in its lower part. At the same time, three cables with anchors fixed to the bottom hold the tower from drift. Electricity is transmitted ashore via an underwater cable.

Famous soaring wind farm. Soaring wind turbines are located high above the ground to use a stronger and more stable wind. The concept was developed in the 1930s in the USSR by engineer Egorov.

Famous mountain wind farm. The first in the former Soviet Union mountain wind farm with a capacity of 1.5 MW was launched at the Kordaysky pass in the Zhambyl region of Kazakhstan in 2011. The height of the site is 1200 meters above sea level. The average annual wind speed is 5.9 m / s. In 2014, the number of wind turbines (Vista International)) with a capacity of 1.0 MW each at the Kordai Wind Farm was increased to 9 units with a design capacity of 21 MW. In the future, it is planned to put into operation Zhanatasskaya (400 MW) and Shokparskaya (200 MW) wind power plants. In February 2015, in the Eastern Carpathians near the city of Stary Sambir, the first in Western Ukraine mountain wind farm “Stary Sambir 1” with a capacity of 13.2 MW was put into operation. Total capacity 79.2 MW. It is represented by Danish VESTAS V-112 wind turbines with a rated capacity of 6.6 MW. The height of the site is 500-600 m above sea level, the average annual wind speed is 6.3 m / s.

The disadvantages of these technical solutions are the following factors:

The difficulty in servicing due to the autonomy of each wind generator, the noise of generators from a height is especially distributed in the area, the lack of mechanical interconnection of the wind generators in series with each other does not imply the conversion of weak winds into electricity, since each wind generator is already under load provided by an individual gear and generator, the inability to adjust the wind generator in the direction of the wind.

Source: https: //ru.wikipedia.jrg/wiki/Wind_Power

Essence

The technical result solved by the invention is provided by the unused energy potential of the wind.

To solve this technical problem, a wind installation for generating electricity is proposed. A wind installation for generating electricity, including the axis of fastening of the blades, blades, support racks, gearbox, generator, while characterized in that the installation is equipped with devices for removing air flow from the blades, working in a position closed for wind attack, and mounted on support racks , connecting spline axes, which, through the sacral connection, connect the axis of attachment of the blades in series with each other, and the shaped wheels with teeth, through a chain transmission, transmit torque through the gearbox to the generator of the installation.

The main technical features and advantages of the proposed technical solution are described in the presented preferred embodiment.

The use of such facilities, according to the author’s engineering plan, is evident directly in the polar climate of the Earth.

The scope of protection of the invention is not limited to the described example, but includes various embodiments in accordance with the general concept. In particular, the application of the transmission of traction from the blade device to the next due to the spline axis and sacral connections, and devices that take on the pressure of the air flow to divert it from the blades, working in a position closed to a wind attack, in order to obtain electricity.

Brief Description of the Drawings

The invention is illustrated by drawings. In FIG. 1-2, a general view and arrangement of a wind turbine for generating electricity is shown.

In the figure 1 are indicated: the axis of attachment of the blades 1, the blade 2, the connecting spline axis 3, the sacral connection 4, the support struts 5, the device for diverting the air flow from the blades operating in position 6 closed for wind attacks, shaped wheels with teeth 7, chain gear 8, generator 9, gear 10.

At the same time, for the convenience of reading the drawing, the author decides to designate a device for diverting the air flow from the blades operating in a position closed to a wind attack, only on the leftmost blade unit; on two other blade blocks, the author decides to designate the blades in the state of their extreme upper and lower positions during rotation.

In the figure 2 are indicated: the axis of attachment of the blades 1, the blade 2, the support strut 5, the device for diverting the air flow from the blades operating in position 6 closed for wind attack, shaped wheels with teeth 7, a chain gear 8, a generator 9, a gearbox 10.

The figure 3 marked: the axis of attachment of the blades 1, the connecting spline axis 3, the sacral connection 4.

The blades 2 perceive the air flow and impart rotation to the axis of attachment of the blades 1, the torque is outputted to the profiled wheel with teeth 7, which, by means of a chain transmission 8, is coupled to a profiled wheel with teeth 7 of the gearbox 10 connected to the generator 9. The relationship between the blade units is carried out by connecting spline axles 3, which, through the sacral connection 4, connect the axis of attachment of the blades 1 in series with each other. Devices for diverting the air flow from the blades operating in position 6 closed to the wind attack are fixed on the supporting posts 5, they carry out the function of diverting the air flow from the blades 2 working in the closed position for the wind attack.

The implementation of the invention

A wind plant for generating electricity works in one mode.

The blades 2 perceive the air flow and impart rotation to the axis of attachment of the blades 1, the torque is outputted to the profiled wheel with teeth 7, which, by means of a chain transmission 8, is coupled to a profiled wheel with teeth 7 of the gearbox 10 connected to the generator 9. The relationship between the blade units is carried out by connecting spline axles 3, which, through the sacral connection 4, connect the axis of attachment of the blades 1 in series with each other. Devices for diverting the air flow from the blades operating in position 6 closed to the wind attack are fixed on the supporting posts 5, they carry out the function of diverting the air flow from the blades 2 working in the closed position for the wind attack.

Claims (1)

A wind installation for generating electricity, including the axis of attachment of the blades, blades, support racks, gearbox, generator, characterized in that the installation is equipped with devices for diverting the air flow from the blades, working in a closed position for a wind attack and mounted on the supporting racks, connecting spline axes which, through the sacral connection, connect the axis of attachment of the blades in series with each other, and the profiled wheels with teeth transmit the torque through the gearbox to the generator of the installation through a chain drive.

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