All about mini wind turbines

Wind generators are no longer exotic - now they are used and regarded as the best opportunity to save money. In the article, we will consider the popular models of mini-wind generators for the home, features of their design and principle of operation.

Even a mini-wind generator easily converts all the energy that the wind carries with it. The successful use of these installations has already proven itself due to the fact that they can be used both in private houses, dachas and country buildings, as well as in industries and large factories.

Another feature of the wind generator is that it power directly depends on the size of the circle that its blades form... If its diameter is doubled, then, while maintaining the same wind speed, the electricity that the generator will produce will be 4 times more.

The design and principle of operation of old windmills have confidently migrated to their modern successors - wind power generators.

Nowadays, windmills for generating electricity are designed in much the same way, only wind energy makes the rotor spin.

Let's take a closer look at how the wind is converted into electricity.

1. The primary shaft with a gearbox begins to rotate from the force of the wind, which pushes the blades and makes them rotate. Then the torque is transmitted to the rotor equipped with magnets. Thanks to this sequence of actions, an alternating current is generated in the stator ring.
2. To generate this amount of electricity, batteries are needed. In order to charge in a safe mode, a rectifier is needed that avoids voltage surges and prolongs the life of the batteries.
3. To create a voltage of 220 V that we are used to, the current is fed from the batteries to the inverter, and then to the end consumers. In order for the windmill to always catch the strongest wind, a tail is installed, which unfolds the blades in the wind. All kinds of sensors allow modern models to have systems for braking, folding and retracting the blades from wind blows.

Different types of windmills they are classified by the number of blades, by the material from which these blades are made, by the pitch of the propeller and by a number of other criteria. Regardless of how the axis of rotation of the generator is located, the principle of its operation remains the same for any species... But basically they are divided according to the choice of the location of the axis or shaft.

• Horizontal view. This is when the surface of the earth is parallel to the axis of rotation of the generator.

• Vertical view. In this type of wind turbine, the rotating shaft is located perpendicular to the surface of the earth, and the blades are located around it.

Component of a propeller or propeller modern wind generators can consist of a different number of blades.It is already a well-established statement that propellers with up to three blades generate a large amount of current only in strong winds, while multi-blade wind turbines can be content with small air currents.

The Russian market is distinguished by a large assortment of wind generators. Before choosing, it is worth comparing the characteristics of the presented models and their options for use. The variety of devices represents a solid range, which includes both small wind turbines for the home and products for industrial use of larger sizes.

• Wind generators Condor Home. Windmills are designed for home use, power 0.5-5 kW. These stations are designed for use at low temperatures, and also produce energy in light gusts of wind. They serve as both the main and auxiliary source of electricity on the site.

• Small power plants Falcon Euro. Most often they are used in conjunction with solar panels or other energy sources in case of a significant distance from power lines. The line of models is represented by technological wind generators, mainly with vertical shafts, with a capacity of 1-15 kW.

• Sokol Air Vertical generators. Small wind turbines are capable of providing electricity to both small homes and medium-sized industrial buildings. These power plants are produced with a capacity of 0.5-15 kW.

• Wind turbines Energy Wind. These wind turbines have proven themselves remarkably as an excellent option for supplying electricity to residential buildings, cottages and residential buildings. There are both single-blade and three-blade models with different power - 1-10 kW.

• Windmills Altek EB. The segment of country houses and summer cottages was conquered by these horizontal shaft wind turbines. Rated power from 1 to 10 kW. Perfect for solving problems of supplying electricity to summer cottages.

To choose a wind farm, you need to decide on some points that will influence the decision. All calculations and similar calculations require a lot of attention: you need to collect and process important information.

1. It is necessary to calculate the maximum and minimum amount of electricity that will be enough to comfortably supply the facility.
2. Study wind indicators at different times of the year, identify periods of calm and understand what batteries are needed when the energy from a windmill needs to be replaced with something else.
3. Consider primarily the climatic and geographical characteristics of the region. In the event that there are severe frosts, the wind generator will be unprofitable.
4. Study the market well, compare the generators that are suitable for you from all manufacturers. And do not forget about such an indicator as the noise during the operation of the wind generator.

A complete transition to such power plants for residential buildings at a significant distance from the power line will not completely solve the problem. But maybe an excellent alternative and a way out in certain situations, and sometimes the only way to provide electricity to your site. In order for the choice to be as justified as possible, each characteristic should be considered - from the size, noise level, battery capacity to the installation method, the wind speed required for operation and the amount of electricity generated.

For more information on the wind turbine, see the next video.