Image description
The image shows four component parts that make up a wind turbine and its equipment that converts and distributes the electricity.
Thus, on the left is a wind turbine similar to a tower with the height of a block, rendered by an elongated rectangle, embossed and vertical, which has at the top three blades joined at a central point, in the form of a propeller, marked by three elongated, blank and thin circles.
The tower or pillar, is mounted vertically to the ground, with the help of which the turbine components are positioned at an optimal height for wind speed.
The rotor blades are fixed to the tower by the axis of the rotor, which connects the rotor to the generator, assembled through an outer shell called a nacelle, transmitting mechanical energy to the generator that converts it into electricity.
The rotor blades are rotated by the force of the wind, being set in motion on the principle of the electric motor, only in this case, the kinetic energy of the wind is transformed by the generator into electricity.
The turbine is connected to a wind turbine transformer, in the lower center, rendered as an embossed square, with the upper corners cut out.
The transformer can be installed in the nacelle or inside the tower and has the role of linking the wind turbine and the distribution grid, taking over the low output voltage from the generator and increasing it to a higher distribution voltage level, for transmission to the substation in the right.
The substation is shown in the right central side, in the form of an embossed square with the right side marked with a jagged line.
This, also called the intermediate power distribution station, takes over the high voltage distributed by the transformer and regulates its voltage, so that it is suitable for supply to consumers, through the electric pillar with its high voltage power line on the right.
On the right edge is an electricity pillar, rendered as two thickened vertical lines, joined together by three thin horizontal lines, representing the high voltage power lines.
General information
After the discovery of the utility of the electric current, interest in its generation methods increased. At first, electricity was only available in places where there were individual power generators. For this reason, it was necessary to create an electricity generation and distribution infrastructure to ensure the supply of electricity to a wider area. The infrastructure has been created and so we have electricity in almost all populated areas of the Earth. This infrastructure is called an electricity grid. The main components of the electricity grid are the power plants in which the current is produced, the transformer stations that adjust the voltage according to the needs of the consumers, and the cables through which all elements of the grid are interconnected. Also, through the cables, the current reaches the consumers.
Power plants are of many kinds, depending on the energy they use to produce electricity. Thus, we distinguish: thermal power plants, hydropower plants, wind power plants and nuclear power plants. All power plants have as their main component electric generators, which convert mechanical energy into electricity.
Wind force is an alternative energy resource. It can be converted into electricity using wind power plants. Wind turbines take wind energy and turn it into rotational motion, and rotational motion is transmitted to electric generators.
The main components of a wind turbine are: the blades and the rotor, respectively those which rotate at the action of the wind; the axis, the one that takes the rotational motion of the rotor and transmits it to the electric generators; electric generators, respectively those items that produce electricity.
As with photovoltaic panels, the energy generated can be stored in batteries, or it can be introduced into the national electricity grid. The only drawback of wind power plants is that they can only be operated in areas where winds are present most of the time.
Did you know that modern wind turbines automatically adjust their position depending on the direction of the wind? This technology is also used by photovoltaic parks, where panels are automatically positioned in the direction where sun exposure is higher. Through this process, natural energy losses are lower and electricity production is higher.
The world’s largest wind farm is located in the United States and houses over six hundred turbines.
Bibliography
- https://ro.wikipedia.org/wiki/Energie_eolian%C4%83#Top_%C8%9B%C4%83ri_energie_eolian%C4%83
- http://www.termo.utcluj.ro/regenerabile/6_4.pdf
- https://blog.romstal.ro/ce-sunt-turbinele-eoliene-si-cum-functioneaza/
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