A wind turbine is a device that converts wind energy into electrical energy. It drives a generator to produce electricity through the rotation of a wind turbine. The working principle of wind turbine mainly includes three processes: wind energy conversion, mechanical energy conversion and electrical energy conversion.
1. Wind energy conversion
Wind is the result of atmospheric movement on Earth and has enormous energy. The conversion process of wind turbines using wind energy involves converting wind energy into kinetic energy on the wind wheel. When the wind blows through the rotor of the wind turbine, the rotor rotates due to the force of the wind.
2. Mechanical energy conversion
The rotation of the wind wheel will cause the rotor inside the generator to rotate. The rotor is made up of magnets and coils. When the rotor turns, the magnetic field also changes. According to Faraday's law of electromagnetic induction, changes in the magnetic field will induce an electromotive force in the coil. This electromotive force is transmitted to the generator output through the wire, forming an electric current.
3. Conversion of electrical energy
The current transmitted through the wire will then be converted into electrical energy via the transformer. Transformers convert low voltage current to high voltage current so that electrical energy can be delivered more efficiently. Ultimately, electrical energy is transmitted via transmission lines to users for their use.
Steps of wind turbine operation
1 Site selection
Site selection of wind turbines is very important. Generally speaking, you should choose an area with high and stable wind speeds to ensure that the wind turbine pcan continue to produce electricity. At the same time, it is also necessary to consider the surrounding environmental factors, such as the impact of terrain, buildings, etc. on the wind.
2. Installation Foundation
Once the site selection has been determined, the installation of the wind turbine foundation must be carried out. This includes work such as digging foundation pits and pouring concrete. The stability of the foundation is crucial to the normal operation of wind turbines.
3. Install the wind wheel and generator
After the foundation is installed, the wind wheel and generator must be installed on the foundation. Wind rotors generally consist of several blades that must be installed perpendicular to the wind direction to maximize the use of wind energy.
4. Connect the transmission lines
After the installation is completed, the wind turbine must bebe connected to transmission lines. This requires wiring and connection work. Ensuring the reliability and security of connections is essential to the transport of electrical energy.
5. Operation and monitoring
After the installation and connection are completed, the wind turbine can start operating. At the same time, operational monitoring is necessary to detect and resolve possible problems in a timely manner to ensure the normal operation of wind turbines.