Wind turbines are generally composed of wind turbines, generators (including devices), regulators (tails), towers, speed-limiting safety mechanisms, and energy storage devices. The working principle of the wind turbine is relatively simple. The wind wheel rotates under the action of the wind, which converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft. The generator rotates and generates electricity driven by the wind wheel shaft. The wind wheel is a wind collecting device, and its function is to convert the kinetic energy of the flowing air into the mechanical energy of the wind wheel rotation. Generally, the rotor of a wind turbine consists of 2 or 3 blades. In wind turbines, three types of generators have been used, namely DC generators, synchronous alternators and asynchronous alternators. The function of the direction regulator in the wind turbine is to make the rotor of the wind turbine face the wind direction at any time, so as to obtain the wind energy to the maximum extent. Generally, almost all wind turbines use the tail to control the windward direction of the wind rotor. The material of the rear wing is usually made of galvanized sheet steel. The speed limit safety mechanism is used to ensure the safe operation of wind turbines. The setting of the speed-limiting safety mechanism can keep the rotational speed of the wind turbine rotor basically unchanged within a certain wind speed range. The tower is the support mechanism of the wind turbine, and the slightly larger wind turbine tower generally adopts a truss structure composed of angle steel or round steel. The output power of the wind turbine is related to the wind speed. Since the wind speed in nature is extremely unstable, the output power of the wind turbine is also extremely unstable. The electrical energy generated by wind turbines generally cannot be directly used in electrical appliances, and must be stored first. The batteries used in wind turbines are mostly lead-acid batteries.
Post time: Sep-17-2022
