Generator windings, 3-phase generators use 3-phase windings (that is, 3 sets of windings), and single-phase generators use single-phase windings. ?
This is related to the power system. The power generated to the regional power grid is 3-phase, because the power grid is 3-phase. For example, the electricity used in factories is mostly single-phase, because many times the factory's electricity is taken from one of three phases of 380v. ?
Roughly speaking, large generators are sent to the power grid and are three-phase, while small ones are mostly single-phase for internal use in factories. The number of phases the generator is designed to be used in is mainly related to the application.
A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. Broadly speaking, wind energy is also solar energy, so it can also be said that a wind turbine is a thermal energy utilization generator that uses the sun as the heat source and the atmosphere as the working medium.