Grid-connection of variable-speed and constant-frequency wind turbine For a variable-speed constant-frequency controlled wind power generator using a synchronous generator, the generator armature winding is connected to the power grid through a converter. When the wind speed changes, in order to achieve the maximum wind energy capture, the electromagnetic torque of the synchronous generator needs to […]

Grid-connected conditions of synchronous wind turbines The circuit of a synchronous wind generator set running in parallel with the power grid is shown in Figure 1. In the figure, the stator winding of the synchronous generator is connected to the power grid through a circuit breaker, and the rotor field winding is controlled by an […]