My dear friend, I don't know if you are asking about large-scale horizontal axis wind turbines. When it comes to large-scale wind turbines on the market today, they can be roughly divided into two categories. is the gearbox increasing the speed of the transmission chain belt, the generator is a double-fed asynchronous generator, called a double-fed unit. Another type of transmission chain does not have a speed-increasing gearbox, and the generator is mainly a permanent magnet generator, called a permanent magnet direct drive wind turbine.
The power converter you mentioned in the generator part should be the frequency converter connected to the generator. For a fixed wind speed, the generator power will not change when the wind wheel rotates at a certain speed. In order to allow the connection of the generator to the network, (network connection conditions: the phase amplitude and frequency of the alternating current generated by the generator are the same as those of the network). The frequency converter adopts AC-DC-AC, PWM technology, which converts the unstable frequency alternating current output from the generator side into direct current, and then converts the direct current into alternating current with the same frequency as the grid. I don't know if the answer is what you want. If you have questions about wind turbines, keep asking.