What is the generator output frequency and grid frequency required for grid-operated wind turbines?

For grid-connected wind turbines, the generator output frequency must be consistent with the grid frequency.

There are two methods:

(1) Constant speed/constant frequency system. Wind turbines that adopt stall regulation or hybrid regulation mainly use asynchronous induction generators when operating at constant speed.

(2) Variable speed/constant frequency system. A “power electronic frequency converter” is used to convert variable frequency electrical energy from the generator into constant frequency electrical energy.