Dynamic Model Simulations using Real World Measurements in a Wind Power Generator

In the wind energy sector, one of the most widely used powertrain configurations is the hub-gearbox-doubly fed asynchronous generator. To keep the generator synchronized and connected to the grid, the work performed by the frequency converter and the pitch control system is of utmost importance. Together, they achieve the maximum possible torque—within certain safety parameters—for the available wind resource. This publication presents a simulated pitch control option using actual turbine measurements. The numerical research shows the necessity for nonlinear controllers by showing the linear local uncontrollability of the linearized version.