The present chapter presents a control technique to deal with the control of doubly
fed induction generators under different voltage disturbances. Certain current reference values are chosen in the positive and negative sequences so that the torque
and theDCvoltage are kept stable during balanced and unbalanced conditions. Both
rotor-side and grid-side converters are considered, detailing the control scheme of
each converter while considering the effect of the crow-bar protection. The control
strategy is validated by means of simulations.
CitacióGomis-Bellmunt, O.; Junyent-Ferré, A. Control of doubly fed induction generators under balanced and unbalanced voltage conditions. A: "Handbook of renewable energy technology". World Scientific Publishing, 2011, p. 757-783.