Sensorless Rotor Position Estimation of Doubly Fed Induction Generator Based on Backstepping Technique

This article proposes a speed observer algorithm for the sensorless control of a doubly fed induction generator based on classical adaptive backstepping technique. The sensorless control is shown using classic stator field oriented control, which is use to active and reactive power control. Performance of the proposed algorithm of a speed observer is validated by simulation and experimental results obtained using a small-rating generator and bidirectional voltage source converter. The stability analysis of the presented solution with regard to observer gains changes is also considered.