Feedback Linearization Control for DC-based DFIG Systems

摘要

This paper presents a feedback linearization strategy (FLS) for DC-based doubly-fed induction generator (DFIG) system. The stator and rotor of DFIG are connected to DC grid directly by two voltage source converters, namely, a rotor side converter (RSC) and a stator side converter (SSC). Compared with a traditional DFIG system, the DC-based DFIG system has more system inputs and coupling, which increases the difficulty of vector control strategy. Accordingly, FLS is proposed to make DFIG operate at the reference points. Finally, simulation study is carried out and the results demonstrate the validation of FLS.