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This study proposes a novel control scheme for doubly-fed induction generator (DFIG) in DC-grid where its stator and rotor are connected to DC-bus via insulated-gate bipolar transistor (IGBT)-based converters, namely rotor side converter and stator side converter (SSC). Maximum slip frequency strategy is proposed to determine stator frequency and improve stator voltage at low-rotor speed, which could...
Power frequency transformer is necessary when doubly fed induction generator (DFIG) connects with high-voltage ac grid. However power frequency transformer possesses many undesirable properties such as bulky size, environmental concerns. Additionally, the wind farms need reactive power compensation, such as static synchronous compensator (STATCOM). In this paper, the DFIG converter system with integrated...
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