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Based on the transient model of double-fed induction generator (DFIG) under synchronous rotating reference frame, the electromagnetic transient simulation system of DFIG is implemented under PSCAD/ EMTDC. This paper deliberates the dynamic responses of stator and rotor voltage and current, active and reactive power, electromagnetic torque, rotor speed and DC link voltage both during the grid voltage...
A novel control strategy is proposed in this paper since available sensorless speed control strategies of doubly fed induction generator (DFIG) usually fail around the synchronous speed or limited by the operation state (motor or generator). The new control strategy uses the stator voltage to estimate the rotor position and speed. This strategy works properly in the whole speed zone. The principle...
Decoupled control has been widely used in the DIFG (doubly fed induction generator) which needs the rotor position as well as the rotor speed for the control system. A lot of research has been done in the sensorless control field for the DFIG because of the disadvantages of the speed sensor. Three representative sensorless control strategies are considered in this paper and they are compared in terms...
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