The presented linearized model of doubly-fed induction generator is suitable to the related researches of doubly-fed variable speed wind turbines.

Variable-speed variable-frequency(VSVF), a new typed operational mode for the induction generator based wind power generation system is proposed based on the fractional frequency power transmission.

To the most potential variable-speed constant-frequency doubly fed induction generator, the device of power electronics converter used to control rotate speed is analyzed.