6Yamamoto M and Moto_yoshi O. Active and Reactive Power Control for Doubly-fed Wound Rotor Induction Generator [J]. IEEE Transanctions on power electronics, 1991, 6(4):624-629.
7Pena R, Clare J C, Asher G M. Doubly fed induction generator using back -to-back PWM converters and its application to variable-speed wind-energy generation” [J]. IEE Proc-electr Power appl, 1996, 143(3): 231-241.
8Hopfensperger B, Atkinson D J, Latin R A. Stator flux-oriented control of a doubly-fed induction machine with and without position encoder[J]. IEEE Proc Power Appl, 2000, 147(4): 241-250.
