Np. Quang et al., DOUBLY-FED INDUCTION MACHINE AS GENERATOR - CONTROL ALGORITHMS WITH DECOUPLING OF TORQUE AND POWER-FACTOR, Electrical engineering, 80(5), 1997, pp. 325-335
Presently the doubly-fed induction machine (DFIM) is increasingly used
in windpower plants due to a number of advantages. An important crite
rion for the design of the control concept is to maintain the decoupli
ng of torque and power factor in both steady state and dynamic mode. T
he paper presents a novel control concept fulfilling this requirement
to a very high degree. Furthermore, the design of the appropriate cont
rol algorithms is shown in coherent mathematical form.