Predictive Torque Control without Weighting Factors for Doubly-Fed Induction Generators in Wind Turbine Applications

This paper presents a predictive torque control (PTC) method for doubly-fed induction generators (DFIGs) without weighting factors. The proposed control technique is based on calculating the d-axis reference current from the reference torque. Furthermore, the q-axis reference current is employed to regulate the reactive power exchange between the stator of the DFIG and the grid. Then, the reference voltage vector (VV) is directly computed from the reference current vector using the deadbeat principle. Finally, according to the location of this reference VV, only three evaluations of the cost function are required. The cost function includes only the error between the reference VV and the candidates ones, which eliminates the need for weighting factors. Experimental results using a dSPACE DS1007 real-time platform and a 10kW DFIG are presented to verify the feasibility of the proposed control method.     «

This paper presents a predictive torque control (PTC) method for doubly-fed induction generators (DFIGs) without weighting factors. The proposed control technique is based on calculating the d-axis reference current from the reference torque. Furthermore, the q-axis reference current is employed to regulate the reactive power exchange between the stator of the DFIG and the grid. Then, the reference voltage vector (VV) is directly computed from the reference current vector using the deadbeat prin...     »