Predictive current control of a doubly fed inductor generator (DFIG) for fast power reference tracking

This paper presents a power control strategy for the doubly fed induction machine. Calculated from the active and reactive power references in the stator, the rotor current references are then controlled through a predictive control algorithm, which calculates rotor voltages required for high-bandwidth current tracking. Using a two-voltage level three-phase inverter, pulse width modulation is used to generate voltage pulses within one period of a constant frequency carrier signal. The use of predictive control in conjunction with PWM allows for high-bandwidth current control at fixed switching frequency.