This article presents a voltage-modulated direct power control (VM-DPC) with an additional parallel compensator for the doubly fed induction generator under unbalanced grid conditions. The proposed method not only guarantees satisfying steady-state performance but provides also regulating property of negative-sequence output currents through designed compensator. It can provide symmetrical stat...

In this paper, a linearized time-invariant voltage-sensorless direct power control (DPC) with balanced and unbalanced dc-link voltage is proposed in three-phase Vienna rectifier. To achieve sensorless voltage, the architecture consists of three sub-architectures, including 1) linear control; 2) virtual flux, input active reactive estimators; 3) zero crossing distortion capacitor unbalance compe...