Inaccurate phase-angle jump (PAJ) estimation of the grid voltage during faults is one major causes for poor fault ride-through (FRT) performance converters. To overcome this issue and make converter’s current controller robust, article proposes a hybrid synchronization transition technique. In concept, synchronous reference frame-based phase-locked loop (SRFPLL) method used normal operation swi...

Wind power generation is increasing rapidly in India and wind integration with the grid is considered as a promising source of energy, Double Fed Induction Generator (DFIG) being the most commonly used wind turbine generator, when integrated with the grid show challenges during grid faults. This paper focuses on the challenges faced by DFIG during the occurrence of voltage sags and the Low Volt...

With the continuously increasing penetration of networked microgrids (MGs) on local utility grid (UG), MGs face challenge to avoid system fault currents during low-voltage ride-through (LVRT). To solve this challenge, an active current limitation (AFCL) method is proposed with three parts: 1) a novel phase angle adjustment (PAA) strategy conducted relieve impact output current; 2) injection (CI...

This paper proposes a competent and effective scheme to enhance the ride-through capability of DFIGbased wind turbines under unbalanced voltage dip conditions. The proposed method is realized through joint use of the rotor-side converter control and a three-phase stator damping resistor (SDR) placed in series with the stator windings. By means of an asymmetrical SDR idea, during the unbalanced ...