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In recent years there have been many strategies have been proposed for use of proportional plus resonant P-R controllers both in the stationary and in the synchronous reference frame that demonstrate grid-connected converter performance can be improved under non-ideal supply conditions such as supply asymmetry and supply voltage distortion. However, when employed in systems with high frequency variability...
This paper proposes a combined synchronization method for full scale converter of wind turbine (WT) aiming to ride trough balanced and unbalanced voltage dips due grid faults. A Kalman filter synchronization (KFS), capable extract the positive and negative sequence grid voltages, is designed to have a fast response to voltage disturbances. Then, a synchronous reference frame phase locked loop (SRF-PLL)...
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