PLL Structures System for Distributed Generation Systems Under Grid Fault Conditions

Abstract

This project presents a fuzzy logic controller based PLL's for dissects the synchronization ability of the power system. The fuzzy logic controller incorporated with the decoupled double synchronous reference (PLL), the dual second order generalized integrator PLL, and the three-phase enhanced PLL, intended to work under grid fault conditions. In grid fault conditions we used existing methods without fuzzy logic controller PLL’s by using these methods we improve the ability of the grid systems. By using these controllers we synchronized the system voltage magnitude and angles. In proposed method we use the fuzzy logic controller based PLL’s for synchronized the voltage magnitude and angles. Compared to existing method in proposed method we achieve fast speed response for different grid faults