Control of Dynamic Voltage Restorer Using Novel Fast Two Vector Phase-Locked Loops Regulator

A fast two-vector Phase-locked loops (PLL) control has been proposed to the phase and frequency of grid voltage using 48-pulse switching. The novel controller senses shift as a deviation by load locked positive sequence. was designed track angle kept within satisfying rang at all time. PI- obtain desired performance PLL. PLL voltage. test results shows that new design can response sequence between -1.75p.u 1.75p.u. With in-phase compensation. simulated PSCAD/EMTD software package.