A fast and robust reference current generation algorithm for three-phase shunt active power filter

The identification of the reference currents constitutes an important part control active power filter. This requires accurate estimation frequency, phase, and proper extraction load current harmonics. makes modeling more difficult requests a rigorous selection techniques to be used. For sake simplicity, direct method is motivated by need for simplicity flexibility than existing such as instantaneous theory diphase method. However, this robust phase-locked loop extract unity voltages controller estimate magnitude source current. To end, paper proposes hybrid (HPLL) good option mainly because 1) it achieves zero phase error under frequency drifts, 2) Fast dynamic response, 3) totally block DC offset, 4) From point view, type 1 system which results in high stability margin. best authors’ knowledge, HPLL has not been used filter yet. Furthermore, neural PI regulator Simulation show efficiency proposed technique illustrate all its interesting features. comparison, compared other advanced techniques.