A comparison of two active resonance dampers

In this paper two active power filters used for the resonance damping in power distribution lines are compared. Both filters effectively damp the harmonic resonance but the filter designed by the authors avoids the calculation of the characteristic impedance of the distribution line, so proving an higher robustness. Moreover the numerical results obtained with the Simplorer simulation software clearly demonstrate that the designed filter is more efficient since it is faster, as it requires only 3 cycles of the fundamental frequency to damp the resonance, and it decreases deeper the power losses along the power distribution line.