| Abstract |
In this paper, a static series compensator for voltage sag mitigation is completed with a voltage
active filtering function for further power quality improvement. The control system developed here
performs isolation of voltage harmonics in several rotating coordinate systems, thus being able to
cancel (or reduce) only selected harmonics, if desired. Moreover, it compensates for the effect of the
converter output filter, which is frequency-dependent. Simulated results confirm the capability of the
device to cancel symmetrical and unsymmetrical harmonics. Moreover, it is shown by using actual
voltage sag recordings that the addition of the active filtering feature does not affect the speed of
response during transients. |
