Resumo:
This work presents a practical implementation of a Series Active Power Filter
for Voltage Sags and Voltage Harmonics compensation. Aspects concerning equipment
development and testing are also discussed. It is shown how a 13.8kV bus can be
compensated, even using 220V low cost IGBTs. Problems of the proposed topology are
shown as well their solutions.
A contribution to the area, related to algorithms development for Active Power
Filters, is also given. It is described a noise-tolerant algorithm, based on the traditional
id-iq method. It is explained why traditional techniques are sensitive to noise and shows
where the vulnerability is located. Simulation results are presented to compare the
proposed method against the traditional. Experimental results are also shown.
