A Novel Shunt Active Power Filter Under Condition of Unbalanced Voltage

Two methods for detecting harmonics and reactive currents: p-q theory and ip-iq theory, which are based on three-phase instantaneous reactive power theory, are presented. The model of shunt active power filter(APF), based on the two methods in MATLAB, is built. In the model, the root-mean-square (RM...

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Bibliographic Details
Published in2010 Asia-Pacific Power and Energy Engineering Conference pp. 1 - 4
Main Authors Ziqiang Xi, Zhanqiang Xin, Shiping Zhou, Wencong Huang, Lei Qi
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.03.2010
Subjects
Active filters
Voltage
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Summary:Two methods for detecting harmonics and reactive currents: p-q theory and ip-iq theory, which are based on three-phase instantaneous reactive power theory, are presented. The model of shunt active power filter(APF), based on the two methods in MATLAB, is built. In the model, the root-mean-square (RMS) part takes place of the low pass filter (LPF) part. But the two methods can't work properly when the three phase voltage does not balance. Then a new method has been proposed, and the result of simulation verifies that the method is correct.
ISBN:1424448123
9781424448128
ISSN:2157-4839
DOI:10.1109/APPEEC.2010.5449115