Active Power Filters are power electronic devices of wide range of power rating.They are used to eliminate the harmonic content of the current or voltage at harmonically problematic loads. Basically Active Power Filters are composed of semiconductor switches, output filter and dc link voltage or current sink. There are different kinds of topologies for variety of purposes. The main idea underlying Active Filters and the basic principles are explained in the presentation below. Also, some photos of a working system is shared at the content of this presentation.
Presentation on Active Power Filters
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