Development of Less Complex Single - Phase Active Filter

Harmonic pollution has become a serious problem in recent years. Harmonics are introduced into power systems due to non-linear loads or system components presenting non-linear behavior. An active power filter is one method used to minimize the effects of the harmonic. However, active harmonic filter usually requires some complicated algorithm for implementation. This paper presents a new approach to design and develop an active harmonic filter which has less complexity compared to other conventional active harmonic filters. It can be implemented by injecting the inversion form of the harmonic into the main line, which results a lower value of harmonic content. In other words, the harmonic component needed by the non- Linear load is provided by the active filter rather than the ac source.

Keywords:

Harmonic Current , Active Filter , Non-Linear Load