A novel approach towards passive filter placement

Optimal filter design considering the system uncertain behavior has been a topic of research for a long time. Due to the lower cost, passive filters are still considered the most common solution for harmonic distortion problems. This paper presents a heuristic methodology for the placement and sizing of passive filters through ranking solutions based on the standard quality index THD (Total Harmonic Distortion). The developed method was implemented and applied to a simplified test system. The results showed that it is possible to mitigate harmonic distortion using a distributed approach during the filter selection. Additionally, since the method is mainly based in a heurist approach, it avoids the complexity associated with of use of advanced mathematical tools and artificial intelligence techniques. The analyses contemplate the condition with background distortion.