Comprehensive Design and Experimental Verification of Shunt Active Power Filter

Harmonic pollution imposed by non-linear loads has become one of the main power quality challenges. In addition, reactive power absorption related to non-linear loads may result in serious power quality issues like voltage drop or voltage instability. Among different passive and active power filters (APFs), shunt active power filter (SAPF) is used a lot since it can compensate both complete harmonic and reactive components as well as high flexibility without any resonance. However, harmonic detection, hardware, and control design play vital role in the performance of the SAPF. From hardware point of view, design of the DC-link capacitor and series inductor are two main challenges. In this paper, a comprehensive design procedure is presented to design the suitable passive elements. In addition, high performance control design is also considered. Several simulation and experimental results are provided to verify the proper design and controller performance.