This post provides a uniform system of power quality control strategy. This control strategy is in 3-phase and 3-wire system. The device combines a UPQC, shunt active filter with an active series filters in the back to back configuration. UPQC designed for simultaneous compensation of current and voltage harmonics. This paper focus on simple control strategy with voltage sag-swell/harmonic/flicker compensation, fuzzy controller benefits over PI controller. Simulation results based on SIMPOWERSYSTEM by MATLAB / Simulink are presented, and verified the effectiveness of the proposed control technology.

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This paper shows the analysis of DQ method for power conditioning with two different controller PI and Fuzzy. The Dq method is more easy to implement in comparison with Instantaneous PQ theory in terms of calculation and complexity. It take care of harmonics, sag/swell and unbalanced system. All the simulation results are based on Simpowersystem by Matlab/ Simulink are presented and effectively verified the proposed control strategy. Keywords-Active power filter (APF), Series power filter (SPF), Unified power quality conditioner (UPQC), Point of common coupling (PCC), Simpowersystem (SPS), Harmonic, Total harmonic distortion (THD), Power Quality.