Harmonic Current Compensation Based on Three-phase Shunt Active Filter using Model Predictive Current Control

Abstract

The increase use of non-linear devices introduces harmonics into electrical networks which cause distortion of current and voltage signals and damage the quality of electrical power. However, in electrical systems, the elimination of harmonics is a great importance. This paper presents an approach to remove harmonics, to reduce the total harmonic distortion and to improve the power factor in power distribution networks using shunt active power filters based on a robust controls as a model predictive control. In our study, we tested the conventional theory (p-q theory) to detect the harmonics present in the electrical system. In addition, for the DC link voltage control, the conventional regulator PI is used. The robustness of this proposed command is tested for three different non-linear load cases, also before and after filtering. The simulation results show that this control technique satisfies all standards with minimum current total Harmonic distortion.