Current regulation active harmonic distortion filter

Abstract

Current regulation active harmonic distortion filter

Vikhorev N.N., Chivenkov A.I., Aleshin D.A.

Incoming article date: 30.01.2019

The article provides one of the possible ways to increase the efficiency of a device for suppressing harmonic distortions of a current of a power line by introducing a difference signal into the feedback loop proportional to the deviation of the voltage of the power line from a reference value. A simulation model of a power system with a device for suppressing harmonic current distortions has been developed, which makes it possible to evaluate the effectiveness of the active filter for various parameters of the feedback loop. The oscillograms of currents in power lines are shown when a harmonic distortion device is connected. The results of the harmonic analysis of the voltage of the power line, showing a decrease in the level of voltage distortion when the active filter is connected to the power line, are presented.

Keywords: current harmonic distortion, power line, simulation, active filter, Matlab / Simulink, nonlinear load, feedback, dynamic properties