Dynamic behavior with comparative study of the parallel active filter commande

Abstract

The aim of this article relates to the comparison between two strategies for identifying harmonic currents, namely the instantaneous active and reactive power method and the instantaneous currents method, faced with a dynamic non-linear load. This work particularly concerns the study by digital simulation of a parallel active filter intended to filter the harmonic currents generated by a non-linear load and to compensate for reactive energy. Our study focuses on the identification of harmonics and inverter control. The step of identifying harmonic currents is fundamental in the filtering process.

The validation of the two proposed methods was carried out by numerical simulation. Several simulation cases accompanied by a temporal analysis and a spectral analysis were carried out from the model of the network assembly, parallel active filter and pollutant load. The simulation results for the two proposed methods show that the parallel active filter effectively extrct the harmonics from the electrical network, generated by the non-linear load.