Dynamic behavior with comparative study of the parallel active filter commande

M., Mohammedi; Bahi, Tahar

Algerian Journal of Renewable Energy and Sustainable Development
Volume 3, Numéro 2, Pages 141-149
2021-12-15

Dynamic Behavior With Comparative Study Of The Parallel Active Filter Commande

Authors : M. Mohammedi . Bahi Tahar .

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.Two identification techniques have been studied and validated namely, the method of instantaneous active and reactive powers "pq", it is an identification method based on the detection of the source current "dq"and the method of identification of the powers. instantaneous real and imaginary was chosen to generate the reference currents. The latter offers the advantage of choosing the disturbance to be compensated with precision, speed and ease of implantation. The modeling and simulation of the network assembly, pollutant load and parallel active filter were presented. 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 extractthe harmonics from the electrical network,generated by the non-linear load