Implementation of SVPWM based on hysteresis control strategy applied on autonomous parallel active filter

Abstract

This paper presents a study on the harmonic depollution of the electric power network as well as the compensation of reactive power by an autonomous three-phase active filter at parallel structure. The presentation of the system of filtering starts initially with the presentation of the modeling of the whole of the system network, parallel active filter and polluting load. In second place, the principle of identification of the harmonic currents by the method of the instantaneous real and imaginary powers is developed, followed by the presentation of the SPACE VECTOR PULSES WIDTH MODULATION BASED ON HYSTRERESIS applied to the inverter of the active filter. A strategy which makes it possible to control the inverter of the filter to generate the harmonic currents required with the optimization of the number of commutations of the semiconductors used. The following part is devoted to the presentation of regulation system of the terminal condenser voltage of the autonomous active filter and in the last are presented the digital simulation and experimental results