Active corrector of the power factor in a three-phase network with impedance

This study aims to analyse the working of a three-phase convertor controlled by the method of pulse width modulation with sinusoidal references. A simulation aided by Matlab software is completed with consideration of the state representation of each working sequence. The values of the various parameters of the system is optimized on the basis of this simulation. It is then shown that this type of convertor can produce reactive power in order to restore the power factor to unity while continuing to operate as a voltage source. A closed-loop model control strategy is proposed and validated by simulation on Simulink. This control uses forward compensation and state return of the system linearized about the working point. The proposed forward compensation is based on a novel approach and leads to decoupling of the control on the two inputs to the system.