Técnica de controle e sincronismo aplicada a conversor NPC utilizando eliminação seletiva de harmônicas

Abstract

This work has the propose of using the Selective Harmonic Elimination (SHE) modulation technique applied to a three-phase converter connected to the power grid to operate at high power. Through a dq coordinates transformation of the converter variables, a PI control and synchronization with the power grid systems will be proposed. The control of the injected current will be done through a DSP which will send command signals to a FPGA that will produce the PWM signals in the three-phase converter switches. The converter will be simulated through Hardware In The Loop Simulation to validate the developed control technique.