Diseño, simulación e implementación de un generador de armónicos trifásico utilizando control vectorial

Abstract

The present document presents the design, simulation and implementation of a three-phase harmonic generator synchronized with the electric network using vector control theory. The developed equipment allows to generate signals of voltage of up to 220 V for the first, third, fifth or seventh harmonic with a maximum delivered power of 1.2 KW. In addition the equipment is able to handle the offset of the signal generated. The constituent elements of the project are: an interface developed in Labview, a SBRIO 9606 card, trip circuit, conditioning circuit of the network signals, power supplies, dc bus that includes the automatic capacitor loading and unloading circuit Bus, three-phase inverter type bridge and voltage measurement circuit in the load. The card senses the three voltage signals of the network, these signals are processed through the Clark and Park transforms of the vector control theory to obtain a triangular signal of synchronization (Phase Locked Loop). This triangular signal is manipulated to To obtain the three modulating sinusoidal signals with the characteristics set from the interface, that when being compared with a carrier of 10.5 KHz, the SPWM modulation is obtained.