Multitechnique software for DC/AC three-phase converters

Abstract

This paper presents a system which works as a pulse generation stage to drive three-phase DC/AC converters, also named inverters. This pulse generation stage is multiple because it is based on the most important control techniques to drive inverters, such as PWM techniques, and was developed on a personal computer. The system has two main operation modes: visualization or simulation and real or emulation. The first allows one to select a technique from the menu and see pulses generated to turn-on and turn-off the power semiconductor of the inverter, phase voltage waveforms, line voltages waveforms and spectrum of harmonic content of voltages waveforms according to data input entered previously. The second mode works as the first one but now the pulses generated are used to drive a DC/AC converter connected to a computer through an interface. Results are presented for both modes.<>