A modular Simulink-based controlled three-phase switch mode inverter

The primary goal of this paper is to present the design and construction of a digital signal processor (DSP) controlled three-phase inverter based on Simulink and the Real Time Workshop Toolbox from MathWorks. Traditionally various switching schemes, such as pulse width modulation (PWM) and square wave switching, in addition to reduction of harmonics through power electronic switching, are studied in class. However, their tangible effects cannot be seen without simulation and/or laboratory experiments. The purpose of this inverter is to provide a modular educational platform with minimal setup time to study the operation of DC-AC converters. Access to the inverter is provided through a variety of measurement sensors for data acquisition purposes, which emphasizes hands-on laboratory experience. An actual detailed setup and experimental procedure is presented that outlines the platform's ease of use and accuracy.