DSP-Based Matrix Converter Operation Under Various Abnormal Conditions with Practicality

Abstract

The matrix converter connects the three phase power supply with the three phase load directly through a switching matrix composed of four-quadrant switches. The operation of matrix converter with unbalanced power supply has been analyzed. For this, a 230 V, 250 VA three phase to three phase matrix converter prototype is implemented using DSP based controller and tests have been carried out to evaluate and improve the stability of system under typical abnormal conditions. Digital storage oscilloscope & power quality analyzer are used for experimental observations.