Abstract:
In this paper, a three-phase-in three-phase-out matrix converter (MC) is modeled and its
working principles are analyzed. A simple model of the power circuit is proposed,
which has a small filter at input side of converter to remove distortion of the input
current around the switching frequency. The control signals of the power switches are
produced using the optimum amplitude-direct transfer function approach (DTFA). The
modulation strategy of the converter is explained mathematically in a clear form. The
simulation results obtained from the model at various operating conditions are
presented. These results prove effectiveness of the proposed matrix converter model
with a unity input power factor. Consequently, the designed PSIM model can be
confidently used in the construction stage of the matrix converter.