Matrix converter modulation minimizing switching losses and including the 6 rotating vectors of the space vector representation

This paper presents an innovative Low Losses Modulation of the Matrix Converter. Its principle is to minimize the cumulated switched voltage in each cell by increasing and decreasing progressively the output potential of each matrix cell. This modulation can be applied to all conversion matrices previously proposed for the matrix converter modulation and can be easily implemented with a triangular carrier based modulator adapted for matrix converter cells. The proposed modulation involves the use of all vectors present in the matrix converter space vector approach, including the 6 rotating vectors. Simulations verify the losses decreasing, but also reveal a significant reduction of the output voltages THD, and a very slightly increasing of the input currents THD.