| Abstract |
This paper presents a new modulation method for matrix converters based on the indirect modulation
model. During the switching period, the proposed modulation method uses a combination of only one
active vector and a zero vector in the inversion stage to achieve minimum stator flux error, while in
the rectification stage a single current vector is selected, according to the angle error of the input
current reference vector. This reduces the number of switching sequences in the switching period,
improving the accuracy of generating the output voltages, especially in the low modulation index
range. Supplementary, the direct control of the input current vector is implemented. The estimation of
the angle of the input current vector is done by applying the inverse transformation corresponding to
the applied active vector to the output currents. |
