Abstract--This paper proposes 3 types of new direct space
vector modulation methods for three-phase to three-phase
matrix converters. The space vector modulation method
allows a direct understanding of switching patterns and
their characteristics from the viewpoint of analysis and
control. Output voltage harmonics and switching losses can
be reduced across the entire voltage region by making use of
the direct AC/AC conversion approach. The switching count
can be reduced even further by fully utilizing the output
current detection value. The conventional virtual indirect
conversion approach is first described and then the selection
method of space vectors is explained along with the duty
calculation technique in direct space vector modulation.
Finally, the validity of the proposed method is proven from
simulation and analysis results.