Matrix Converters (MC) are compact voltage
source converters capable of providing variable voltage and
variable frequency at the output. Compared with traditional
topologies the MC does not require an intermediate dc link
and provides sinusoidal output waveform with minimum
higher order harmonics. To yield higher rms O/P voltage, it
is proposed to use Space Vector Modulation (SVM)
algorithm for the voltage control of converter. The proposed
modulation technique is derived from Indirect Transfer
Approach (ITF).The time arc information of the supply
voltages and the desired output frequency are used to
identify the sectors of the SVM technique, to generate the
pulses of desired duration. The digital implementation of
Space Vector Modulated (SVM) switching scheme for a three
phase to three phase MC is done through Digital Signal
Processor (DSP) TMS 320C 2407A. To verify the validity of
the algorithm a 15 KVA MC is built. SVM pulses are
generated and given to the appropriate MC switches through
a decoder circuit and the experimental results are presented.
The proposed modulation algorithm can be used for v/f
control of Induction Motor