Abstract:
Multilevel inverters are noteworthy in high
voltage industrial applications now a day. This study is
an experimental analysis of a reduced switch
asymmetrical multilevel topology when applied with
different modulation schemes. Sinusoidal Pulse width
modulation (SPWM) and Space vector pulse width
modulation (SVPWM) Techniques are employed to
control the MLI. The space Vector algorithm applied
here is a general one which can applied to any N- level
inverters without much complexity as compared with
conventional space vector techniques. The Total
Harmonic Distortion (THD) of the MLI output is
evaluated for different modulation techniques. The
topology can generate 7 level output voltage which is
simulated in MATLAB/simulink tool and verified with
experimental test setup results. The closeness of
simulation value of %THD with the experimental test
setup %THD verifies the effectiveness space vector
algorithm over SPWM technique.
