simulation of single phase inverter
Post on 10-Apr-2015
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DESCRIPTION
TRANSCRIPT
Simulation of
single-phase inverter
in SIMULINK
Melvin Koshy
11kvac@gmail.com
Different PWM techniques can be employed for inverters
Common PWM techniques are Triangular PWM and Sinusoidal PWM
Complete SIMULINK model
DESCRIPTION
Sa Sb Vao Vbo Active states
1 0
0 1
Inactive states
0 0 0 0
1 1 0 0
Modelling Equations
_
2 2
dc dcao a a
V VV S S
_
2 2
dc dcbo b b
V VV S S
ab ao boV V V
Inside “INVERTER” subsystem
Inside “sys” subsystem
Considering an R-L load, the model of load is as shown
Inside “Load” subsystem
Simulation Data
5 0.005974
100 dc
R L H
V V
SIMULATION RESULTS
(a) Triangular PWM
Plot of Vab
Plot of iab
(b) Sinusoidal PWM
Plot of Vab
Plot of iab
NB : All outputs are plotted with respect to time (in sec)
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