may section
DESCRIPTION
power pointTRANSCRIPT
SIMULINK Model Examples
SIMULINK MODELS
Full wave Rectifier
DC Machine Model
Square Wave inverter
1) FULL WAVE RECTIFIER( AC TO DC)
The circuit we want to build will have the following simulation circuit
We will build it in 3 ways :
i. Without Transformer
ii. With Transformer
iii. Using Rectifier Bridge Block
I. WITHOUT TRANSFORMER
Continuous
powergui
v+-
Voltage MeasurementVph
Diode
Diode1Diode2
Diode3
Scope
+
R
v+-
V Scope2
RMS
RMS
RMS
RMS1
22
Display
22
Display1
I. WITHOUT TRANSFORMER
I. WITHOUT TRANSFORMER OUTPUT
Input voltage FWR output
I. WITHOUT TRANSFORMER OUTPUT (WITH CAPACITOR)
Continuous
powergui
v+-
Voltage MeasurementVph
Diode
Diode1Diode2
Diode3
Scope
+
R
v+-
V Scope2
RMS
RMS
RMS
RMS1
22
Display
30.5
Display1
+
C=220uF
I. WITHOUT TRANSFORMER OUTPUT (WITH CAPACITOR)
Input voltage FWR output with filter
II. WITH TRANSFORMER
Same as before but instead of taking AC from direct AC voltage source , we will use AC source input to step down transformer then the o/p of the transformer will be input to the FWR.
II. WITH TRANSFORMER
Continuous
powergui
v+-
Voltage Measurement
1 2
+ +
step down Transformer220/22
Vph
Diode
Diode1Diode2
Diode3
Scope
v+-
Voltage Measurement1
v+-
Voltage Measurement2
Scope2
RMS
RMS1
29.78
Display1
RMS
RMS2
22
Display2
+
R
+
C=220uF
II. WITH TRANSFORMER (OUTPUT ON SCOPE)
Voltage input before and after transformer Voltage after FWR
III. FWR USING RECTIFIER BRIDGE
A
B
+
-
Universal Bridge
AC Voltage Sourcev+
-
Voltage Measurement Scope
Continuous
powergui
III. FWR USING RECTIFIER BRIDGE (OUTPUT)
DC MACHINE MODEL
Continuous
powergui
m
A+
F+
A-
F-
dc
TL
DC Machine
DC Voltage Source
Scope
DC Voltage Source1
Step
2
Constant
g
12
Ideal Switch
60/(2*pi)
to convert ti RPM
<Field current if (A)><Electrical torque Te (n m)>
<Armature current ia (A)>
<Speed wm (rad/s)>
DC MACHINE MODEL
DC MACHINE MODEL OUTPUT
INVERTER – SQUARE WAVE INVERTER
Circuit Diagram
Q1 & Q2 works together
Q3 & Q 4 works together
OUTPUT
INVERTER – SQUARE WAVE INVERTER
Continuous
powergui
v+-
Voltage Measurement1
Scope1
PulseGenerator2
PulseGenerator1
+
LOAD
g CE
IGBT3
g CE
IGBT2
g CE
IGBT1
g CE
IGBT
DC Voltage Source1
INVERTER – SQUARE WAVE INVERTER
INVERTER – SQUARE WAVE INVERTER
THANKS