Matlab simpowersystem

1. 11
Lecture Series – 12
SimPowerSystems
Shameer Koya

2. SimPowerSystems Introduction
 Simulink library blocks dedicated to modeling, simulation
and analysis of
 electrical circuits,
 electrical machines and drives,
 static converters and
 power energy systems
 SimPowerSystems library can be used with standard
Simulink block diagrams to construct various connecting
elements of a dynamic system, and their effects on the
entire power system.
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3. SimPowerSystems Library Uses
 Models and simulate electrical and electronic circuits using
standard symbols such as resistor, coil, capacitor or diode,
thyristor, transistor etc.
 Provides blocks that shape different types of electrical
machines (MCC induction machine, synchronous machine),
static converters (rectifiers in bridge inverters);
 Provides blocks for modeling a full power energy system
(transport, distribution);
 Allows different methods of analysis of a system (electrical
circuit) and calculated power transfer
 Displays voltage and current and other parameters in
steady state
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4. SimPowerSystems library
 contains nine libraries of electrical and electronic
components (powerlib):
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5. Electrical Sources
 Different electrical sources – DC/ AC
5
A
B
C
Three-Phase Source
N
A
B
C
Three-Phase
Programmable
Voltage Source
DC Voltage Source
s
-
+
Controlled Voltage Source
s
-
+
Controlled Current Source
AC Voltage Source
AC Current Source

6. Electrical Elements
6
____ T r a n s f o r m e r s ________________________________________________________________________________________________________
____ C i r c u i t B r e a k e r s _________________________________ L i n e s _________________________________________________
____ E l e m e n t s _____________________________________________________________________________________________________________
1
Connection
Port
A
B
C
A
B
C
Three-Phase Fault
A
B
C
a
b
c
Three-Phase Breaker
A
B
C
Three-Phase
Series RLC Load
A
B
C
A
B
C
Three-Phase
Series RLC Branch
A
B
C
Three-Phase
Parallel RLC Load
A
B
C
A
B
C
Three-Phase
Parallel RLC Branch
A
B
C
A
B
C
Three-Phase
PI Section Line
A
B
C
A
B
C
Three-Phase
Mutual Inductance
Z1-Z0
A
B
C
Three-Phase
Harmonic Filter
m
A
B
C
Three-Phase
Dynamic Load
Surge Arrester
Series RLC LoadSeries RLC Branch
Pi Section Line
Parallel RLC LoadParallel RLC Branch
Neutral
node 10
Mutual Inductance
Ground
Distributed Parameters Line
c
1
2
Breaker

7. Elements ……
7
____ T r a n s f o r m e r s ________________________________________________________________________________________________________
____ C i r c u i t B r e a k e r s _________________________________ L i n e s _________________________________________________
1
Connection
Port
A+
B+
C+
A-
B-
C-
a3
b3
c3
Zigzag
Phase-Shifting Transformer
A1+
A1
B1+
B1
C1+
C1
A2+
A2
B2+
B2
C2+
C2
Three-Phase Transformer
12 Terminals
A
B
C
A
B
C
Three-Phase Fault
A
B
C
a
b
c
Three-Phase Breaker
A
B
C
a
b
c
Three-Phase
Transformer
(Two Windings)
A
B
C
a2
b2
c2
a3
b3
c3
Three-Phase
Transformer
(Three Windings)
A
B
C
A
B
C
Three-Phase
Series RLC Branch
A
B
C
A
B
C
Three-Phase
Parallel RLC Branch
A
B
C
A
B
C
Three-Phase
PI Section Line
Three-Phase
Mutual Inductance
Z1-Z0
A
B
C
Three-Phase
Harmonic Filter Surge Arrester
1
2
3
Saturable Transformer
Pi Section Line
Neutral
node 10
1+
1
+2
2
+3
3
+4
4
Multi-Winding
Transformer
1
2
3
Linear Transformer
Distributed Parameters Line
c
1
2
Breaker

8. Power Electronics
 SimPowerSystems library
provides a set of blocks dedicated
to the modeling of electronic
devices (diodes, thyristors and
transistors) and static converters
(rectifiers and inverters single
phase or three phase bridge)
called Power Electronics
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9. Machines
9
____ A s y n c h r o n o u s M a c h i n e s ___________________
____ M a c h i n e M e a s u r e m e n t s ___
____ P r i m e M o v e r s a n d R e g u l a t o r s _____
____ D C M a c h i n e s ___________________________ S y n c h r o n o u s M a c h i n e s ____________________
Pm
Vf_
m
A
B
C
Synchronous Machine
pu Standard
Pm
Vf_
m
A
B
C
Synchronous Machine
pu Fundamental
Pm
Vf_
m
A
B
C
Synchronous Machine
SI Fundamental
wref
Pref
wm
d_theta
dw_5-2
Tr5-2
gate
Pm
Steam Turbine
and Governor
Pm
E
m
A
B
C
SSM
Simplified Synchronous
Machine pu Units
Pm
E
m
A
B
C
SSM
Simplified Synchronous
Machine SI Units
Tm
m
A
B
C
Permanent Magnet
Synchronous Machine
dw Vstab
Multi-Band
Power System Stabilizer
m
is_qd
v s_qd
wm
Machines
Measurement
Demux
wref
Pref
we
Pe0
dw
Pm
gate
Hydraulic Turbine
and Governor
In Vstab
Generic
Power System Stabilizer
v ref
v d
v q
v stab
Vf
Excitation
System
TL m
A+
F+
A-
F-
dc
Discrete
DC Machine
TL m
A+
F+
A-
F-
dc
DC Machine
Tm m
A
B
C
a
b
c
Asynchronous Machine
pu Units
Tm m
A
B
C
a
b
c
Asynchronous Machine
SI Units

10. Measurements
10
____ E x t r a s __________________________
v
+
-
Voltage Measurement
Vabc
Iabc
A
B
C
a
b
c
Three-Phase
V-I Measurement
0
Multimeter
Z
Impedance Measurement
i
+
-
Current Measurement
Continuous Measurements
Discrete Measurements
____ Single-Phase Measurements _____________________________
____ Three-Phase Measurements _____________________________
____ Power Measurements __________________________________
dq0
sin_cos
abc
dq0_to_abc
Transformation
Vdq0
Idq0
PQ
dq0-based
Active & Reactive Power
abc
sin_cos
dq0
abc_to_dq0
Transformation
signalTHD
Total Harmonic
Distorsion
signal rms
RMS
In Mean
Mean Value
(linear)
In Mean
Mean Value
signal
magnitude
angle
Fourier
V
I
PQ
Active & Reactive
Power
Vabc
Iabc
PQ
3-phase
Instantaneous
Active & Reactive Power
abc
Mag
Phase
3-Phase
Sequence Analyzer

11. Discrete Control and Control blocks
 dedicated control blocks composed of both static converters and
various configurations of filters and discrete controllers:
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__________ Filters__________
_____________ Pulse Generators_____________
__Phase-Locked Loop (PLL) Systems _______
___________________________ Miscellaneous_____________________________
___Signal Generators____
Timer
alpha_deg
AB
BC
CA
Block
pulses
Synchronized
6-Pulse Generator
In
S
S/H
Sample & Hold
Signal(s)Pulses
PWM Generator
t
0.01 s
On/Off Delay
T
0.015 s
MonostableEdge Detector R
[S]
!Q
Q
Bistable
Vabc (pu)
Freq
wt
Sin_Cos
3-phase PLL
abc
3-phase
Programmable Source
Fo=200Hz
2nd-Order
Filter
1st-Order
Filter
V (pu)
Freq
wt
Sin_Cos
1-phase
PLL
alpha_deg
A
B
C
Block
PY
PD
Synchronized
12-Pulse Generator

12. Making of RLC Circuits
 RLC Video
12

13. RLC AC Response
13

14. Diode rectifier – Half wave
 Rectifier Video
14

15. 15

16. DC Motor model
16
powergui
Continuous
Scope
DC Voltage Source
DC Machine
TL m
A+
F+
A-
F-
dc

17. Thank You
That’s all
Wish you ‘All the best’
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