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Exploration of Co-Simulation using MATLAB®
Simpower System and Gas Turbine(GT) Simulator
Jitesh BajajEngineerSunil Unnikrishnan Senior EngineerFebruary 2016
GT
Simulator
Motivation
Gain insight of
complex multi-
physics system.
Ex ( electrical-
process)
Current practices are
independent
simulation platforms
GT Simulator-Matlab
co-simulation limits
complex models
Enabling maximum utilization of legacy library.
Stiff system with
different time delay
and time constants
GT Simulator– Matlab Co-simulation2
February 2016
Case Study- Electrical Simulation
3
February 2016
Enabler:
Step forward function ( pilot run)
GT Simulator
Mechanical power
from GT Simulator to
Simpower system
Speed and rotor
angle feedback from
Simpower system
Electrical Network
Synchronous machine
Exciter and load
system in Simpower
GT Simulator
Mechanical system
Auxiliaries
etc.
Modeling Electrical System in Simpower- Simscape
February 2016
4
Advantage
• Eases process of modeling physical systems• Build models that reflect structure of physical system• Leverage MATLAB to create reusable models.• Both phasor and time domain approaches are possible.
• Systems and Control Engineers can handle large electrical simulations.
Synchronous machine
Results and Discussion
50
60
70
80
90
100
110
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600G
T1
:Dw
att
GT
1:S
pe
ed
Time
GT1:Turbine % ShaftSpeed
GT1:DWATT
35
37
39
41
43
45
47
49
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
1:F
ue
l S
tro
ke
Re
fere
nc
e
G1
:Sp
ee
d
Time
GT1:Turbine % ShaftSpeed
GT1:Turbine FuelStroke Ref
1000
1050
1100
1150
1200
1250
1300
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
1: E
xh
au
st T
em
pe
ratu
re
GT
1:S
pe
ed
Time
GT1:Turbine %Shaft Speed
GT1:ExhaustTemperature
46
47
48
49
50
51
52
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
1: I
GV
an
gle
GT
1:S
pe
ed
Time
GT1:Turbine %Shaft Speed
GT1:Intel GuideVanes Angle
5
February 2016
50
60
70
80
90
100
110
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
2:D
wa
tt
GT
2:S
pe
ed
Time
GT2:Turbine %Shaft Speed
GT2:DWATT
35
37
39
41
43
45
47
49
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
2: F
ue
l S
tro
ke
Re
f
GT
2:S
pe
ed
Time
GT2:Turbine %Shaft Speed
GT2:Turbine FuelStroke Ref
1000
1050
1100
1150
1200
1250
1300
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
2:E
xh
au
st T
em
pe
ratu
re
GT
2:S
pe
ed
Time
GT2:Turbine %Shaft Speed
GT2:ExhaustTemperature
46
47
48
49
50
51
52
98
98.5
99
99.5
100
100.5
101
101.5
102
0 200 400 600
GT
2:I
GV
An
gle
GT
2:S
pe
ed
Time
GT2:Turbine %Shaft Speed
GT2:Intel GuideVanes Angle
Results and Discussion
6
February 2016
Thank you.
7
February 2016
