Simulation for Fuel Cell Inverter using Simplorer and Simulink
Simulation for Fuel Cell Inverter using Simplorer and Simulink
Simulation for Fuel Cell Inverter using Simplorer and Simulink
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<strong>Simulation</strong> <strong>for</strong> <strong>Fuel</strong> <strong>Cell</strong> <strong>Inverter</strong><br />
<strong>using</strong> <strong>Simplorer</strong> <strong>and</strong> <strong>Simulink</strong><br />
Ansoft Alternative Power<br />
<strong>Simulation</strong> Workshop<br />
Chris Smith<br />
October 14, 2003
Design Goals<br />
� Design power stage <strong>and</strong> control <strong>for</strong> 10kW fuel<br />
cell inverter<br />
� Reduce cost by eliminating expensive sensors<br />
<strong>and</strong> trans<strong>for</strong>mers, this complicates control<br />
� Reduce design iterations by simulating actual<br />
control on a better inverter model
Challenges<br />
� Multiple input multiple output (MIMO) system<br />
makes control design <strong>and</strong> implementation<br />
difficult<br />
� Theoretical inverter model lacks real-world<br />
problems like parasitic loses, switching noise,<br />
<strong>and</strong> non-linear loads
System Topology<br />
Rectifier<br />
Planar Trans<strong>for</strong>mers<br />
DC/DC<br />
<strong>Inverter</strong><br />
<strong>Fuel</strong> <strong>Cell</strong><br />
Input<br />
Fuse <strong>and</strong><br />
Contactor<br />
Auxiliary Power<br />
Bi-directional<br />
48V Battery Input<br />
AC fuses<br />
<strong>and</strong> output
<strong>Inverter</strong> Topology<br />
+<br />
Vdc<br />
-<br />
Phase<br />
A B C<br />
P<br />
V 0<br />
Ia<br />
Ib<br />
Ic<br />
V 1<br />
V 2<br />
V N
<strong>Simplorer</strong> Integration Example<br />
NEG NEG<br />
NEG<br />
NEG<br />
+<br />
V<br />
+<br />
V<br />
A<br />
A<br />
+<br />
V<br />
+<br />
V<br />
CONST<br />
CONST<br />
CONST<br />
CONST<br />
SiM2SiM<br />
SIMPLORER Link Interface<br />
SiM2SiM<br />
TRIANG1<br />
COMP1<br />
COMP2<br />
E1<br />
DC_bus.VAL<br />
D1<br />
D2<br />
D5<br />
D6<br />
C1<br />
47u<br />
C2<br />
47u<br />
NEG1 NEG2<br />
NEG4<br />
D3<br />
D4<br />
COMP3<br />
NEG3<br />
R2<br />
R_u.VAL<br />
R3<br />
R_b.VAL<br />
IGBT1<br />
IGBT2<br />
IGBT3<br />
IGBT4<br />
IGBT5<br />
IGBT6<br />
VM1<br />
VM2<br />
AM1<br />
AM2<br />
VM3<br />
VM4<br />
R4<br />
R5<br />
R6<br />
H_duty<br />
mid_duty<br />
R_b<br />
R_u<br />
SIM2SIM1<br />
R2.V<br />
R_u<br />
H_duty<br />
L1.I<br />
R3.V<br />
R_b<br />
L3.I<br />
Mid_duty<br />
L2.I<br />
L1<br />
130u<br />
L3<br />
130u<br />
L2<br />
130u<br />
D13<br />
D11 D12<br />
D14<br />
R1<br />
C3<br />
250u<br />
1e5<br />
CONST<br />
DC_bus<br />
DC
<strong>Simulink</strong> Integration Example<br />
<strong>Inverter</strong><br />
Vout<br />
Reference<br />
Discrete<br />
State Space
SIMPLORER<br />
� Easy to use, no theoretical analysis<br />
� Short learning curve<br />
� Stable<br />
� Specifically developed <strong>for</strong> complex<br />
electrical systems i.e. inverters
SIMULINK <strong>and</strong> MATLAB<br />
� Allows <strong>for</strong> complex controller design<br />
<strong>and</strong> implementation<br />
– Linear Quadratic Regulator (LQR)<br />
– Kalman Filter<br />
– Dual loop systems<br />
– Discrete systems<br />
– Fixed point controllers<br />
– Quantization errors
Conclusion<br />
� <strong>Simplorer</strong> improves inverter modeling <strong>for</strong><br />
<strong>Simulink</strong> control design<br />
� <strong>Simplorer</strong> <strong>and</strong> <strong>Simulink</strong> integration helps<br />
design a better inverter <strong>and</strong> controller
Questions?
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