Hi,
I am Maria. I am working in a project with PowerWorld (v19) and I am not able to get transient stability results.
I use a simple system, whose raw file is:
0, 100.00 / PSS/E-33.2 SUN, MAR 10 2013 17:41
1,'BUS1 ', 345.0000,3, 1, 1, 1,1.04000, -0.0000,1.10000,0.90000,1.10000,0.90000
2,'BUS2 ', 345.0000,1, 1, 1, 1,1.01613, -3.3252,1.10000,0.90000,1.10000,0.90000 0 / END OF BUS DATA, BEGIN LOAD DATA
2,'11',1, 1, 1, 0.000, 0.000, 0.000, 0.000, 103.130, -37.617, 1,1,0
0 / END OF LOAD DATA, BEGIN FIXED SHUNT DATA
0 / END OF FIXED SHUNT DATA, BEGIN GENERATOR DATA
1,'1 ', 106.496, 45.996, 300.000, -300.000,1.04000, 0, 100.000, 0.00000E+0, 1.73300E-1, 0.00000E+0, 0.00000E+0,1.00000,1, 100.0, 999.000, 10.000, 1,1.0000
0 / END OF GENERATOR DATA, BEGIN BRANCH DATA
1, 2,'1 ', 1.00000E-4, 5.76000E-2, 0.00010, 250.00, 250.00, 250.00, 0.00000, 0.00000, 0.00000, 0.00000,1,1, 0.00, 1,1.0000
0 / END OF BRANCH DATA, BEGIN TRANSFORMER DATA
0 / END OF TRANSFORMER DATA, BEGIN AREA DATA
1, 1, 0.000, 10.000,' '
0 / END OF AREA DATA, BEGIN TWO-TERMINAL DC DATA
0 / END OF TWO-TERMINAL DC DATA, BEGIN VSC DC LINE DATA
0 / END OF VSC DC LINE DATA, BEGIN IMPEDANCE CORRECTION DATA
0 / END OF IMPEDANCE CORRECTION DATA, BEGIN MULTI-TERMINAL DC DATA
0 / END OF MULTI-TERMINAL DC DATA, BEGIN MULTI-SECTION LINE DATA
0 / END OF MULTI-SECTION LINE DATA, BEGIN ZONE DATA
0 / END OF ZONE DATA, BEGIN INTER-AREA TRANSFER DATA
0 / END OF INTER-AREA TRANSFER DATA, BEGIN OWNER DATA
0 / END OF OWNER DATA, BEGIN FACTS DEVICE DATA
0 / END OF FACTS DEVICE DATA, BEGIN SWITCHED SHUNT DATA
0 / END OF SWITCHED SHUNT DATA, BEGIN GNE DATA
0 / END OF GNE DATA, BEGIN INDUCTION MACHINE DATA
0 / END OF INDUCTION MACHINE DATA
And I attach de dynamic PVD1 model (a distributed PV system model) to the generator in bus 1, using the default parameters. However, when trying to run de transient stability, an error appear in the second 0 saying:
Number of Viable Islands Changed from 1 to 0
No Viable Islands -- Solution Aborted
The island is:
Slack Bus Number Slack Bus Name Total Buses Energized Gen MW Gen Mvar Load MW Load Mvar Scheduled Exports DC MW Exports
1 BUS1 2 YES 106,5 46,0 106,5 38,8 0,0 0,0
I don't get why the island is not viable. I don't know why it doesn't meet the criteria or what is happening...I have found the criteria are:
- At least one island bus has some on-line generation with a positive Maximum MW Limit and is NOT set to regulate the voltage at a bus in another island.
- At least one island bus has a closed load (Note: It could still be a 0.0 MW load) OR the island is connected to another island by a DC transmission line.
If anyone could help me I would be so grateful. I am completely stuck.
Thanks,
Maria